---
_id: '34223'
abstract:
- lang: eng
text: In this study, quasi-unidirectional continuous fiber reinforced thermoplastics
(CFRTs) are joined with metal sheets via cold formed cylindrical, elliptical and
polygonal pin structures which are directly pressed into the CFRT component after
local infrared heating. In comparison to already available studies, the unique
novelty is the use of non-rotational symmetric pin structures for the CFRT/metal
hybrid joining. Thus, a variation in the fiber orientation in the CFRT component
as well as a variation in the non-rotational symmetric pins’ orientation in relation
to the sample orientation is conducted. The created samples are consequently mechanically
tested via single lap shear experiments in a quasi-static state. Finally, the
failure behavior of the single lap shear samples is investigated with the help
of microscopic images and detailed photographs. In the single lap shear tests,
it could be shown that non-rotational symmetric pin structures lead to an increase
in maximum testing forces of up to 74% when compared to cylindrical pins. However,
when normalized to the pin foot print related joint strength, only one polygonal
pin variation showed increased joint strength in comparison to cylindrical pin
structures. The investigation of the failure behavior showed two distinct failure
modes. The first failure mode was failure of the CFRT component due to an exceedance
of the maximum bearing strength of the pin-hole leading to significant damage
in the CFRT component. The second failure mode was pin-deflection due to the applied
testing load and a subsequent pin extraction from the CFRT component resulting
in significantly less visible damage in the CFRT component. Generally, CFRT failure
is more likely with a fiber orientation of 0° in relation to the load direction
while pin extraction typically occurs with a fiber orientation of 90°. It is assumed
that for future investigations, pin structures with an undercutting shape that
creates an interlocking joint could counteract the tendency for pin-extraction
and consequently lead to increased maximum joint strengths.
article_number: '4962'
author:
- first_name: Julian
full_name: Popp, Julian
last_name: Popp
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Dietmar
full_name: Drummer, Dietmar
last_name: Drummer
citation:
ama: Popp J, Römisch D, Merklein M, Drummer D. Joining of CFRT/Steel Hybrid Parts
via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures. Applied
Sciences. 2022;12(10). doi:10.3390/app12104962
apa: Popp, J., Römisch, D., Merklein, M., & Drummer, D. (2022). Joining of CFRT/Steel
Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures.
Applied Sciences, 12(10), Article 4962. https://doi.org/10.3390/app12104962
bibtex: '@article{Popp_Römisch_Merklein_Drummer_2022, title={Joining of CFRT/Steel
Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures},
volume={12}, DOI={10.3390/app12104962},
number={104962}, journal={Applied Sciences}, publisher={MDPI AG}, author={Popp,
Julian and Römisch, David and Merklein, Marion and Drummer, Dietmar}, year={2022}
}'
chicago: Popp, Julian, David Römisch, Marion Merklein, and Dietmar Drummer. “Joining
of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric
Pin Structures.” Applied Sciences 12, no. 10 (2022). https://doi.org/10.3390/app12104962.
ieee: 'J. Popp, D. Römisch, M. Merklein, and D. Drummer, “Joining of CFRT/Steel
Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures,”
Applied Sciences, vol. 12, no. 10, Art. no. 4962, 2022, doi: 10.3390/app12104962.'
mla: Popp, Julian, et al. “Joining of CFRT/Steel Hybrid Parts via Direct Pressing
of Cold Formed Non-Rotational Symmetric Pin Structures.” Applied Sciences,
vol. 12, no. 10, 4962, MDPI AG, 2022, doi:10.3390/app12104962.
short: J. Popp, D. Römisch, M. Merklein, D. Drummer, Applied Sciences 12 (2022).
date_created: 2022-12-05T21:48:01Z
date_updated: 2022-12-05T21:49:30Z
doi: 10.3390/app12104962
intvolume: ' 12'
issue: '10'
keyword:
- Fluid Flow and Transfer Processes
- Computer Science Applications
- Process Chemistry and Technology
- General Engineering
- Instrumentation
- General Materials Science
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Applied Sciences
publication_identifier:
issn:
- 2076-3417
publication_status: published
publisher: MDPI AG
status: public
title: Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational
Symmetric Pin Structures
type: journal_article
user_id: '7850'
volume: 12
year: '2022'
...
---
_id: '34225'
abstract:
- lang: eng
text: 'Thermoplastic composites (TPCs) are predestined for use in lightweight structures,
especially for high-volume applications. In many cases, joining is a key factor
for the successful application of TPCs in multi-material systems. Many joining
processes for this material group are based on warm forming the joining zone.
This results in a change of the local material structure characterised by modified
fibre paths, as well as varying fibre contents, which significantly influences
the load-bearing behaviour. During the forming process, many different phenomena
occur simultaneously at different scales. In this paper, the deformation modes
and flow mechanisms of TPCs during forming described in the literature are first
analysed. Based on this, three different joining processes are investigated: embedding
of inserts, moulding of contour joints, and hotclinching. In order to identify
the phenomena occurring in each process and to describe the characteristic resulting
material structure in the joining zones, micrographs as well as computed tomography
(CT) analyses are performed for both individual process stages and final joining
zones.'
article_number: '5454'
author:
- first_name: Juliane
full_name: Troschitz, Juliane
last_name: Troschitz
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Veit
full_name: Würfel, Veit
last_name: Würfel
- first_name: Robert
full_name: Kupfer, Robert
last_name: Kupfer
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: 'Troschitz J, Gröger B, Würfel V, Kupfer R, Gude M. Joining Processes for Fibre-Reinforced
Thermoplastics: Phenomena and Characterisation. Materials. 2022;15(15).
doi:10.3390/ma15155454'
apa: 'Troschitz, J., Gröger, B., Würfel, V., Kupfer, R., & Gude, M. (2022).
Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation.
Materials, 15(15), Article 5454. https://doi.org/10.3390/ma15155454'
bibtex: '@article{Troschitz_Gröger_Würfel_Kupfer_Gude_2022, title={Joining Processes
for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation}, volume={15},
DOI={10.3390/ma15155454}, number={155454},
journal={Materials}, publisher={MDPI AG}, author={Troschitz, Juliane and Gröger,
Benjamin and Würfel, Veit and Kupfer, Robert and Gude, Maik}, year={2022} }'
chicago: 'Troschitz, Juliane, Benjamin Gröger, Veit Würfel, Robert Kupfer, and Maik
Gude. “Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation.”
Materials 15, no. 15 (2022). https://doi.org/10.3390/ma15155454.'
ieee: 'J. Troschitz, B. Gröger, V. Würfel, R. Kupfer, and M. Gude, “Joining Processes
for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation,” Materials,
vol. 15, no. 15, Art. no. 5454, 2022, doi: 10.3390/ma15155454.'
mla: 'Troschitz, Juliane, et al. “Joining Processes for Fibre-Reinforced Thermoplastics:
Phenomena and Characterisation.” Materials, vol. 15, no. 15, 5454, MDPI
AG, 2022, doi:10.3390/ma15155454.'
short: J. Troschitz, B. Gröger, V. Würfel, R. Kupfer, M. Gude, Materials 15 (2022).
date_created: 2022-12-05T21:51:47Z
date_updated: 2022-12-05T21:54:09Z
doi: 10.3390/ma15155454
intvolume: ' 15'
issue: '15'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Materials
publication_identifier:
issn:
- 1996-1944
publication_status: published
publisher: MDPI AG
status: public
title: 'Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation'
type: journal_article
user_id: '7850'
volume: 15
year: '2022'
...
---
_id: '34221'
abstract:
- lang: eng
text: Unter dem Begriff der Auflösung wird für gewöhnlich das kleinste messbare
Merkmal eines Messsystems verstanden. In der dimensionellen Computertomografie
hingegen haben sich in den vergangenen Jahren mehrere Auflösungskonzepte etabliert,
die aufgrund der fehlenden Normung zueinander im Kontrast stehen. In diesem Beitrag
werden die drei häufigsten Konzepte, die Voxelgröße, die Ortsauflösung und die
metrologische Strukturauflösung in Kürze vorgestellt. Anschließend wird eine Abgrenzung
zwischen den Konzepten getroffen und ein Integration der bestehenden Konzepte
in ein gemeinsames Amplituden-Wellenlängen Diagramm diskutiert.
author:
- first_name: Felix
full_name: Binder, Felix
last_name: Binder
- first_name: Tino
full_name: Hausotte, Tino
last_name: Hausotte
citation:
ama: Binder F, Hausotte T. Über die Abgrenzung von Auflösungskonzepten in der industriellen
Computertomografie. tm - Technisches Messen. 2022;89(s1):20-24. doi:10.1515/teme-2022-0065
apa: Binder, F., & Hausotte, T. (2022). Über die Abgrenzung von Auflösungskonzepten
in der industriellen Computertomografie. Tm - Technisches Messen, 89(s1),
20–24. https://doi.org/10.1515/teme-2022-0065
bibtex: '@article{Binder_Hausotte_2022, title={Über die Abgrenzung von Auflösungskonzepten
in der industriellen Computertomografie}, volume={89}, DOI={10.1515/teme-2022-0065},
number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH},
author={Binder, Felix and Hausotte, Tino}, year={2022}, pages={20–24} }'
chicago: 'Binder, Felix, and Tino Hausotte. “Über Die Abgrenzung von Auflösungskonzepten
in Der Industriellen Computertomografie.” Tm - Technisches Messen 89, no.
s1 (2022): 20–24. https://doi.org/10.1515/teme-2022-0065.'
ieee: 'F. Binder and T. Hausotte, “Über die Abgrenzung von Auflösungskonzepten in
der industriellen Computertomografie,” tm - Technisches Messen, vol. 89,
no. s1, pp. 20–24, 2022, doi: 10.1515/teme-2022-0065.'
mla: Binder, Felix, and Tino Hausotte. “Über Die Abgrenzung von Auflösungskonzepten
in Der Industriellen Computertomografie.” Tm - Technisches Messen, vol.
89, no. s1, Walter de Gruyter GmbH, 2022, pp. 20–24, doi:10.1515/teme-2022-0065.
short: F. Binder, T. Hausotte, Tm - Technisches Messen 89 (2022) 20–24.
date_created: 2022-12-05T21:43:51Z
date_updated: 2022-12-05T21:44:52Z
doi: 10.1515/teme-2022-0065
intvolume: ' 89'
issue: s1
keyword:
- Electrical and Electronic Engineering
- Instrumentation
language:
- iso: eng
page: 20-24
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: tm - Technisches Messen
publication_identifier:
issn:
- 2196-7113
- 0171-8096
publication_status: published
publisher: Walter de Gruyter GmbH
status: public
title: Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie
type: journal_article
user_id: '7850'
volume: 89
year: '2022'
...
---
_id: '34220'
abstract:
- lang: eng
text: Die Erkennbarkeit von Rissen und geometrischen Qualitätskennwerten von Fügeverbindungen
mittels Computertomografie ist von der Interfacestrukturauflösung abhängig, welche
mittels geeigneter Prüfkörper untersucht wird. Die Reduktion von Abbildungsartefakten
im Bereich von Bauteilzwischenräumen und -oberflächen verbessert deren dimensionelle
Erfassbarkeit.
author:
- first_name: Matthias
full_name: Busch, Matthias
last_name: Busch
- first_name: Lorenz
full_name: Butzhammer, Lorenz
last_name: Butzhammer
- first_name: Tino
full_name: Hausotte, Tino
last_name: Hausotte
citation:
ama: Busch M, Butzhammer L, Hausotte T. Herausforderungen bei computertomografischen
Untersuchungen von Fügeverbindungen. tm - Technisches Messen. 2022;89(s1):83-88.
doi:10.1515/teme-2022-0061
apa: Busch, M., Butzhammer, L., & Hausotte, T. (2022). Herausforderungen bei
computertomografischen Untersuchungen von Fügeverbindungen. Tm - Technisches
Messen, 89(s1), 83–88. https://doi.org/10.1515/teme-2022-0061
bibtex: '@article{Busch_Butzhammer_Hausotte_2022, title={Herausforderungen bei computertomografischen
Untersuchungen von Fügeverbindungen}, volume={89}, DOI={10.1515/teme-2022-0061},
number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH},
author={Busch, Matthias and Butzhammer, Lorenz and Hausotte, Tino}, year={2022},
pages={83–88} }'
chicago: 'Busch, Matthias, Lorenz Butzhammer, and Tino Hausotte. “Herausforderungen
Bei Computertomografischen Untersuchungen von Fügeverbindungen.” Tm - Technisches
Messen 89, no. s1 (2022): 83–88. https://doi.org/10.1515/teme-2022-0061.'
ieee: 'M. Busch, L. Butzhammer, and T. Hausotte, “Herausforderungen bei computertomografischen
Untersuchungen von Fügeverbindungen,” tm - Technisches Messen, vol. 89,
no. s1, pp. 83–88, 2022, doi: 10.1515/teme-2022-0061.'
mla: Busch, Matthias, et al. “Herausforderungen Bei Computertomografischen Untersuchungen
von Fügeverbindungen.” Tm - Technisches Messen, vol. 89, no. s1, Walter
de Gruyter GmbH, 2022, pp. 83–88, doi:10.1515/teme-2022-0061.
short: M. Busch, L. Butzhammer, T. Hausotte, Tm - Technisches Messen 89 (2022) 83–88.
date_created: 2022-12-05T21:42:07Z
date_updated: 2022-12-05T21:43:30Z
doi: 10.1515/teme-2022-0061
intvolume: ' 89'
issue: s1
keyword:
- Electrical and Electronic Engineering
- Instrumentation
language:
- iso: eng
page: 83-88
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: tm - Technisches Messen
publication_identifier:
issn:
- 2196-7113
- 0171-8096
publication_status: published
publisher: Walter de Gruyter GmbH
status: public
title: Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen
type: journal_article
user_id: '7850'
volume: 89
year: '2022'
...
---
_id: '30626'
abstract:
- lang: eng
text: Clinching is a very cost-efficient method for joining two or more sheets made
of identical or different materials. However, the current evaluation methods cannot
confirm the critical geometrical features of joints such as neck thickness, undercut,
and bottom thickness. Furthermore, the effects caused by joining process such
as elastic deformation and crack-closure are significant for the joining quality,
but often earn insufficient attention. Therefore, computed tomography (CT) and
Transient Dynamic Analysis (TDA) as an ultrasonic testing and evaluation procedure
are combined to overcome the obstacles mentioned above. In order to have a well-defined
and reproducible typical geometrical error in clinching, specimens with a pre-specified
lateral offset of the punch with 0.1 mm, 0.2 mm are as well as with no lateral
offset are investigated using CT. The specimens are treated with conductive copper
varnish in varying intensities to support the two sheets' distinguishability in
the CT measurement. The subsequently extracted surfaces from CT-scan data are
used to create three-dimensional models for a numerical Transient Dynamic Analysis.
Hereby, a harmonic force is applied to one sheet and the transferred energy is
determined at the opposite side of the clinch point on the other sheet. The transmitted
energy can be used as a quantitative measure for the joining quality. This setup
is simulated by means of Finite-Element-Method and the specimens are investigated
experimentally using a piezo actuator and a piezo sensor. The novelty of the results
presented here is the completely non-destructive investigation of joint specimen
by CT of similar materials with a contrast given foil in between the sheets and
the subsequent TDA, which can easily detect difference between the specimens by
evaluation of the energy dissipation of the joints.
author:
- first_name: D.
full_name: Köhler, D.
last_name: Köhler
- first_name: B.
full_name: Sadeghian, B.
last_name: Sadeghian
- first_name: J.
full_name: Troschitz, J.
last_name: Troschitz
- first_name: R.
full_name: Kupfer, R.
last_name: Kupfer
- first_name: M.
full_name: Gude, M.
last_name: Gude
- first_name: A.
full_name: Brosius, A.
last_name: Brosius
citation:
ama: Köhler D, Sadeghian B, Troschitz J, Kupfer R, Gude M, Brosius A. Characterisation
of lateral offsets in clinch points with computed tomography and transient dynamic
analysis. Journal of Advanced Joining Processes. 2022;5:100089. doi:10.1016/j.jajp.2021.100089
apa: Köhler, D., Sadeghian, B., Troschitz, J., Kupfer, R., Gude, M., & Brosius,
A. (2022). Characterisation of lateral offsets in clinch points with computed
tomography and transient dynamic analysis. Journal of Advanced Joining Processes,
5, 100089. https://doi.org/10.1016/j.jajp.2021.100089
bibtex: '@article{Köhler_Sadeghian_Troschitz_Kupfer_Gude_Brosius_2022, title={Characterisation
of lateral offsets in clinch points with computed tomography and transient dynamic
analysis}, volume={5}, DOI={10.1016/j.jajp.2021.100089},
journal={Journal of Advanced Joining Processes}, author={Köhler, D. and Sadeghian,
B. and Troschitz, J. and Kupfer, R. and Gude, M. and Brosius, A.}, year={2022},
pages={100089} }'
chicago: 'Köhler, D., B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, and A. Brosius.
“Characterisation of Lateral Offsets in Clinch Points with Computed Tomography
and Transient Dynamic Analysis.” Journal of Advanced Joining Processes
5 (2022): 100089. https://doi.org/10.1016/j.jajp.2021.100089.'
ieee: 'D. Köhler, B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, and A. Brosius,
“Characterisation of lateral offsets in clinch points with computed tomography
and transient dynamic analysis,” Journal of Advanced Joining Processes,
vol. 5, p. 100089, 2022, doi: 10.1016/j.jajp.2021.100089.'
mla: Köhler, D., et al. “Characterisation of Lateral Offsets in Clinch Points with
Computed Tomography and Transient Dynamic Analysis.” Journal of Advanced Joining
Processes, vol. 5, 2022, p. 100089, doi:10.1016/j.jajp.2021.100089.
short: D. Köhler, B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, A. Brosius, Journal
of Advanced Joining Processes 5 (2022) 100089.
date_created: 2022-03-28T10:27:42Z
date_updated: 2023-01-02T10:54:44Z
department:
- _id: '630'
doi: 10.1016/j.jajp.2021.100089
intvolume: ' 5'
language:
- iso: eng
page: '100089'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Journal of Advanced Joining Processes
status: public
title: Characterisation of lateral offsets in clinch points with computed tomography
and transient dynamic analysis
type: journal_article
user_id: '14931'
volume: 5
year: '2022'
...
---
_id: '30625'
abstract:
- lang: eng
text: Continuous fiber reinforced thermoplastics (CFRT)/steel hybrid parts offer
promising properties and possibilities, which can exceed the capabilities of both
individual materials. In this case, the joining operation presents the main challenge.
This paper studies the direct pin pressing where metallic pins with undercutting
geometries, protruding from the metal component, are inserted into a locally infrared
heated CFRT component. The aim is to investigate the joining process with a focus
on the filling of the undercut features with matrix and fibers to create a primarily
form-fitting joint. For good mechanical properties of the joint, it is crucial,
that the undercutting features are filled and do not lead to significant deconsolidations.
The pin structures are manufactured from 42CrMo4 steel on a cnc-lathe and are
joined via welding with HCT600+Zn sheet metal. The CFRT samples are manufactured
from polypropylene and approximately 45% vol. unidirectional glass fibers. In
the scope of this study, different pin geometries are joined with varying process
settings and micro sections of the joints are investigated via reflected light
microscopy. It could be shown that the undercuts can be completely filled with
matrix and fiber material using the described process route. Based on the optical
investigations a suitable setting of joining parameters is defined and lap shear
as well as cross head samples are manufactured and experimentally tested. It could
be seen that independently from the pin geometry the lap shear strength was primarily
limited due to shear failure of the pin structures and it is assumed that the
base diameter and pin strength predominantly determine the joint strength. Cross
head samples failed due to pin extraction. Here, a significant increase of the
joint strength with undercutting features could be shown in comparison to cylindrical
reference pins.
author:
- first_name: J.
full_name: Popp, J.
last_name: Popp
- first_name: D.
full_name: Drummer, D.
last_name: Drummer
citation:
ama: Popp J, Drummer D. Joining of continuous fiber reinforced thermoplastic/steel
hybrid parts via undercutting pin structures and infrared heating. Journal
of Advanced Joining Processes. 2022;5:100084. doi:10.1016/j.jajp.2021.100084
apa: Popp, J., & Drummer, D. (2022). Joining of continuous fiber reinforced
thermoplastic/steel hybrid parts via undercutting pin structures and infrared
heating. Journal of Advanced Joining Processes, 5, 100084. https://doi.org/10.1016/j.jajp.2021.100084
bibtex: '@article{Popp_Drummer_2022, title={Joining of continuous fiber reinforced
thermoplastic/steel hybrid parts via undercutting pin structures and infrared
heating}, volume={5}, DOI={10.1016/j.jajp.2021.100084},
journal={Journal of Advanced Joining Processes}, author={Popp, J. and Drummer,
D.}, year={2022}, pages={100084} }'
chicago: 'Popp, J., and D. Drummer. “Joining of Continuous Fiber Reinforced Thermoplastic/Steel
Hybrid Parts via Undercutting Pin Structures and Infrared Heating.” Journal
of Advanced Joining Processes 5 (2022): 100084. https://doi.org/10.1016/j.jajp.2021.100084.'
ieee: 'J. Popp and D. Drummer, “Joining of continuous fiber reinforced thermoplastic/steel
hybrid parts via undercutting pin structures and infrared heating,” Journal
of Advanced Joining Processes, vol. 5, p. 100084, 2022, doi: 10.1016/j.jajp.2021.100084.'
mla: Popp, J., and D. Drummer. “Joining of Continuous Fiber Reinforced Thermoplastic/Steel
Hybrid Parts via Undercutting Pin Structures and Infrared Heating.” Journal
of Advanced Joining Processes, vol. 5, 2022, p. 100084, doi:10.1016/j.jajp.2021.100084.
short: J. Popp, D. Drummer, Journal of Advanced Joining Processes 5 (2022) 100084.
date_created: 2022-03-28T10:25:57Z
date_updated: 2023-01-02T10:55:23Z
department:
- _id: '630'
doi: 10.1016/j.jajp.2021.100084
intvolume: ' 5'
language:
- iso: eng
page: '100084'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Journal of Advanced Joining Processes
status: public
title: Joining of continuous fiber reinforced thermoplastic/steel hybrid parts via
undercutting pin structures and infrared heating
type: journal_article
user_id: '14931'
volume: 5
year: '2022'
...
---
_id: '30717'
abstract:
- lang: eng
text: To achieve the climate objectives, various measures are taken to increase
the efficiency of raw materials and energies used. A sector with a large proportion
of the global consumption of resources is the mobility sector. To increase the
efficiency in this field, large efforts are made to reduce the weight of moving
masses. One approach is the use of multi-material systems, which utilises different
materials and their specific properties depending on the local requirements. Multi-material
systems consist often of materials which differ in strength and density, for example,
high-strength steels, aluminium alloys or polymers. Additionally, such a system
can utilise different geometries of the components to be joined, characterised
for example by varying sheet thicknesses. A central challenge of producing these
systems is the joining of the individual components. This requires robust joining
processes capable of covering the entire spectrum of possible variants and is
feasible for different physical properties of the materials. Since conventional
joining processes are rather rigid and have difficulty reacting to changing process
and disturbance variables, new joining processes are necessary. With the objective
of being able to react versatile to varying parameters, a process combination
consisting of a semi-tubular self-piercing riveting process and orbital forming
process with adjustable tumbling kinematic is introduced. Due to the process combination
of tumbling and self-piercing riveting, mutual influences of the two process components
are analysed in regard to material flow and process forces. Further, the investigations
show the influence of a varying tumbling angle on the joining process itself and
how the characteristic properties undercut, rivet head end position and residual
sheet thickness of the joint are affected. The material used for the joining partners
is an aluminium alloy EN AW-6014 typical for multi-material systems in the automotive
industry and the rivets are from type Rivset C produced by the Böllhoff company.
author:
- first_name: S.
full_name: Wituschek, S.
last_name: Wituschek
- first_name: M.
full_name: Lechner, M.
last_name: Lechner
citation:
ama: Wituschek S, Lechner M. Investigation of the influence of the tumbling angle
on a tumbling self-piercing riveting process. Production Engineering. Published
online 2022. doi:10.1177/14644207221080068
apa: Wituschek, S., & Lechner, M. (2022). Investigation of the influence of
the tumbling angle on a tumbling self-piercing riveting process. Production
Engineering. https://doi.org/10.1177/14644207221080068
bibtex: '@article{Wituschek_Lechner_2022, title={Investigation of the influence
of the tumbling angle on a tumbling self-piercing riveting process}, DOI={10.1177/14644207221080068},
journal={Production Engineering}, author={Wituschek, S. and Lechner, M.}, year={2022}
}'
chicago: Wituschek, S., and M. Lechner. “Investigation of the Influence of the Tumbling
Angle on a Tumbling Self-Piercing Riveting Process.” Production Engineering,
2022. https://doi.org/10.1177/14644207221080068.
ieee: 'S. Wituschek and M. Lechner, “Investigation of the influence of the tumbling
angle on a tumbling self-piercing riveting process,” Production Engineering,
2022, doi: 10.1177/14644207221080068.'
mla: Wituschek, S., and M. Lechner. “Investigation of the Influence of the Tumbling
Angle on a Tumbling Self-Piercing Riveting Process.” Production Engineering,
2022, doi:10.1177/14644207221080068.
short: S. Wituschek, M. Lechner, Production Engineering (2022).
date_created: 2022-03-29T10:33:15Z
date_updated: 2023-01-02T10:56:48Z
department:
- _id: '630'
doi: 10.1177/14644207221080068
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Production Engineering
status: public
title: Investigation of the influence of the tumbling angle on a tumbling self-piercing
riveting process
type: journal_article
user_id: '14931'
year: '2022'
...
---
_id: '30640'
abstract:
- lang: eng
text: Surface determination is an essential step of the measurement process in industrial
X-ray computed tomography (XCT). The starting point of the surface determination
process step is a single grey value threshold within a voxel volume in conventional
surface determination methods. However, this value is not always found in the
reconstructed volume in the local environment of the surface of the measurement
object due to various artefacts, so that none or incorrect surfaces are determined.
In order to find surfaces independently of a single grey value, a three-dimensional
approach of the initial contour determination based on a Prewitt edge detection
algorithm is presented in this work. This method is applied to different test
specimens and specimen compositions which, due to their material or material constellation,
their geometric properties with regard to surfaces and interfaces as well as their
calibrated size and length dimensions, embody relevant properties in the examination
of joining connections. It is shown that by using the surface determination method
in the measurement process, both a higher metrological structure resolution and
interface structure resolution can be achieved. Surface artefacts can be reduced
by the application and it is also an approach to improved surface finding for
the multi-material components that are challenging for XCT.
author:
- first_name: M.
full_name: Busch, M.
last_name: Busch
- first_name: T.
full_name: Hausotte, T.
last_name: Hausotte
citation:
ama: Busch M, Hausotte T. Application of an edge detection algorithm for surface
determination in industrial X-ray computed tomography. Production Engineering.
Published online 2022. doi:10.1007/s11740-021-01100-z
apa: Busch, M., & Hausotte, T. (2022). Application of an edge detection algorithm
for surface determination in industrial X-ray computed tomography. Production
Engineering. https://doi.org/10.1007/s11740-021-01100-z
bibtex: '@article{Busch_Hausotte_2022, title={Application of an edge detection algorithm
for surface determination in industrial X-ray computed tomography}, DOI={10.1007/s11740-021-01100-z},
journal={Production Engineering}, author={Busch, M. and Hausotte, T.}, year={2022}
}'
chicago: Busch, M., and T. Hausotte. “Application of an Edge Detection Algorithm
for Surface Determination in Industrial X-Ray Computed Tomography.” Production
Engineering, 2022. https://doi.org/10.1007/s11740-021-01100-z.
ieee: 'M. Busch and T. Hausotte, “Application of an edge detection algorithm for
surface determination in industrial X-ray computed tomography,” Production
Engineering, 2022, doi: 10.1007/s11740-021-01100-z.'
mla: Busch, M., and T. Hausotte. “Application of an Edge Detection Algorithm for
Surface Determination in Industrial X-Ray Computed Tomography.” Production
Engineering, 2022, doi:10.1007/s11740-021-01100-z.
short: M. Busch, T. Hausotte, Production Engineering (2022).
date_created: 2022-03-28T12:15:58Z
date_updated: 2023-01-02T10:57:15Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01100-z
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Production Engineering
status: public
title: Application of an edge detection algorithm for surface determination in industrial
X-ray computed tomography
type: journal_article
user_id: '14931'
year: '2022'
...
---
_id: '34249'
abstract:
- lang: eng
text: The trend towards lightweight design, driven by increasingly stringent emission
targets, poses challenges to conventional joining processes due to the different
mechanical properties of the joining partners used to manufacture multi-material
systems. For this reason, new versatile joining processes are in demand for joining
dissimilar materials. In this regard, pin joining with cold extruded pin structures
is a relatively new, two-stage joining process for joining materials such as high-strength
steel and aluminium as well as steel and fibre-reinforced plastic to multi-material
systems, without the need for auxiliary elements. Due to the novelty of the process,
there are currently only a few studies on the robustness of this joining process
available. Thus, limited statements on the stability of the joining process considering
uncertain process conditions, such as varying material properties or friction
values, can be provided. Motivated by this, the presented work investigates the
influence of different uncertain process parameters on the pin extrusion as well
as on the joining process itself, carrying out a systematic robustness analysis.
Therefore, the methodical approach covers the complete process chain of pin joining,
including the load-bearing capacity of the joint by means of numerical simulation
and data-driven methods. Thereby, a deeper understanding of the pin joining process
is generated and the versatility of the novel joining process is increased. Additionally,
the provision of manufacturing recommendations for the forming of pin joints leads
to a significant decrease in the failure probability caused by ploughing or buckling
effects.
article_number: '122'
author:
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
citation:
ama: Römisch D, Zirngibl C, Schleich B, Wartzack S, Merklein M. Robustness Analysis
of Pin Joining. Journal of Manufacturing and Materials Processing. 2022;6(5).
doi:10.3390/jmmp6050122
apa: Römisch, D., Zirngibl, C., Schleich, B., Wartzack, S., & Merklein, M. (2022).
Robustness Analysis of Pin Joining. Journal of Manufacturing and Materials
Processing, 6(5), Article 122. https://doi.org/10.3390/jmmp6050122
bibtex: '@article{Römisch_Zirngibl_Schleich_Wartzack_Merklein_2022, title={Robustness
Analysis of Pin Joining}, volume={6}, DOI={10.3390/jmmp6050122},
number={5122}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Römisch, David and Zirngibl, Christoph and Schleich, Benjamin and
Wartzack, Sandro and Merklein, Marion}, year={2022} }'
chicago: Römisch, David, Christoph Zirngibl, Benjamin Schleich, Sandro Wartzack,
and Marion Merklein. “Robustness Analysis of Pin Joining.” Journal of Manufacturing
and Materials Processing 6, no. 5 (2022). https://doi.org/10.3390/jmmp6050122.
ieee: 'D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, and M. Merklein, “Robustness
Analysis of Pin Joining,” Journal of Manufacturing and Materials Processing,
vol. 6, no. 5, Art. no. 122, 2022, doi: 10.3390/jmmp6050122.'
mla: Römisch, David, et al. “Robustness Analysis of Pin Joining.” Journal of
Manufacturing and Materials Processing, vol. 6, no. 5, 122, MDPI AG, 2022,
doi:10.3390/jmmp6050122.
short: D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, M. Merklein, Journal of
Manufacturing and Materials Processing 6 (2022).
date_created: 2022-12-06T19:03:30Z
date_updated: 2023-01-02T11:01:05Z
department:
- _id: '630'
doi: 10.3390/jmmp6050122
intvolume: ' 6'
issue: '5'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2504-4494/6/5/122
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Robustness Analysis of Pin Joining
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34248'
abstract:
- lang: eng
text: Pin extrusion is a common process to realise pin structures in different geometrical
dimensions for a subsequent joining operation. Nevertheless, the process of pin
extrusion offers process limits regarding sheet thinning as a consequence of the
punch penetration depth into the sheet. Thereby, cracks at the residual sheet
thickness can occur during strength tests, resulting in a failure of the complete
joint due to severe thinning. Therefore, measures have to be taken into account
to reduce the thinning. One possibility is the application of orbital formed tailored
blanks with a local material pre-distribution, which allows a higher sheet thickness
in the desired area. Within this contribution, the novel approach of a process
combination of orbital forming and pin extrusion is investigated. To reveal the
potential of a local material pre-distribution, conventional specimens are compared
with previously orbital formed components. Relevant parameters such as the residual
sheet thickness, the pin height as well as the average hardness values are compared.
The results show a significant positive influence of a local material pre-distribution
on the residual sheet thickness as well as the resulting pin height. Furthermore,
the strain hardening during orbital forming can be seen as an additional advantage.
To conclude the results, the process limits of conventional pin extrusion can
be expanded significantly by the application of specimens with a local material
pre-distribution.
article_number: '127'
author:
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Andreas
full_name: Hetzel, Andreas
last_name: Hetzel
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
citation:
ama: Römisch D, Hetzel A, Wituschek S, Lechner M, Merklein M. Pin Extrusion for
Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution.
Journal of Manufacturing and Materials Processing. 2022;6(6). doi:10.3390/jmmp6060127
apa: Römisch, D., Hetzel, A., Wituschek, S., Lechner, M., & Merklein, M. (2022).
Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with
Local Material Pre-Distribution. Journal of Manufacturing and Materials Processing,
6(6), Article 127. https://doi.org/10.3390/jmmp6060127
bibtex: '@article{Römisch_Hetzel_Wituschek_Lechner_Merklein_2022, title={Pin Extrusion
for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material
Pre-Distribution}, volume={6}, DOI={10.3390/jmmp6060127},
number={6127}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Römisch, David and Hetzel, Andreas and Wituschek, Simon and Lechner,
Michael and Merklein, Marion}, year={2022} }'
chicago: Römisch, David, Andreas Hetzel, Simon Wituschek, Michael Lechner, and Marion
Merklein. “Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks
with Local Material Pre-Distribution.” Journal of Manufacturing and Materials
Processing 6, no. 6 (2022). https://doi.org/10.3390/jmmp6060127.
ieee: 'D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, and M. Merklein, “Pin Extrusion
for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material
Pre-Distribution,” Journal of Manufacturing and Materials Processing, vol.
6, no. 6, Art. no. 127, 2022, doi: 10.3390/jmmp6060127.'
mla: Römisch, David, et al. “Pin Extrusion for Mechanical Joining from Orbital Formed
Tailored Blanks with Local Material Pre-Distribution.” Journal of Manufacturing
and Materials Processing, vol. 6, no. 6, 127, MDPI AG, 2022, doi:10.3390/jmmp6060127.
short: D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, M. Merklein, Journal of
Manufacturing and Materials Processing 6 (2022).
date_created: 2022-12-06T18:56:24Z
date_updated: 2023-01-02T11:01:34Z
department:
- _id: '630'
doi: 10.3390/jmmp6060127
intvolume: ' 6'
issue: '6'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with
Local Material Pre-Distribution
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34247'
abstract:
- lang: eng
text: 'The paper presents research regarding a thermally supported multi-material
clinching process (hotclinching) for metal and thermoplastic composite (TPC) sheets:
an experimental approach to investigate the flow pressing phenomena during joining.
Therefore, an experimental setup is developed to compress the TPC-specimens in
out-of-plane direction with different initial TPC thicknesses and varying temperature
levels. The deformed specimens are analyzed with computed tomography to investigate
the resultant inner material structure at different compaction levels. The results
are compared in terms of force-compaction-curves and occurring phenomena during
compaction. The change of the material structure is characterized by sliding phenomena
and crack initiation and growth.'
article_number: '5039'
author:
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Martin
full_name: Kraus, Martin
last_name: Kraus
- first_name: Juliane
full_name: Troschitz, Juliane
last_name: Troschitz
- first_name: René
full_name: Füßel, René
last_name: Füßel
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gröger B, Römisch D, Kraus M, et al. Warmforming Flow Pressing Characteristics
of Continuous Fibre Reinforced Thermoplastic Composites. Polymers. 2022;14(22).
doi:10.3390/polym14225039
apa: Gröger, B., Römisch, D., Kraus, M., Troschitz, J., Füßel, R., Merklein, M.,
& Gude, M. (2022). Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites. Polymers, 14(22), Article
5039. https://doi.org/10.3390/polym14225039
bibtex: '@article{Gröger_Römisch_Kraus_Troschitz_Füßel_Merklein_Gude_2022, title={Warmforming
Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic Composites},
volume={14}, DOI={10.3390/polym14225039},
number={225039}, journal={Polymers}, publisher={MDPI AG}, author={Gröger, Benjamin
and Römisch, David and Kraus, Martin and Troschitz, Juliane and Füßel, René and
Merklein, Marion and Gude, Maik}, year={2022} }'
chicago: Gröger, Benjamin, David Römisch, Martin Kraus, Juliane Troschitz, René
Füßel, Marion Merklein, and Maik Gude. “Warmforming Flow Pressing Characteristics
of Continuous Fibre Reinforced Thermoplastic Composites.” Polymers 14,
no. 22 (2022). https://doi.org/10.3390/polym14225039.
ieee: 'B. Gröger et al., “Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites,” Polymers, vol. 14, no. 22,
Art. no. 5039, 2022, doi: 10.3390/polym14225039.'
mla: Gröger, Benjamin, et al. “Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites.” Polymers, vol. 14, no. 22,
5039, MDPI AG, 2022, doi:10.3390/polym14225039.
short: B. Gröger, D. Römisch, M. Kraus, J. Troschitz, R. Füßel, M. Merklein, M.
Gude, Polymers 14 (2022).
date_created: 2022-12-06T18:51:19Z
date_updated: 2023-01-02T11:02:56Z
department:
- _id: '630'
doi: 10.3390/polym14225039
intvolume: ' 14'
issue: '22'
keyword:
- Polymers and Plastics
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Polymers
publication_identifier:
issn:
- 2073-4360
publication_status: published
publisher: MDPI AG
status: public
title: Warmforming Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic
Composites
type: journal_article
user_id: '14931'
volume: 14
year: '2022'
...
---
_id: '34214'
abstract:
- lang: eng
text: This article presents the application and evaluation of a cantilever with
integrated sensing and actuation as part of an atomic force microscope (AFM) with
an adjustable probe direction, which is integrated into a nano measuring machine
(NMM-1). The AFM, which is operated in closed-loop intermittent contact mode,
is based on two rotational axes that enable the adjustment of the probe direction
to cover a complete hemisphere. The axes greatly enlarge the metrology frame of
the measuring system by materials with a comparatively high coefficient of thermal
expansion, which ultimately limits the achievable measurement uncertainty of the
measuring system. Thus, to reduce the thermal sensitivity of the system, the redesign
of the rotational kinematics is mandatory. However, in this article, some preliminary
investigations on the application of a self-sensing cantilever with an integrated
micro heater for its stimulation will be presented. In previous investigations,
a piezoelectric actuator has been applied to stimulate the cantilever. However,
the removal of the piezoelectric actuator, which is enabled by the application
of a cantilever with an integrated micro heater, promises an essential simplification
of the sensor holder. Thus, in the future it might be possible to use materials
with a low coefficient of thermal expansion, which are often difficult to machine
and therefore only allow for rather simple geometries. Furthermore, because of
the creepage of piezoelectric actuators, their removal from the metrology frame
might lead to improved metrological characteristics. As will be shown, there are
no significant differences between the two modes of actuation. Therefore, the
redesigned rotational system will be based on the cantilever with integrated sensing
and actuation.
author:
- first_name: Janik
full_name: Schaude, Janik
last_name: Schaude
- first_name: Tino
full_name: Hausotte, Tino
last_name: Hausotte
citation:
ama: Schaude J, Hausotte T. Atomic Force Microscope with an Adjustable Probe Direction
and Integrated Sensing and Actuation. Nanomanufacturing and Metrology.
2022;5(2):139-148. doi:10.1007/s41871-022-00143-9
apa: Schaude, J., & Hausotte, T. (2022). Atomic Force Microscope with an Adjustable
Probe Direction and Integrated Sensing and Actuation. Nanomanufacturing and
Metrology, 5(2), 139–148. https://doi.org/10.1007/s41871-022-00143-9
bibtex: '@article{Schaude_Hausotte_2022, title={Atomic Force Microscope with an
Adjustable Probe Direction and Integrated Sensing and Actuation}, volume={5},
DOI={10.1007/s41871-022-00143-9},
number={2}, journal={Nanomanufacturing and Metrology}, publisher={Springer Science
and Business Media LLC}, author={Schaude, Janik and Hausotte, Tino}, year={2022},
pages={139–148} }'
chicago: 'Schaude, Janik, and Tino Hausotte. “Atomic Force Microscope with an Adjustable
Probe Direction and Integrated Sensing and Actuation.” Nanomanufacturing and
Metrology 5, no. 2 (2022): 139–48. https://doi.org/10.1007/s41871-022-00143-9.'
ieee: 'J. Schaude and T. Hausotte, “Atomic Force Microscope with an Adjustable Probe
Direction and Integrated Sensing and Actuation,” Nanomanufacturing and Metrology,
vol. 5, no. 2, pp. 139–148, 2022, doi: 10.1007/s41871-022-00143-9.'
mla: Schaude, Janik, and Tino Hausotte. “Atomic Force Microscope with an Adjustable
Probe Direction and Integrated Sensing and Actuation.” Nanomanufacturing and
Metrology, vol. 5, no. 2, Springer Science and Business Media LLC, 2022, pp.
139–48, doi:10.1007/s41871-022-00143-9.
short: J. Schaude, T. Hausotte, Nanomanufacturing and Metrology 5 (2022) 139–148.
date_created: 2022-12-05T21:15:09Z
date_updated: 2023-01-02T11:10:08Z
department:
- _id: '630'
doi: 10.1007/s41871-022-00143-9
intvolume: ' 5'
issue: '2'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Materials Science (miscellaneous)
language:
- iso: eng
page: 139-148
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Nanomanufacturing and Metrology
publication_identifier:
issn:
- 2520-811X
- 2520-8128
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Atomic Force Microscope with an Adjustable Probe Direction and Integrated Sensing
and Actuation
type: journal_article
user_id: '14931'
volume: 5
year: '2022'
...
---
_id: '34280'
abstract:
- lang: eng
text: Clinching is a cost efficient method for joining components in series production.
To assure the clinch point’s quality, the force displacement curve during clinching
or the bottom thickness are monitored. The most significant geometrical characteristics
of the clinch point, neck thickness and undercut, are usually tested destructively
by microsectioning. However, micrograph preparation goes ahead with a resetting
of elastic deformations and crack-closing after unloading. To generate a comprehensive
knowledge of the clinch point’s inner geometry under load, in-situ computed tomography
(CT) and acoustic testing (TDA) can be combined. While the TDA is highly sensitive
to the inner state of the clinch point, it could detect critical events like crack
development during loading. If such events are indicated, the loading process
is stopped and a stepped in-situ CT of the following crack and deformation development
is performed. In this paper, the concept is applied to the process of clinching
itself, providing a detailed three-dimensional insight in the development of the
joining zone. A test set-up is used which allows a stepwise clinching of two aluminium
sheets EN AW 6014. Furthermore, this set-up is positioned within a CT system.
In order to minimize X-ray absorption, a beryllium cylinder is used within the
set-up frame and clinching tools are made from Si3N4. The actuator and sensor
necessary for the TDA are integrated in the set-up. In regular process steps,
the clinching process is interrupted in order to perform a TDA and a CT scan.
In order to enhance the visibility of the interface, a thin tin layer is positioned
between the sheets prior clinching. It is shown, that the test-set up allows a
monitoring of the dynamic behaviour of the specimen during clinching while the
CT scans visualize the inner geometry and material flow non-destructively.
author:
- first_name: Daniel
full_name: Köhler, Daniel
last_name: Köhler
- first_name: Richard
full_name: Stephan, Richard
last_name: Stephan
- first_name: Robert
full_name: Kupfer, Robert
last_name: Kupfer
- first_name: Juliane
full_name: Troschitz, Juliane
last_name: Troschitz
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: 'Köhler D, Stephan R, Kupfer R, Troschitz J, Brosius A, Gude M. Investigations
on Combined in situ CT and Acoustic Analysis during Clinching. In: Key Engineering
Materials. Vol 926. Trans Tech Publications, Ltd.; 2022:1489-1497. doi:10.4028/p-32330d'
apa: Köhler, D., Stephan, R., Kupfer, R., Troschitz, J., Brosius, A., & Gude,
M. (2022). Investigations on Combined in situ CT and Acoustic Analysis during
Clinching. Key Engineering Materials, 926, 1489–1497. https://doi.org/10.4028/p-32330d
bibtex: '@inproceedings{Köhler_Stephan_Kupfer_Troschitz_Brosius_Gude_2022, title={Investigations
on Combined in situ CT and Acoustic Analysis during Clinching}, volume={926},
DOI={10.4028/p-32330d}, booktitle={Key
Engineering Materials}, publisher={Trans Tech Publications, Ltd.}, author={Köhler,
Daniel and Stephan, Richard and Kupfer, Robert and Troschitz, Juliane and Brosius,
Alexander and Gude, Maik}, year={2022}, pages={1489–1497} }'
chicago: Köhler, Daniel, Richard Stephan, Robert Kupfer, Juliane Troschitz, Alexander
Brosius, and Maik Gude. “Investigations on Combined in Situ CT and Acoustic Analysis
during Clinching.” In Key Engineering Materials, 926:1489–97. Trans Tech
Publications, Ltd., 2022. https://doi.org/10.4028/p-32330d.
ieee: 'D. Köhler, R. Stephan, R. Kupfer, J. Troschitz, A. Brosius, and M. Gude,
“Investigations on Combined in situ CT and Acoustic Analysis during Clinching,”
in Key Engineering Materials, 2022, vol. 926, pp. 1489–1497, doi: 10.4028/p-32330d.'
mla: Köhler, Daniel, et al. “Investigations on Combined in Situ CT and Acoustic
Analysis during Clinching.” Key Engineering Materials, vol. 926, Trans
Tech Publications, Ltd., 2022, pp. 1489–97, doi:10.4028/p-32330d.
short: 'D. Köhler, R. Stephan, R. Kupfer, J. Troschitz, A. Brosius, M. Gude, in:
Key Engineering Materials, Trans Tech Publications, Ltd., 2022, pp. 1489–1497.'
date_created: 2022-12-07T16:38:44Z
date_updated: 2023-01-02T11:13:59Z
department:
- _id: '630'
doi: 10.4028/p-32330d
intvolume: ' 926'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 1489-1497
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Key Engineering Materials
publication_identifier:
issn:
- 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
status: public
title: Investigations on Combined in situ CT and Acoustic Analysis during Clinching
type: conference
user_id: '14931'
volume: 926
year: '2022'
...
---
_id: '36462'
abstract:
- lang: eng
text: The conduction of structure-borne sound through joints causes energy dissipation.
The sound reduction index describes this energy loss as a level decrease in the
particle velocity across series-connected damping elements for which the superposition
principle applies. This simple model can help to develop a testing method for
joints based on this characteristic energy loss. In this paper, this model is
experimentally evaluated for multiple in-series clinched aluminium sheets. Samples
connected by several clinch points arranged in parallel are investigated experimentally,
and the results are discussed.
author:
- first_name: Richard
full_name: Stephan, Richard
last_name: Stephan
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Stephan R, Brosius A. Experimental Measurement Method and Evaluation of an
Analytical Approach for Sound Conduction through Multiple Clinched Sheets. In:
The 28th Saxon Conference on Forming Technology SFU and the 7th International
Conference on Accuracy in Forming Technology ICAFT. MDPI; 2022. doi:10.3390/engproc2022026025'
apa: Stephan, R., & Brosius, A. (2022). Experimental Measurement Method and
Evaluation of an Analytical Approach for Sound Conduction through Multiple Clinched
Sheets. The 28th Saxon Conference on Forming Technology SFU and the 7th International
Conference on Accuracy in Forming Technology ICAFT. https://doi.org/10.3390/engproc2022026025
bibtex: '@inproceedings{Stephan_Brosius_2022, title={Experimental Measurement Method
and Evaluation of an Analytical Approach for Sound Conduction through Multiple
Clinched Sheets}, DOI={10.3390/engproc2022026025},
booktitle={The 28th Saxon Conference on Forming Technology SFU and the 7th International
Conference on Accuracy in Forming Technology ICAFT}, publisher={MDPI}, author={Stephan,
Richard and Brosius, Alexander}, year={2022} }'
chicago: Stephan, Richard, and Alexander Brosius. “Experimental Measurement Method
and Evaluation of an Analytical Approach for Sound Conduction through Multiple
Clinched Sheets.” In The 28th Saxon Conference on Forming Technology SFU and
the 7th International Conference on Accuracy in Forming Technology ICAFT.
MDPI, 2022. https://doi.org/10.3390/engproc2022026025.
ieee: 'R. Stephan and A. Brosius, “Experimental Measurement Method and Evaluation
of an Analytical Approach for Sound Conduction through Multiple Clinched Sheets,”
2022, doi: 10.3390/engproc2022026025.'
mla: Stephan, Richard, and Alexander Brosius. “Experimental Measurement Method and
Evaluation of an Analytical Approach for Sound Conduction through Multiple Clinched
Sheets.” The 28th Saxon Conference on Forming Technology SFU and the 7th International
Conference on Accuracy in Forming Technology ICAFT, MDPI, 2022, doi:10.3390/engproc2022026025.
short: 'R. Stephan, A. Brosius, in: The 28th Saxon Conference on Forming Technology
SFU and the 7th International Conference on Accuracy in Forming Technology ICAFT,
MDPI, 2022.'
date_created: 2023-01-12T13:55:07Z
date_updated: 2023-01-12T13:58:49Z
department:
- _id: '630'
doi: 10.3390/engproc2022026025
keyword:
- clinching
- mechanical joining
- damping
- model
- evaluation
- dynamics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2673-4591/26/1/25
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: The 28th Saxon Conference on Forming Technology SFU and the 7th International
Conference on Accuracy in Forming Technology ICAFT
publication_status: published
publisher: MDPI
status: public
title: Experimental Measurement Method and Evaluation of an Analytical Approach for
Sound Conduction through Multiple Clinched Sheets
type: conference
user_id: '7850'
year: '2022'
...
---
_id: '36468'
author:
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
citation:
ama: 'Römisch D, Merklein M. Experimental and Numerical Analysis of Cold Formed
Multi Pin Structures Using a Multi-Acting Tool Design. In: ; 2022.'
apa: Römisch, D., & Merklein, M. (2022). Experimental and Numerical Analysis
of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design. 12th
Tooling Conference and Exhibition, Örebro.
bibtex: '@inproceedings{Römisch_Merklein_2022, title={Experimental and Numerical
Analysis of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design},
author={Römisch, David and Merklein, Marion}, year={2022} }'
chicago: Römisch, David, and Marion Merklein. “Experimental and Numerical Analysis
of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design,” 2022.
ieee: D. Römisch and M. Merklein, “Experimental and Numerical Analysis of Cold Formed
Multi Pin Structures Using a Multi-Acting Tool Design,” presented at the 12th
Tooling Conference and Exhibition, Örebro, 2022.
mla: Römisch, David, and Marion Merklein. Experimental and Numerical Analysis
of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design. 2022.
short: 'D. Römisch, M. Merklein, in: 2022.'
conference:
location: Örebro
name: 12th Tooling Conference and Exhibition
date_created: 2023-01-12T14:30:21Z
date_updated: 2023-01-12T14:34:25Z
department:
- _id: '630'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication_identifier:
unknown:
- ISBN 978-3-200-08359-2
status: public
title: Experimental and Numerical Analysis of Cold Formed Multi Pin Structures Using
a Multi-Acting Tool Design
type: conference
user_id: '7850'
year: '2022'
...
---
_id: '36470'
author:
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
citation:
ama: 'Wituschek S, Lechner M. Versatile tool design for a tumbling self-piercing
riveting process. In: ; 2022.'
apa: Wituschek, S., & Lechner, M. (2022). Versatile tool design for a tumbling
self-piercing riveting process. Tooling 2022 .
bibtex: '@inproceedings{Wituschek_Lechner_2022, title={Versatile tool design for
a tumbling self-piercing riveting process}, author={Wituschek, Simon and Lechner,
Michael}, year={2022} }'
chicago: Wituschek, Simon, and Michael Lechner. “Versatile Tool Design for a Tumbling
Self-Piercing Riveting Process,” 2022.
ieee: S. Wituschek and M. Lechner, “Versatile tool design for a tumbling self-piercing
riveting process,” presented at the Tooling 2022 , 2022.
mla: Wituschek, Simon, and Michael Lechner. Versatile Tool Design for a Tumbling
Self-Piercing Riveting Process. 2022.
short: 'S. Wituschek, M. Lechner, in: 2022.'
conference:
name: 'Tooling 2022 '
date_created: 2023-01-12T14:45:15Z
date_updated: 2023-01-12T14:48:42Z
department:
- _id: '630'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
status: public
title: Versatile tool design for a tumbling self-piercing riveting process
type: conference
user_id: '7850'
year: '2022'
...
---
_id: '36473'
abstract:
- lang: eng
text: "Destructive micrograph analysis (MA) is the standard method for the assessment
of clinched joints. However, during the joint preparation for the MA, geometric
features of the joint can change due to elastic effects and closing cracks. X-ray
computed tomography (CT) is a promising alternative to investigate the joint non-destructively.
However, if the\r\nmaterial properties of similar joining partners are the same,
the CT is not able to correctly resolve surfaces in the joint that are close to
or pressing onto each other. These surfaces are relevant for the determination
of characteristic dimensions such as neck thickness and undercut. By placing a
thin, highly radiopaque tin layer between the joining partners, the interfacial
area in the reconstructed volume can be highlighted. In this work, a method for
the localisation of the tin layer inside the joint as well as threshold value
procedures for the outer joint contour in cross section images are investigated.
The measured characteristic dimensions are compared with measured values from
MA of the same samples and of samples without tin layer. In addition, possible
effects of the tin layer on the joining point\r\ncharacteristics as well as problems
of the MA are discussed."
author:
- first_name: Matthias
full_name: Busch, Matthias
last_name: Busch
- first_name: 'Daniel '
full_name: 'Köhler, Daniel '
last_name: Köhler
- first_name: 'Tino '
full_name: 'Hausotte, Tino '
last_name: Hausotte
- first_name: 'Robert '
full_name: 'Kupfer, Robert '
last_name: Kupfer
- first_name: 'Juliane '
full_name: 'Troschitz, Juliane '
last_name: Troschitz
- first_name: 'Maik '
full_name: 'Gude, Maik '
last_name: Gude
citation:
ama: 'Busch M, Köhler D, Hausotte T, Kupfer R, Troschitz J, Gude M. Approach to
Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray
Computed Tomography. In: ; 2022.'
apa: Busch, M., Köhler, D., Hausotte, T., Kupfer, R., Troschitz, J., & Gude,
M. (2022). Approach to Determine the Characteristic Dimensions of Clinched
Joints by Industrial X-ray Computed Tomography. 4 th Singapore International
Non-destructive Testing Conference and Exhibition (SINCE2022).
bibtex: '@inproceedings{Busch_Köhler_Hausotte_Kupfer_Troschitz_Gude_2022, title={Approach
to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray
Computed Tomography}, author={Busch, Matthias and Köhler, Daniel and Hausotte,
Tino and Kupfer, Robert and Troschitz, Juliane and Gude, Maik }, year={2022}
}'
chicago: Busch, Matthias, Daniel Köhler, Tino Hausotte, Robert Kupfer, Juliane Troschitz,
and Maik Gude. “Approach to Determine the Characteristic Dimensions of Clinched
Joints by Industrial X-Ray Computed Tomography,” 2022.
ieee: M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, and M. Gude, “Approach
to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray
Computed Tomography,” presented at the 4 th Singapore International Non-destructive
Testing Conference and Exhibition (SINCE2022), 2022.
mla: Busch, Matthias, et al. Approach to Determine the Characteristic Dimensions
of Clinched Joints by Industrial X-Ray Computed Tomography. 2022.
short: 'M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, M. Gude, in:
2022.'
conference:
name: 4 th Singapore International Non-destructive Testing Conference and Exhibition
(SINCE2022)
date_created: 2023-01-12T14:56:56Z
date_updated: 2023-01-12T15:03:14Z
department:
- _id: '630'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ndt.net/article/since2022/papers/SINCE_2022_paper_4764.pdf
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
status: public
title: Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial
X-ray Computed Tomography
type: conference
user_id: '7850'
year: '2022'
...
---
_id: '36332'
abstract:
- lang: eng
text: AlSi casting alloys combine excellent castability with high strength. Hence,
this group of alloys is often used in the automotive sector. The challenge for
this application is the brittle character of these alloys which leads to cracks
during joint formation when mechanical joining technologies are used. A rise in
ductility can be achieved by a considerable increase in the solidification rate
which results in grain refinement. High solidification rates can be realized in
twin–roll casting (TRC) by water-cooled rolls. Therefore, a hypoeutectic EN AC–AlSi9
(for European Norm - aluminum cast product) is manufactured by the TRC process
and analyzed. Subsequently, joining investigations are performed on castings in
as-cast and heat-treated condition using the self-piercing riveting process considering
the joint formation and the load-bearing capacity. Due to the fine microstructure,
the crack initiation can be avoided during joining, while maintaining the joining
parameters, especially by specimens in heat treatment conditions. Furthermore,
due to the extremely fine microstructure, the load-bearing capacity of the joint
can be significantly increased in terms of the maximum load-bearing force and
the energy absorbed.
article_number: '2200874'
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Jakob
full_name: Ostermeier, Jakob
last_name: Ostermeier
- first_name: Jan Tobias
full_name: Krüger, Jan Tobias
id: '44307'
last_name: Krüger
orcid: 0000-0002-0827-9654
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
citation:
ama: Neuser M, Kappe F, Ostermeier J, et al. Mechanical Properties and Joinability
of AlSi9 Alloy Manufactured by Twin‐Roll Casting. Advanced Engineering Materials.
2022;24(10). doi:10.1002/adem.202200874
apa: Neuser, M., Kappe, F., Ostermeier, J., Krüger, J. T., Bobbert, M., Meschut,
G., Schaper, M., & Grydin, O. (2022). Mechanical Properties and Joinability
of AlSi9 Alloy Manufactured by Twin‐Roll Casting. Advanced Engineering Materials,
24(10), Article 2200874. https://doi.org/10.1002/adem.202200874
bibtex: '@article{Neuser_Kappe_Ostermeier_Krüger_Bobbert_Meschut_Schaper_Grydin_2022,
title={Mechanical Properties and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll
Casting}, volume={24}, DOI={10.1002/adem.202200874},
number={102200874}, journal={Advanced Engineering Materials}, publisher={Wiley},
author={Neuser, Moritz and Kappe, Fabian and Ostermeier, Jakob and Krüger, Jan
Tobias and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko and Grydin,
Olexandr}, year={2022} }'
chicago: Neuser, Moritz, Fabian Kappe, Jakob Ostermeier, Jan Tobias Krüger, Mathias
Bobbert, Gerson Meschut, Mirko Schaper, and Olexandr Grydin. “Mechanical Properties
and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll Casting.” Advanced
Engineering Materials 24, no. 10 (2022). https://doi.org/10.1002/adem.202200874.
ieee: 'M. Neuser et al., “Mechanical Properties and Joinability of AlSi9
Alloy Manufactured by Twin‐Roll Casting,” Advanced Engineering Materials,
vol. 24, no. 10, Art. no. 2200874, 2022, doi: 10.1002/adem.202200874.'
mla: Neuser, Moritz, et al. “Mechanical Properties and Joinability of AlSi9 Alloy
Manufactured by Twin‐Roll Casting.” Advanced Engineering Materials, vol.
24, no. 10, 2200874, Wiley, 2022, doi:10.1002/adem.202200874.
short: M. Neuser, F. Kappe, J. Ostermeier, J.T. Krüger, M. Bobbert, G. Meschut,
M. Schaper, O. Grydin, Advanced Engineering Materials 24 (2022).
date_created: 2023-01-12T09:33:55Z
date_updated: 2024-03-14T15:22:33Z
department:
- _id: '158'
- _id: '157'
- _id: '321'
doi: 10.1002/adem.202200874
intvolume: ' 24'
issue: '10'
keyword:
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/full/10.1002/adem.202200874
oa: '1'
project:
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Advanced Engineering Materials
publication_identifier:
issn:
- 1438-1656
- 1527-2648
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Mechanical Properties and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll
Casting
type: journal_article
user_id: '32340'
volume: 24
year: '2022'
...
---
_id: '34215'
abstract:
- lang: eng
text: 'Clinching as a mechanical joining technique allows a fast and reliable joining
of metal sheets in large-scale production. An efficient design and dimensioning
of clinched joints requires a holistic understanding of the material, the joining
process and the resulting properties of the joint. In this paper, the process
chain for clinching metal sheets is described and experimental techniques are
proposed to analyze the process-microstructure-property relationships from the
sheet metal to the joined structure. At the example of clinching aluminum EN AW
6014, characterization methods are applied and discussed for the following characteristics:
the mechanical properties of the sheet materials, the tribological behavior in
the joining system, the joining process and the resulting material structure,
the load-bearing behavior of the joint, the damage and degradation as well as
the service life and crack growth behavior. The compilation of the characterization
methods gives an overview on the advantages and weaknesses of the methods and
the multiple interactions of material, process and properties during clinching.
In addition, the results of the analyses on EN AW 6014 can be applied for parameterization
and validation of simulations.'
article_number: '100108'
author:
- first_name: Robert
full_name: Kupfer, Robert
last_name: Kupfer
- first_name: Daniel
full_name: Köhler, Daniel
last_name: Köhler
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Lars
full_name: Ewenz, Lars
last_name: Ewenz
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Deborah
full_name: Weiß, Deborah
id: '45673'
last_name: Weiß
- first_name: Behdad
full_name: Sadeghian, Behdad
last_name: Sadeghian
- first_name: Matthias
full_name: Busch, Matthias
last_name: Busch
- first_name: Jan Tobias
full_name: Krüger, Jan Tobias
id: '44307'
last_name: Krüger
orcid: 0000-0002-0827-9654
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Juliane
full_name: Troschitz, Juliane
last_name: Troschitz
citation:
ama: Kupfer R, Köhler D, Römisch D, et al. Clinching of Aluminum Materials – Methods
for the Continuous Characterization of Process, Microstructure and Properties.
Journal of Advanced Joining Processes. 2022;5. doi:10.1016/j.jajp.2022.100108
apa: Kupfer, R., Köhler, D., Römisch, D., Wituschek, S., Ewenz, L., Kalich, J.,
Weiß, D., Sadeghian, B., Busch, M., Krüger, J. T., Neuser, M., Grydin, O., Böhnke,
M., Bielak, C. R., & Troschitz, J. (2022). Clinching of Aluminum Materials
– Methods for the Continuous Characterization of Process, Microstructure and Properties.
Journal of Advanced Joining Processes, 5, Article 100108. https://doi.org/10.1016/j.jajp.2022.100108
bibtex: '@article{Kupfer_Köhler_Römisch_Wituschek_Ewenz_Kalich_Weiß_Sadeghian_Busch_Krüger_et
al._2022, title={Clinching of Aluminum Materials – Methods for the Continuous
Characterization of Process, Microstructure and Properties}, volume={5}, DOI={10.1016/j.jajp.2022.100108},
number={100108}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
BV}, author={Kupfer, Robert and Köhler, Daniel and Römisch, David and Wituschek,
Simon and Ewenz, Lars and Kalich, Jan and Weiß, Deborah and Sadeghian, Behdad
and Busch, Matthias and Krüger, Jan Tobias and et al.}, year={2022} }'
chicago: Kupfer, Robert, Daniel Köhler, David Römisch, Simon Wituschek, Lars Ewenz,
Jan Kalich, Deborah Weiß, et al. “Clinching of Aluminum Materials – Methods for
the Continuous Characterization of Process, Microstructure and Properties.” Journal
of Advanced Joining Processes 5 (2022). https://doi.org/10.1016/j.jajp.2022.100108.
ieee: 'R. Kupfer et al., “Clinching of Aluminum Materials – Methods for the
Continuous Characterization of Process, Microstructure and Properties,” Journal
of Advanced Joining Processes, vol. 5, Art. no. 100108, 2022, doi: 10.1016/j.jajp.2022.100108.'
mla: Kupfer, Robert, et al. “Clinching of Aluminum Materials – Methods for the Continuous
Characterization of Process, Microstructure and Properties.” Journal of Advanced
Joining Processes, vol. 5, 100108, Elsevier BV, 2022, doi:10.1016/j.jajp.2022.100108.
short: R. Kupfer, D. Köhler, D. Römisch, S. Wituschek, L. Ewenz, J. Kalich, D. Weiß,
B. Sadeghian, M. Busch, J.T. Krüger, M. Neuser, O. Grydin, M. Böhnke, C.R. Bielak,
J. Troschitz, Journal of Advanced Joining Processes 5 (2022).
date_created: 2022-12-05T21:17:22Z
date_updated: 2024-03-20T11:54:33Z
department:
- _id: '630'
- _id: '158'
doi: 10.1016/j.jajp.2022.100108
intvolume: ' 5'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Engineering (miscellaneous)
- Chemical Engineering (miscellaneous)
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '141'
name: 'TRR 285 – B02: TRR 285 - Subproject B02'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
- _id: '143'
name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Clinching of Aluminum Materials – Methods for the Continuous Characterization
of Process, Microstructure and Properties
type: journal_article
user_id: '34782'
volume: 5
year: '2022'
...
---
_id: '34264'
abstract:
- lang: eng
text: In industrial x-ray computed tomography (CT), the application of more complex
scan paths in comparison to the typical circular trajectory (${360}^{\circ}$ rotation
of the measurement object) can extend the potential of CT. One way to enable such
3D scan trajectories is to use a 6-degrees-of-freedom (DOF) object manipulator
system. In our case, a hexapod is mounted on top of the rotary table of a commercial
CT scanner. This allows for adaptive tilting of the measurement object during
the scan. For high accuracy, the geometry calibration of such setups is typically
done using the x-ray projections of a calibrated multi-sphere object. Contrary
to this, here, we demonstrate a procedure that is based on only a single sphere
and can therefore experimentally be implemented with low effort. Using the intrinsic
geometry parameters of the CT device as prior information, the hexapod coordinate
system with respect to the CT machine coordinate system is determined by means
of a one-step optimization approach. The resulting parameters are used to calculate
projection matrices that enable the volume reconstruction for 3D scan trajectories.
The method is validated using simulated x-ray images and experimental investigations
including dimensional measurements. For the used setup, geometric measurement
results for 3D scan trajectories that are calibrated with the presented method
show in sum increased errors compared to the circular scans. A limited pose accuracy
of the manipulator system is discussed as a potential cause. The results nevertheless
indicate that the presented method is generally feasible for dimensional CT measurements
provided that the pose accuracy is sufficient. The calibration procedure can therefore
be a low-cost and easier to implement alternative compared to trajectory calibration
methods based on multi-sphere objects, but with a tendency towards lower measurement
accuracy. The methodology can in principle be transferred to different setups
with 6-DOF manipulator systems, e.g. C-arm CT devices with a robot arm.
article_number: '015403'
author:
- first_name: Lorenz
full_name: Butzhammer, Lorenz
last_name: Butzhammer
- first_name: Andreas Michael
full_name: Müller, Andreas Michael
last_name: Müller
- first_name: Tino
full_name: Hausotte, Tino
last_name: Hausotte
citation:
ama: Butzhammer L, Müller AM, Hausotte T. Calibration of 3D scan trajectories for
an industrial computed tomography setup with 6-DOF object manipulator system using
a single sphere. Measurement Science and Technology. 2022;34(1). doi:10.1088/1361-6501/ac9856
apa: Butzhammer, L., Müller, A. M., & Hausotte, T. (2022). Calibration of 3D
scan trajectories for an industrial computed tomography setup with 6-DOF object
manipulator system using a single sphere. Measurement Science and Technology,
34(1), Article 015403. https://doi.org/10.1088/1361-6501/ac9856
bibtex: '@article{Butzhammer_Müller_Hausotte_2022, title={Calibration of 3D scan
trajectories for an industrial computed tomography setup with 6-DOF object manipulator
system using a single sphere}, volume={34}, DOI={10.1088/1361-6501/ac9856},
number={1015403}, journal={Measurement Science and Technology}, publisher={IOP
Publishing}, author={Butzhammer, Lorenz and Müller, Andreas Michael and Hausotte,
Tino}, year={2022} }'
chicago: Butzhammer, Lorenz, Andreas Michael Müller, and Tino Hausotte. “Calibration
of 3D Scan Trajectories for an Industrial Computed Tomography Setup with 6-DOF
Object Manipulator System Using a Single Sphere.” Measurement Science and Technology
34, no. 1 (2022). https://doi.org/10.1088/1361-6501/ac9856.
ieee: 'L. Butzhammer, A. M. Müller, and T. Hausotte, “Calibration of 3D scan trajectories
for an industrial computed tomography setup with 6-DOF object manipulator system
using a single sphere,” Measurement Science and Technology, vol. 34, no.
1, Art. no. 015403, 2022, doi: 10.1088/1361-6501/ac9856.'
mla: Butzhammer, Lorenz, et al. “Calibration of 3D Scan Trajectories for an Industrial
Computed Tomography Setup with 6-DOF Object Manipulator System Using a Single
Sphere.” Measurement Science and Technology, vol. 34, no. 1, 015403, IOP
Publishing, 2022, doi:10.1088/1361-6501/ac9856.
short: L. Butzhammer, A.M. Müller, T. Hausotte, Measurement Science and Technology
34 (2022).
date_created: 2022-12-07T10:46:14Z
date_updated: 2023-01-13T14:34:31Z
department:
- _id: '630'
doi: 10.1088/1361-6501/ac9856
intvolume: ' 34'
issue: '1'
keyword:
- Applied Mathematics
- Instrumentation
- Engineering (miscellaneous)
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://iopscience.iop.org/article/10.1088/1361-6501/ac9856
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Measurement Science and Technology
publication_identifier:
issn:
- 0957-0233
- 1361-6501
publication_status: published
publisher: IOP Publishing
status: public
title: Calibration of 3D scan trajectories for an industrial computed tomography setup
with 6-DOF object manipulator system using a single sphere
type: journal_article
user_id: '7850'
volume: 34
year: '2022'
...