---
_id: '30661'
abstract:
- lang: eng
text: As lightweight design gains more and more attention, time and cost-efficient
joining methods such as clinching are becoming more popular. A clinch point’s
quality is usually determined by ex situ destructive analyses such as microsectioning.
However, these methods do not yield the detection of phenomena occurring during
loading such as elastic deformations and cracks that close after unloading. Alternatively,
in situ computed tomography (in situ CT) can be used to investigate the loading
process of clinch points. In this paper, a method for in situ CT analysis of a
single-lap shear test with clinched metal sheets is presented at the example of
a clinched joint with two 2 mm thick aluminum sheets. Furthermore, the potential
of this method to validate numerical simulations is shown. Since the sheets’ surfaces
are locally in contact with each other, the interface between both aluminum sheets
and therefore the exact contour of the joining partners is difficult to identify
in CT analyses. To compensate for this, the application of copper varnish between
the sheets is investigated. The best in situ CT results are achieved with both
sheets treated. It showed that with this treatment, in situ CT is suitable to
properly observe the three-dimensional deformation behavior and to identify the
failure modes.
author:
- first_name: D.
full_name: Köhler, D.
last_name: Köhler
- first_name: R.
full_name: Kupfer, R.
last_name: Kupfer
- first_name: J.
full_name: Troschitz, J.
last_name: Troschitz
- first_name: M.
full_name: Gude, M.
last_name: Gude
citation:
ama: Köhler D, Kupfer R, Troschitz J, Gude M. In Situ Computed Tomography—Analysis
of a Single-Lap Shear Test with Clinch Points. Materials. 2021;14:1859.
doi:10.3390/ma14081859
apa: Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2021). In Situ Computed
Tomography—Analysis of a Single-Lap Shear Test with Clinch Points. Materials,
14, 1859. https://doi.org/10.3390/ma14081859
bibtex: '@article{Köhler_Kupfer_Troschitz_Gude_2021, title={In Situ Computed Tomography—Analysis
of a Single-Lap Shear Test with Clinch Points}, volume={14}, DOI={10.3390/ma14081859},
journal={Materials}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude,
M.}, year={2021}, pages={1859} }'
chicago: 'Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “In Situ Computed Tomography—Analysis
of a Single-Lap Shear Test with Clinch Points.” Materials 14 (2021): 1859.
https://doi.org/10.3390/ma14081859.'
ieee: 'D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “In Situ Computed Tomography—Analysis
of a Single-Lap Shear Test with Clinch Points,” Materials, vol. 14, p.
1859, 2021, doi: 10.3390/ma14081859.'
mla: Köhler, D., et al. “In Situ Computed Tomography—Analysis of a Single-Lap Shear
Test with Clinch Points.” Materials, vol. 14, 2021, p. 1859, doi:10.3390/ma14081859.
short: D. Köhler, R. Kupfer, J. Troschitz, M. Gude, Materials 14 (2021) 1859.
date_created: 2022-03-28T13:41:29Z
date_updated: 2022-03-30T07:53:37Z
doi: 10.3390/ma14081859
intvolume: ' 14'
language:
- iso: eng
page: '1859'
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: Materials
status: public
title: In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch
Points
type: journal_article
user_id: '68518'
volume: 14
year: '2021'
...
---
_id: '30719'
abstract:
- lang: eng
text: Due to increasing demands regarding ecological and economic specifications
in vehicle design, the effort required for production is continuously increasing.
One trend is the increased use of multi-material systems, which are characterised
by the use of different materials such as high-strength steels or aluminium alloys.
In addition to the varying mechanical properties of the components, an increased
number of variants accompanied by different geometries is leading to increasing
challenges on body construction. For the assembly and connection of the individual
components, conventional joining methods reach their limitations. Therefore, new
joining methods are necessary, which feature properties of versatility and can
adapt to process and disturbance variables. One way of achieving tailored joints
is to use a tumbling self-piercing riveting process. For the design of the process
route, numerical investigations are necessary for which a characterisation of
the friction properties is necessary. This paper therefore investigates the contact
and friction conditions that occur in a tumbling self-piercing riveting process.
The individual contacts between the process components are identified and based
on this, suitable processes for the characterisation of the friction factors -
and coefficients are selected and performed.
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. Friction Characterisation for a Tumbling Self-Piercing
Riveting Process. Key Engineering Materials. 2021;883:27-34. doi:10.4028/www.scientific.net/kem.883.27
apa: Wituschek, S., & Lechner, M. (2021). Friction Characterisation for a Tumbling
Self-Piercing Riveting Process. Key Engineering Materials, 883,
27–34. https://doi.org/10.4028/www.scientific.net/kem.883.27
bibtex: '@article{Wituschek_Lechner_2021, title={Friction Characterisation for a
Tumbling Self-Piercing Riveting Process}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.27},
journal={Key Engineering Materials}, author={Wituschek, S. and Lechner, M.}, year={2021},
pages={27–34} }'
chicago: 'Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling
Self-Piercing Riveting Process.” Key Engineering Materials 883 (2021):
27–34. https://doi.org/10.4028/www.scientific.net/kem.883.27.'
ieee: 'S. Wituschek and M. Lechner, “Friction Characterisation for a Tumbling Self-Piercing
Riveting Process,” Key Engineering Materials, vol. 883, pp. 27–34, 2021,
doi: 10.4028/www.scientific.net/kem.883.27.'
mla: Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling Self-Piercing
Riveting Process.” Key Engineering Materials, vol. 883, 2021, pp. 27–34,
doi:10.4028/www.scientific.net/kem.883.27.
short: S. Wituschek, M. Lechner, Key Engineering Materials 883 (2021) 27–34.
date_created: 2022-03-29T10:35:19Z
date_updated: 2022-03-29T15:54:33Z
doi: 10.4028/www.scientific.net/kem.883.27
intvolume: ' 883'
language:
- iso: eng
page: 27-34
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: Key Engineering Materials
status: public
title: Friction Characterisation for a Tumbling Self-Piercing Riveting Process
type: journal_article
user_id: '68518'
volume: 883
year: '2021'
...
---
_id: '30649'
abstract:
- lang: eng
text: Nowadays, the production of modern lightweight structures, like a body in
white structure requires a wide variety of mechanical joining processes. To fulfill
the various demands, mechanical joining processes and joining elements (JE) are
used. Very often, they are adapted to the application, which leads in turn to
a numerous of different variants, high costs, and loss of the process chain versatility.
To overcome this drawback, an innovative approach is the usage of individually
produced and task-adapted JE, the so-called friction spun joint connectors (FSJC).
These connectors can be modified in shape as well as in material properties. This
flexibility offers high potential for lightweight design but also increases the
necessary analytical effort regarding the forming process as well as the manufactured
joint's properties. Therefore, a new analysis strategy based on the Finite-Element-Method
(FEM) is proposed, which numerically determines the local load bearing capacity
within a given joint in order to identify the critical regions for load transfer.
The process of joining element manufacturing and the analysis strategy will be
described in detail and optimization results of the joints are shown. Numerical
results are discussed and possible recommendations for joint manufacturing are
derived.
author:
- first_name: Christian
full_name: Wischer, Christian
id: '72219'
last_name: Wischer
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Werner
full_name: Homberg, Werner
last_name: Homberg
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wischer C, Steinfelder C, Homberg W, Brosius A. Joining with Friction Spun
Joint Connectors – Manufacturing and Analysis. IOP Conference Series: Materials
Science and Engineering. 2021;1157:012007. doi:10.1088/1757-899x/1157/1/012007'
apa: 'Wischer, C., Steinfelder, C., Homberg, W., & Brosius, A. (2021). Joining
with Friction Spun Joint Connectors – Manufacturing and Analysis. IOP Conference
Series: Materials Science and Engineering, 1157, 012007. https://doi.org/10.1088/1757-899x/1157/1/012007'
bibtex: '@article{Wischer_Steinfelder_Homberg_Brosius_2021, title={Joining with
Friction Spun Joint Connectors – Manufacturing and Analysis}, volume={1157}, DOI={10.1088/1757-899x/1157/1/012007},
journal={IOP Conference Series: Materials Science and Engineering}, author={Wischer,
Christian and Steinfelder, Christian and Homberg, Werner and Brosius, Alexander},
year={2021}, pages={012007} }'
chicago: 'Wischer, Christian, Christian Steinfelder, Werner Homberg, and Alexander
Brosius. “Joining with Friction Spun Joint Connectors – Manufacturing and Analysis.”
IOP Conference Series: Materials Science and Engineering 1157 (2021): 012007.
https://doi.org/10.1088/1757-899x/1157/1/012007.'
ieee: 'C. Wischer, C. Steinfelder, W. Homberg, and A. Brosius, “Joining with Friction
Spun Joint Connectors – Manufacturing and Analysis,” IOP Conference Series:
Materials Science and Engineering, vol. 1157, p. 012007, 2021, doi: 10.1088/1757-899x/1157/1/012007.'
mla: 'Wischer, Christian, et al. “Joining with Friction Spun Joint Connectors –
Manufacturing and Analysis.” IOP Conference Series: Materials Science and Engineering,
vol. 1157, 2021, p. 012007, doi:10.1088/1757-899x/1157/1/012007.'
short: 'C. Wischer, C. Steinfelder, W. Homberg, A. Brosius, IOP Conference Series:
Materials Science and Engineering 1157 (2021) 012007.'
date_created: 2022-03-28T12:46:21Z
date_updated: 2022-12-23T15:13:27Z
department:
- _id: '156'
- _id: '630'
doi: 10.1088/1757-899x/1157/1/012007
intvolume: ' 1157'
language:
- iso: eng
page: '012007'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: 'IOP Conference Series: Materials Science and Engineering'
status: public
title: Joining with Friction Spun Joint Connectors – Manufacturing and Analysis
type: journal_article
user_id: '14931'
volume: 1157
year: '2021'
...
---
_id: '30702'
author:
- first_name: Christian
full_name: Wischer, Christian
id: '72219'
last_name: Wischer
- first_name: Werner
full_name: Homberg, Werner
last_name: Homberg
citation:
ama: 'Wischer C, Homberg W. A contribution on versatile process chains: joining
with adaptive joining elements, formed by friction spinning. Production Engineering.
Published online 2021. doi:10.1007/s11740-021-01094-8'
apa: 'Wischer, C., & Homberg, W. (2021). A contribution on versatile process
chains: joining with adaptive joining elements, formed by friction spinning. Production
Engineering. https://doi.org/10.1007/s11740-021-01094-8'
bibtex: '@article{Wischer_Homberg_2021, title={A contribution on versatile process
chains: joining with adaptive joining elements, formed by friction spinning},
DOI={10.1007/s11740-021-01094-8},
journal={Production Engineering}, author={Wischer, Christian and Homberg, Werner},
year={2021} }'
chicago: 'Wischer, Christian, and Werner Homberg. “A Contribution on Versatile Process
Chains: Joining with Adaptive Joining Elements, Formed by Friction Spinning.”
Production Engineering, 2021. https://doi.org/10.1007/s11740-021-01094-8.'
ieee: 'C. Wischer and W. Homberg, “A contribution on versatile process chains: joining
with adaptive joining elements, formed by friction spinning,” Production Engineering,
2021, doi: 10.1007/s11740-021-01094-8.'
mla: 'Wischer, Christian, and Werner Homberg. “A Contribution on Versatile Process
Chains: Joining with Adaptive Joining Elements, Formed by Friction Spinning.”
Production Engineering, 2021, doi:10.1007/s11740-021-01094-8.'
short: C. Wischer, W. Homberg, Production Engineering (2021).
date_created: 2022-03-29T09:22:51Z
date_updated: 2022-12-23T15:33:08Z
department:
- _id: '156'
- _id: '630'
doi: 10.1007/s11740-021-01094-8
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: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
publication: Production Engineering
status: public
title: 'A contribution on versatile process chains: joining with adaptive joining
elements, formed by friction spinning'
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30698'
author:
- first_name: B.
full_name: Gröger, B.
last_name: Gröger
- first_name: D.
full_name: Köhler, D.
last_name: Köhler
- first_name: J.
full_name: Vorderbrüggen, J.
last_name: Vorderbrüggen
- first_name: J.
full_name: Troschitz, J.
last_name: Troschitz
- first_name: R.
full_name: Kupfer, R.
last_name: Kupfer
- first_name: G.
full_name: Meschut, G.
last_name: Meschut
- first_name: M.
full_name: Gude, M.
last_name: Gude
citation:
ama: Gröger B, Köhler D, Vorderbrüggen J, et al. Computed tomography investigation
of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic
sheets. Production Engineering. Published online 2021. doi:10.1007/s11740-021-01091-x
apa: Gröger, B., Köhler, D., Vorderbrüggen, J., Troschitz, J., Kupfer, R., Meschut,
G., & Gude, M. (2021). Computed tomography investigation of the material structure
in clinch joints in aluminium fibre-reinforced thermoplastic sheets. Production
Engineering. https://doi.org/10.1007/s11740-021-01091-x
bibtex: '@article{Gröger_Köhler_Vorderbrüggen_Troschitz_Kupfer_Meschut_Gude_2021,
title={Computed tomography investigation of the material structure in clinch joints
in aluminium fibre-reinforced thermoplastic sheets}, DOI={10.1007/s11740-021-01091-x},
journal={Production Engineering}, author={Gröger, B. and Köhler, D. and Vorderbrüggen,
J. and Troschitz, J. and Kupfer, R. and Meschut, G. and Gude, M.}, year={2021}
}'
chicago: Gröger, B., D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut,
and M. Gude. “Computed Tomography Investigation of the Material Structure in Clinch
Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production Engineering,
2021. https://doi.org/10.1007/s11740-021-01091-x.
ieee: 'B. Gröger et al., “Computed tomography investigation of the material
structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets,”
Production Engineering, 2021, doi: 10.1007/s11740-021-01091-x.'
mla: Gröger, B., et al. “Computed Tomography Investigation of the Material Structure
in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production
Engineering, 2021, doi:10.1007/s11740-021-01091-x.
short: B. Gröger, D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut,
M. Gude, Production Engineering (2021).
date_created: 2022-03-29T09:15:36Z
date_updated: 2023-01-02T11:18:51Z
department:
- _id: '157'
- _id: '630'
doi: 10.1007/s11740-021-01091-x
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: Production Engineering
status: public
title: Computed tomography investigation of the material structure in clinch joints
in aluminium fibre-reinforced thermoplastic sheets
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30701'
author:
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: J.
full_name: Popp, J.
last_name: Popp
- first_name: D.
full_name: Drummer, D.
last_name: Drummer
- first_name: M.
full_name: Merklein, M.
last_name: Merklein
citation:
ama: Römisch D, Popp J, Drummer D, Merklein M. Joining of CFRT-steel hybrid parts
via hole-forming and subsequent pin caulking. Production Engineering. Published
online 2021. doi:10.1007/s11740-021-01093-9
apa: Römisch, D., Popp, J., Drummer, D., & Merklein, M. (2021). Joining of CFRT-steel
hybrid parts via hole-forming and subsequent pin caulking. Production Engineering.
https://doi.org/10.1007/s11740-021-01093-9
bibtex: '@article{Römisch_Popp_Drummer_Merklein_2021, title={Joining of CFRT-steel
hybrid parts via hole-forming and subsequent pin caulking}, DOI={10.1007/s11740-021-01093-9},
journal={Production Engineering}, author={Römisch, D. and Popp, J. and Drummer,
D. and Merklein, M.}, year={2021} }'
chicago: Römisch, D., J. Popp, D. Drummer, and M. Merklein. “Joining of CFRT-Steel
Hybrid Parts via Hole-Forming and Subsequent Pin Caulking.” Production Engineering,
2021. https://doi.org/10.1007/s11740-021-01093-9.
ieee: 'D. Römisch, J. Popp, D. Drummer, and M. Merklein, “Joining of CFRT-steel
hybrid parts via hole-forming and subsequent pin caulking,” Production Engineering,
2021, doi: 10.1007/s11740-021-01093-9.'
mla: Römisch, D., et al. “Joining of CFRT-Steel Hybrid Parts via Hole-Forming and
Subsequent Pin Caulking.” Production Engineering, 2021, doi:10.1007/s11740-021-01093-9.
short: D. Römisch, J. Popp, D. Drummer, M. Merklein, Production Engineering (2021).
date_created: 2022-03-29T09:21:36Z
date_updated: 2023-01-02T11:20:14Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01093-9
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: Production Engineering
status: public
title: Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30697'
author:
- first_name: R.
full_name: Lafarge, R.
last_name: Lafarge
- first_name: A.
full_name: Wolf, A.
last_name: Wolf
- first_name: C.
full_name: Guilleaume, C.
last_name: Guilleaume
- first_name: A.
full_name: Brosius, A.
last_name: Brosius
citation:
ama: Lafarge R, Wolf A, Guilleaume C, Brosius A. A New Non-destructive Testing Method
Applied to Clinching. Minerals, Metals and Materials Series. Published
online 2021:1461. doi:10.1007/978-3-030-75381-8_121
apa: Lafarge, R., Wolf, A., Guilleaume, C., & Brosius, A. (2021). A New Non-destructive
Testing Method Applied to Clinching. Minerals, Metals and Materials Series,
1461. https://doi.org/10.1007/978-3-030-75381-8_121
bibtex: '@article{Lafarge_Wolf_Guilleaume_Brosius_2021, title={A New Non-destructive
Testing Method Applied to Clinching}, DOI={10.1007/978-3-030-75381-8_121},
journal={Minerals, Metals and Materials Series}, author={Lafarge, R. and Wolf,
A. and Guilleaume, C. and Brosius, A.}, year={2021}, pages={1461} }'
chicago: Lafarge, R., A. Wolf, C. Guilleaume, and A. Brosius. “A New Non-Destructive
Testing Method Applied to Clinching.” Minerals, Metals and Materials Series,
2021, 1461. https://doi.org/10.1007/978-3-030-75381-8_121.
ieee: 'R. Lafarge, A. Wolf, C. Guilleaume, and A. Brosius, “A New Non-destructive
Testing Method Applied to Clinching,” Minerals, Metals and Materials Series,
p. 1461, 2021, doi: 10.1007/978-3-030-75381-8_121.'
mla: Lafarge, R., et al. “A New Non-Destructive Testing Method Applied to Clinching.”
Minerals, Metals and Materials Series, 2021, p. 1461, doi:10.1007/978-3-030-75381-8_121.
short: R. Lafarge, A. Wolf, C. Guilleaume, A. Brosius, Minerals, Metals and Materials
Series (2021) 1461.
date_created: 2022-03-29T09:14:12Z
date_updated: 2023-01-02T11:20:45Z
department:
- _id: '630'
doi: 10.1007/978-3-030-75381-8_121
language:
- iso: eng
page: '1461'
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: Minerals, Metals and Materials Series
status: public
title: A New Non-destructive Testing Method Applied to Clinching
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30684'
abstract:
- lang: eng
text: Due to stricter emission targets in the mobility sector and the resulting
trend towards lightweight construction in order to reduce weight and consequently
emissions, multi-material systems that allow a material to be placed in the right
quantity and in the right place are becoming increasingly important. One major
challenge that is holding back the rapid and widespread use of multi-material
systems is the lack of adequate joining processes that are suitable for joining
dissimilar materials. Joining processes without auxiliary elements have the advantage
of a reduced assembly effort and no additional added weight. Conventional joining
processes without auxiliary elements, such as welding, clinching, or the use of
adhesives, reach their limits due to different mechanical properties and chemical
incompatibilities. A process with potential in the field of joining dissimilar
materials is joining without an auxiliary element using pin structures. However,
current pin manufacturing processes are mostly time-consuming or can only be integrated
barely into existing industrial manufacturing processes due to their specific
properties. For this reason, the present work investigates the production of single-
and multi-pin structures from high-strength dual-phase steel HCT590X + Z (DP600,
t0 = 1.5 mm) by cold extrusion directly out of the sheet metal. These structures
are subsequently joined with an aluminium sheet (EN AW-6014-T4, t0 = 1.5 mm) by
direct pin pressing. For a quantitative evaluation of the joint quality, tensile
shear tests are carried out and the influence of different pin heights, pin number,
and pin arrangements, as well as different joining strategies on the joint strength
is experimentally evaluated. It is proven that a single pin structure with a diameter
of 1.5 mm and an average height of 1.86 mm achieves a maximum tensile shear force
of 1025 N. The results reveal that the formation of a form-fit during direct pin
pressing is essential for the joint strength. By increasing the number of pins,
a linear increase in force could be demonstrated, which is independent of the
arrangement of the pin structures.
author:
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: M.
full_name: Kraus, M.
last_name: Kraus
- first_name: M.
full_name: Merklein, M.
last_name: Merklein
citation:
ama: Römisch D, Kraus M, Merklein M. Experimental study on joining by forming of
hct590x + z and en-aw 6014 sheets using cold extruded pin structures. Journal
of Manufacturing and Materials Processing. 2021;5:25. doi:10.3390/jmmp5010025
apa: Römisch, D., Kraus, M., & Merklein, M. (2021). Experimental study on joining
by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures.
Journal of Manufacturing and Materials Processing, 5, 25. https://doi.org/10.3390/jmmp5010025
bibtex: '@article{Römisch_Kraus_Merklein_2021, title={Experimental study on joining
by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures},
volume={5}, DOI={10.3390/jmmp5010025},
journal={Journal of Manufacturing and Materials Processing}, author={Römisch,
D. and Kraus, M. and Merklein, M.}, year={2021}, pages={25} }'
chicago: 'Römisch, D., M. Kraus, and M. Merklein. “Experimental Study on Joining
by Forming of Hct590x + z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.”
Journal of Manufacturing and Materials Processing 5 (2021): 25. https://doi.org/10.3390/jmmp5010025.'
ieee: 'D. Römisch, M. Kraus, and M. Merklein, “Experimental study on joining by
forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures,”
Journal of Manufacturing and Materials Processing, vol. 5, p. 25, 2021,
doi: 10.3390/jmmp5010025.'
mla: Römisch, D., et al. “Experimental Study on Joining by Forming of Hct590x +
z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.” Journal of Manufacturing
and Materials Processing, vol. 5, 2021, p. 25, doi:10.3390/jmmp5010025.
short: D. Römisch, M. Kraus, M. Merklein, Journal of Manufacturing and Materials
Processing 5 (2021) 25.
date_created: 2022-03-29T08:48:14Z
date_updated: 2023-01-02T11:47:27Z
department:
- _id: '630'
doi: 10.3390/jmmp5010025
intvolume: ' 5'
language:
- iso: eng
page: '25'
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 Manufacturing and Materials Processing
status: public
title: Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets
using cold extruded pin structures
type: journal_article
user_id: '14931'
volume: 5
year: '2021'
...
---
_id: '30682'
abstract:
- lang: eng
text: 'Lightweight constructions become more and more important, especially in the
mobility sector. In this industry, the increasingly strict regulations regarding
the emissions of carbon dioxide can be achieved to a certain extent by reducing
the vehicle weight. Thus, multi-material systems are used. Conventional joining
techniques reach their limits when joining different materials due to different
thermal expansion, unequal stiffness or chemical incompatibilities. This is why
additional joining elements or adhesives are used. These must be viewed critically
regarding a lightweight and resource-efficient production, since they add weight
or complicate the recycling process of these components. Consequently, there is
a great and growing need for new versatile joining technologies in order to overcome
these challenges and to be able to react to changing process parameters and boundary
conditions. Joining without an auxiliary element using pin structures formed directly
from the sheet metal plane is one approach to meet these challenges. These pin
structures are then joined by direct pressing into the joining partner. This is
possible with a variety of material combinations, but is advantageous with regard
to continuous fibre-reinforced thermoplastic composites (CFRTP), as the fibres
do not have to be cut when joining CFRTP using pin structures. In this paper,
the formability of pin structures made of a dual-phase steel DP600 (HCT590X +
Z) is investigated. The extruded pin structures are joined by direct pin pressing
with an EN AW-6014 to form tensile shear specimens. Different joining strategies
are investigated to compare their influence on the joint strength. The results
have shown that it is feasible to form suitable pins from a DP600 dual-phase steel
to produce reliable connections with an aluminium sheet joined by direct pin pressing. '
author:
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: M.
full_name: Kraus, M.
last_name: Kraus
- first_name: M.
full_name: Merklein, M.
last_name: Merklein
citation:
ama: Römisch D, Kraus M, Merklein M. Investigation of Different Joining by Forming
Strategies when Connecting Different Metals without Auxiliary Elements. Key
Engineering Materials. 2021;883:19-26. doi:10.4028/www.scientific.net/kem.883.19
apa: Römisch, D., Kraus, M., & Merklein, M. (2021). Investigation of Different
Joining by Forming Strategies when Connecting Different Metals without Auxiliary
Elements. Key Engineering Materials, 883, 19–26. https://doi.org/10.4028/www.scientific.net/kem.883.19
bibtex: '@article{Römisch_Kraus_Merklein_2021, title={Investigation of Different
Joining by Forming Strategies when Connecting Different Metals without Auxiliary
Elements}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.19},
journal={Key Engineering Materials}, author={Römisch, D. and Kraus, M. and Merklein,
M.}, year={2021}, pages={19–26} }'
chicago: 'Römisch, D., M. Kraus, and M. Merklein. “Investigation of Different Joining
by Forming Strategies When Connecting Different Metals without Auxiliary Elements.”
Key Engineering Materials 883 (2021): 19–26. https://doi.org/10.4028/www.scientific.net/kem.883.19.'
ieee: 'D. Römisch, M. Kraus, and M. Merklein, “Investigation of Different Joining
by Forming Strategies when Connecting Different Metals without Auxiliary Elements,”
Key Engineering Materials, vol. 883, pp. 19–26, 2021, doi: 10.4028/www.scientific.net/kem.883.19.'
mla: Römisch, D., et al. “Investigation of Different Joining by Forming Strategies
When Connecting Different Metals without Auxiliary Elements.” Key Engineering
Materials, vol. 883, 2021, pp. 19–26, doi:10.4028/www.scientific.net/kem.883.19.
short: D. Römisch, M. Kraus, M. Merklein, Key Engineering Materials 883 (2021) 19–26.
date_created: 2022-03-29T08:45:16Z
date_updated: 2023-01-02T11:47:47Z
department:
- _id: '630'
doi: 10.4028/www.scientific.net/kem.883.19
intvolume: ' 883'
language:
- iso: eng
page: 19-26
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: Key Engineering Materials
status: public
title: Investigation of Different Joining by Forming Strategies when Connecting Different
Metals without Auxiliary Elements
type: journal_article
user_id: '14931'
volume: 883
year: '2021'
...
---
_id: '30718'
abstract:
- lang: eng
text: The growing demands of resource-saving processes and products are leading
to increasing importance of lightweight construction for the automotive industry.
One approach is multi-material design, which uses high-strength steels and aluminium
alloys in the production of vehicle bodies. Therefore, reliable processes for
joining components with different mechanical properties and geometries are necessary.
As conventional joining processes reach their limits, new versatile processes
and methods are required which can adapt to different process conditions and disturbance
variables. A widely used joining process to join different materials is self-piercing
riveting as a joining by forming method, however it is characterised as inflexible
to changing process conditions due to a linear process kinematic and rigid dies.
An approach to extend the process limits is the application of a tumbling kinematic
for the punch. Thus, an adapted tumbling strategy can be used to influence the
joining process and to achieve a controlled material flow in order to manufacture
tailored joints. For the fundamental investigation of the process, numerical investigations
are necessary. In order to achieve high model quality a precise material modelling
is crucial. Therefore, a characterisation of the materials HCT590X+Z and EN AW-6014
as typical materials of multi-material mixes and the rivet material 38B2 is performed.
Due to the different stress conditions during tumbling self-piercing riveting
suitable characterisation methods are selected and carried out.
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. Material characterisation methods for a tumbling self-piercing
riveting process. ESAFORM 2021. Published online 2021. doi:10.25518/esaform21.398
apa: Wituschek, S., & Lechner, M. (2021). Material characterisation methods
for a tumbling self-piercing riveting process. ESAFORM 2021. https://doi.org/10.25518/esaform21.398
bibtex: '@article{Wituschek_Lechner_2021, title={Material characterisation methods
for a tumbling self-piercing riveting process}, DOI={10.25518/esaform21.398},
journal={ESAFORM 2021}, author={Wituschek, S. and Lechner, M.}, year={2021} }'
chicago: Wituschek, S., and M. Lechner. “Material Characterisation Methods for a
Tumbling Self-Piercing Riveting Process.” ESAFORM 2021, 2021. https://doi.org/10.25518/esaform21.398.
ieee: 'S. Wituschek and M. Lechner, “Material characterisation methods for a tumbling
self-piercing riveting process,” ESAFORM 2021, 2021, doi: 10.25518/esaform21.398.'
mla: Wituschek, S., and M. Lechner. “Material Characterisation Methods for a Tumbling
Self-Piercing Riveting Process.” ESAFORM 2021, 2021, doi:10.25518/esaform21.398.
short: S. Wituschek, M. Lechner, ESAFORM 2021 (2021).
date_created: 2022-03-29T10:34:25Z
date_updated: 2023-01-02T11:47:03Z
department:
- _id: '630'
doi: 10.25518/esaform21.398
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: ESAFORM 2021
status: public
title: Material characterisation methods for a tumbling self-piercing riveting process
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30683'
abstract:
- lang: eng
text: 'When joining lightweight parts of various materials, clinching is a cost
efficient solution. In a production line, the quality of a clinch point is primarily
controlled by measurement of dimensions, which are accessible from outside. However,
methods such as visual testing and measuring the bottom thickness as well as the
outer diameter are not able to deliver any information about the most significant
geometrical characteristic of the clinch point, neck thickness and undercut. Furthermore,
ex-situ destructive methods such as microsectioning cannot detect elastic deformations
and cracks that close after unloading. In order to exceed the current limits,
a new non-destructive in-situ testing method for the clinching process is necessary.
This work proposes a concept to characterize clinch points in-situ by combining
two complementary non-destructive methods, namely, computed tomography (CT) and
ultrasonic testing. Firstly, clinch points with different geometrical characteristics
are analysed experimentally using ex-situ CT to get a highly spatially resolved
3D-image of the object. In this context, highly X-ray attenuating materials enhancing
the visibility of the sheet-sheet interface are investigated. Secondly, the test
specimens are modelled using finite element method (FEM) and a transient dynamic
analysis (TDA) is conducted to study the effect of the geometrical differences
on the deformation energy and to qualify the TDA as a fast in-situ non-destructive
method for characterizing clinch points at high temporal resolution. '
author:
- first_name: D.
full_name: Köhler, D.
last_name: Köhler
- first_name: B.
full_name: Sadeghian, B.
last_name: Sadeghian
- first_name: R.
full_name: Kupfer, R.
last_name: Kupfer
- first_name: J.
full_name: Troschitz, J.
last_name: Troschitz
- 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, Kupfer R, Troschitz J, Gude M, Brosius A. A Method for
Characterization of Geometric Deviations in Clinch Points with Computed Tomography
and Transient Dynamic Analysis. Key Engineering Materials. 2021;883:89-96.
doi:10.4028/www.scientific.net/kem.883.89
apa: Köhler, D., Sadeghian, B., Kupfer, R., Troschitz, J., Gude, M., & Brosius,
A. (2021). A Method for Characterization of Geometric Deviations in Clinch Points
with Computed Tomography and Transient Dynamic Analysis. Key Engineering Materials,
883, 89–96. https://doi.org/10.4028/www.scientific.net/kem.883.89
bibtex: '@article{Köhler_Sadeghian_Kupfer_Troschitz_Gude_Brosius_2021, title={A
Method for Characterization of Geometric Deviations in Clinch Points with Computed
Tomography and Transient Dynamic Analysis}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.89},
journal={Key Engineering Materials}, author={Köhler, D. and Sadeghian, B. and
Kupfer, R. and Troschitz, J. and Gude, M. and Brosius, A.}, year={2021}, pages={89–96}
}'
chicago: 'Köhler, D., B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius.
“A Method for Characterization of Geometric Deviations in Clinch Points with Computed
Tomography and Transient Dynamic Analysis.” Key Engineering Materials 883
(2021): 89–96. https://doi.org/10.4028/www.scientific.net/kem.883.89.'
ieee: 'D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius,
“A Method for Characterization of Geometric Deviations in Clinch Points with Computed
Tomography and Transient Dynamic Analysis,” Key Engineering Materials,
vol. 883, pp. 89–96, 2021, doi: 10.4028/www.scientific.net/kem.883.89.'
mla: Köhler, D., et al. “A Method for Characterization of Geometric Deviations in
Clinch Points with Computed Tomography and Transient Dynamic Analysis.” Key
Engineering Materials, vol. 883, 2021, pp. 89–96, doi:10.4028/www.scientific.net/kem.883.89.
short: D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, A. Brosius, Key
Engineering Materials 883 (2021) 89–96.
date_created: 2022-03-29T08:46:40Z
date_updated: 2023-01-02T11:48:16Z
department:
- _id: '630'
doi: 10.4028/www.scientific.net/kem.883.89
intvolume: ' 883'
language:
- iso: eng
page: 89-96
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
status: public
title: A Method for Characterization of Geometric Deviations in Clinch Points with
Computed Tomography and Transient Dynamic Analysis
type: journal_article
user_id: '14931'
volume: 883
year: '2021'
...
---
_id: '30685'
abstract:
- lang: eng
text: Joints are an essential part of modern (lightweight) structures in a broad
variety of applications. The reason for this is the rapidly increasing number
of different material combinations needing to be joined in application areas like
the automotive industry. It is currently common to use numerous auxiliary or standardized
elements instead of individually adapted joining elements. This leads to a large
number of different joining elements per product and thus to high costs. An innovative
approach to overcoming this issue is the design, manufacture and setting of joint-specific
joining elements. A good candidate for the manufacture of adapted joining elements
of this type is the so-called friction spinning process. The joining elements
formed in this way can be specifically adapted to the application in question
in terms of both shape and mechanical properties. The part geometry required for
the properties of a given joint is formed using a universal forming tool. This
makes it possible to form a wide variety of sub geometries for the auxiliary joining
part as a function of the prevailing joint condition, using a single forming tool
and starting from the same semi-finished bar material. By applying different process
strategies for the rotational speed and feed rate during the forming operation,
the same part geometry can even be given different local mechanical properties.
The following contribution presents the results of ongoing research work and includes
the process concept, process properties, tooling and the results of experimental
investigations into the joining of two sheet metal parts with help of this new
joining process.
author:
- first_name: E.
full_name: Wiens, E.
last_name: Wiens
- first_name: C.
full_name: Wischer, C.
last_name: Wischer
- first_name: W.
full_name: Homberg, W.
last_name: Homberg
citation:
ama: Wiens E, Wischer C, Homberg W. Development of a novel adaptive joining technology
employing friction-spun joint connectors (FSJC). ESAFORM. Published online
2021:4682. doi:10.25518/esaform21.4682
apa: Wiens, E., Wischer, C., & Homberg, W. (2021). Development of a novel adaptive
joining technology employing friction-spun joint connectors (FSJC). ESAFORM,
4682. https://doi.org/10.25518/esaform21.4682
bibtex: '@article{Wiens_Wischer_Homberg_2021, title={Development of a novel adaptive
joining technology employing friction-spun joint connectors (FSJC)}, DOI={10.25518/esaform21.4682},
journal={ESAFORM}, author={Wiens, E. and Wischer, C. and Homberg, W.}, year={2021},
pages={4682} }'
chicago: Wiens, E., C. Wischer, and W. Homberg. “Development of a Novel Adaptive
Joining Technology Employing Friction-Spun Joint Connectors (FSJC).” ESAFORM,
2021, 4682. https://doi.org/10.25518/esaform21.4682.
ieee: 'E. Wiens, C. Wischer, and W. Homberg, “Development of a novel adaptive joining
technology employing friction-spun joint connectors (FSJC),” ESAFORM, p.
4682, 2021, doi: 10.25518/esaform21.4682.'
mla: Wiens, E., et al. “Development of a Novel Adaptive Joining Technology Employing
Friction-Spun Joint Connectors (FSJC).” ESAFORM, 2021, p. 4682, doi:10.25518/esaform21.4682.
short: E. Wiens, C. Wischer, W. Homberg, ESAFORM (2021) 4682.
date_created: 2022-03-29T08:49:33Z
date_updated: 2023-01-02T11:49:31Z
department:
- _id: '630'
doi: 10.25518/esaform21.4682
language:
- iso: eng
page: '4682'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
publication: ESAFORM
status: public
title: Development of a novel adaptive joining technology employing friction-spun
joint connectors (FSJC)
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '24537'
article_number: '012005'
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: M
full_name: Busch, M
last_name: Busch
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: T
full_name: Hausotte, T
last_name: Hausotte
citation:
ama: 'Neuser M, Kappe F, Busch M, et al. Joining suitability of cast aluminium for
self-piercing riveting. IOP Conference Series: Materials Science and Engineering.
Published online 2021. doi:10.1088/1757-899x/1157/1/012005'
apa: 'Neuser, M., Kappe, F., Busch, M., Grydin, O., Bobbert, M., Schaper, M., Meschut,
G., & Hausotte, T. (2021). Joining suitability of cast aluminium for self-piercing
riveting. IOP Conference Series: Materials Science and Engineering, Article
012005. https://doi.org/10.1088/1757-899x/1157/1/012005'
bibtex: '@article{Neuser_Kappe_Busch_Grydin_Bobbert_Schaper_Meschut_Hausotte_2021,
title={Joining suitability of cast aluminium for self-piercing riveting}, DOI={10.1088/1757-899x/1157/1/012005},
number={012005}, journal={IOP Conference Series: Materials Science and Engineering},
author={Neuser, Moritz and Kappe, Fabian and Busch, M and Grydin, Olexandr and
Bobbert, Mathias and Schaper, Mirko and Meschut, Gerson and Hausotte, T}, year={2021}
}'
chicago: 'Neuser, Moritz, Fabian Kappe, M Busch, Olexandr Grydin, Mathias Bobbert,
Mirko Schaper, Gerson Meschut, and T Hausotte. “Joining Suitability of Cast Aluminium
for Self-Piercing Riveting.” IOP Conference Series: Materials Science and Engineering,
2021. https://doi.org/10.1088/1757-899x/1157/1/012005.'
ieee: 'M. Neuser et al., “Joining suitability of cast aluminium for self-piercing
riveting,” IOP Conference Series: Materials Science and Engineering, Art.
no. 012005, 2021, doi: 10.1088/1757-899x/1157/1/012005.'
mla: 'Neuser, Moritz, et al. “Joining Suitability of Cast Aluminium for Self-Piercing
Riveting.” IOP Conference Series: Materials Science and Engineering, 012005,
2021, doi:10.1088/1757-899x/1157/1/012005.'
short: 'M. Neuser, F. Kappe, M. Busch, O. Grydin, M. Bobbert, M. Schaper, G. Meschut,
T. Hausotte, IOP Conference Series: Materials Science and Engineering (2021).'
date_created: 2021-09-15T18:22:16Z
date_updated: 2024-03-14T15:23:15Z
department:
- _id: '9'
- _id: '158'
- _id: '157'
- _id: '630'
doi: 10.1088/1757-899x/1157/1/012005
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: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: 'IOP Conference Series: Materials Science and Engineering'
publication_identifier:
issn:
- 1757-8981
- 1757-899X
publication_status: published
quality_controlled: '1'
status: public
title: Joining suitability of cast aluminium for self-piercing riveting
type: journal_article
user_id: '32340'
year: '2021'
...
---
_id: '38517'
author:
- first_name: Julian
full_name: Popp, Julian
last_name: Popp
- first_name: Tobias
full_name: Kleffel, Tobias
last_name: Kleffel
- first_name: Dietmar
full_name: Drummer, Dietmar
last_name: Drummer
citation:
ama: Popp J, Kleffel T, Drummer D. Influence of pin geometry on the joint strength
of CFRT-metal hybrid parts with metallic pins. Joining Plastics. 2021;15(3-4).
apa: Popp, J., Kleffel, T., & Drummer, D. (2021). Influence of pin geometry
on the joint strength of CFRT-metal hybrid parts with metallic pins. Joining
Plastics, 15(3–4).
bibtex: '@article{Popp_Kleffel_Drummer_2021, title={Influence of pin geometry on
the joint strength of CFRT-metal hybrid parts with metallic pins}, volume={15},
number={3–4}, journal={Joining Plastics}, author={Popp, Julian and Kleffel, Tobias
and Drummer, Dietmar}, year={2021} }'
chicago: Popp, Julian, Tobias Kleffel, and Dietmar Drummer. “Influence of Pin Geometry
on the Joint Strength of CFRT-Metal Hybrid Parts with Metallic Pins.” Joining
Plastics 15, no. 3–4 (2021).
ieee: J. Popp, T. Kleffel, and D. Drummer, “Influence of pin geometry on the joint
strength of CFRT-metal hybrid parts with metallic pins,” Joining Plastics,
vol. 15, no. 3–4, 2021.
mla: Popp, Julian, et al. “Influence of Pin Geometry on the Joint Strength of CFRT-Metal
Hybrid Parts with Metallic Pins.” Joining Plastics, vol. 15, no. 3–4, 2021.
short: J. Popp, T. Kleffel, D. Drummer, Joining Plastics 15 (2021).
date_created: 2023-01-23T20:31:42Z
date_updated: 2023-01-23T20:36:47Z
department:
- _id: '630'
intvolume: ' 15'
issue: 3-4
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: Joining Plastics
status: public
title: Influence of pin geometry on the joint strength of CFRT-metal hybrid parts
with metallic pins
type: journal_article
user_id: '7850'
volume: 15
year: '2021'
...
---
_id: '34222'
abstract:
- lang: eng
text: Driven by the CO2-emission law by the European government and the increasing
costs for raw materials as well as energy, the automotive industry is increasingly
using multi-material constructions. This leads to a continuous increase in the
use of mechanical joining techniques and especially the self-piercing riveting
is of particular importance. The reason for this is the wide range of joining
possibilities as well as the high load-bearing capacities of the joints. To be
able to react to changing boundary conditions, like material thickness or strength
variation of the sheets, research work is crucial with regard to the increase
of versatility. In this paper, a numerical study of the influences on the selfpiercing
riveting process is presented. For this purpose, the influence of different process
parameters such as rivet length and die depth on various quality-relevant characteristics
were investigated. With the help of the design of experiment, significant influences
were determined and interactions between the individual parameters are shown.
author:
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Vadim
full_name: Sartisson, Vadim
last_name: Sartisson
- 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
citation:
ama: 'Kappe F, Bielak CR, Sartisson V, Bobbert M, Meschut G. Influence of rivet
length on joint formation on self-piercing riveting process considering further
process parameters. In: ESAFORM 2021. University of Liege; 2021. doi:10.25518/esaform21.4277'
apa: Kappe, F., Bielak, C. R., Sartisson, V., Bobbert, M., & Meschut, G. (2021).
Influence of rivet length on joint formation on self-piercing riveting process
considering further process parameters. ESAFORM 2021. https://doi.org/10.25518/esaform21.4277
bibtex: '@inproceedings{Kappe_Bielak_Sartisson_Bobbert_Meschut_2021, title={Influence
of rivet length on joint formation on self-piercing riveting process considering
further process parameters}, DOI={10.25518/esaform21.4277},
booktitle={ESAFORM 2021}, publisher={University of Liege}, author={Kappe, Fabian
and Bielak, Christian Roman and Sartisson, Vadim and Bobbert, Mathias and Meschut,
Gerson}, year={2021} }'
chicago: Kappe, Fabian, Christian Roman Bielak, Vadim Sartisson, Mathias Bobbert,
and Gerson Meschut. “Influence of rivet length on joint formation on self-piercing
riveting process considering further process parameters.” In ESAFORM 2021.
University of Liege, 2021. https://doi.org/10.25518/esaform21.4277.
ieee: 'F. Kappe, C. R. Bielak, V. Sartisson, M. Bobbert, and G. Meschut, “Influence
of rivet length on joint formation on self-piercing riveting process considering
further process parameters,” 2021, doi: 10.25518/esaform21.4277.'
mla: Kappe, Fabian, et al. “Influence of rivet length on joint formation on self-piercing
riveting process considering further process parameters.” ESAFORM 2021,
University of Liege, 2021, doi:10.25518/esaform21.4277.
short: 'F. Kappe, C.R. Bielak, V. Sartisson, M. Bobbert, G. Meschut, in: ESAFORM
2021, University of Liege, 2021.'
date_created: 2022-12-05T21:45:13Z
date_updated: 2023-04-27T08:52:48Z
department:
- _id: '630'
- _id: '157'
doi: 10.25518/esaform21.4277
language:
- iso: fre
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: ESAFORM 2021
publication_status: published
publisher: University of Liege
quality_controlled: '1'
status: public
title: Influence of rivet length on joint formation on self-piercing riveting process
considering further process parameters
type: conference
user_id: '66459'
year: '2021'
...
---
_id: '22798'
abstract:
- lang: eng
text: The predictive quality of numerical simulations for mechanical joining processes
depends on the implemented material model, especially regarding the plasticity
of the joining parts. Therefore, experimental material characterization processes
are conducted to determine the material properties of sheet metal and generate
flow curves. In this regard, there are a number of procedures which are accompanied
by varying experimental efforts. This paper presents various methods of determining
flow curves for HCT590X as well as EN AW-6014, including varying specimen geometries
and diverse hardening laws for extrapolation procedures. The flow curves thus
generated are compared considering the variety of plastic strains occurring in
mechanical joining processes. The material data generated are implemented in simulation
models for the joining technologies, clinching and self-piercing riveting. The
influence of the varied methods on the predictive accuracy of the simulation model
is analysed. The evaluation of the differing flow curves is achieved by comparing
the geometric formation of the joints and the required joining forces of the processes
with experimentally investigated joints.
author:
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- 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
citation:
ama: Böhnke M, Kappe F, Bobbert M, Meschut G. Influence of various procedures for
the determination of flow curves on the predictive accuracy of numerical simulations
for mechanical joining processes. Materials Testing. 2021;63(6):493-500.
doi:10.1515/mt-2020-0082
apa: Böhnke, M., Kappe, F., Bobbert, M., & Meschut, G. (2021). Influence of
various procedures for the determination of flow curves on the predictive accuracy
of numerical simulations for mechanical joining processes. Materials Testing,
63(6), 493–500. https://doi.org/10.1515/mt-2020-0082
bibtex: '@article{Böhnke_Kappe_Bobbert_Meschut_2021, title={Influence of various
procedures for the determination of flow curves on the predictive accuracy of
numerical simulations for mechanical joining processes}, volume={63}, DOI={10.1515/mt-2020-0082}, number={6},
journal={Materials Testing}, publisher={De Gruyter}, author={Böhnke, Max and Kappe,
Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2021}, pages={493–500}
}'
chicago: 'Böhnke, Max, Fabian Kappe, Mathias Bobbert, and Gerson Meschut. “Influence
of Various Procedures for the Determination of Flow Curves on the Predictive Accuracy
of Numerical Simulations for Mechanical Joining Processes.” Materials Testing
63, no. 6 (2021): 493–500. https://doi.org/10.1515/mt-2020-0082.'
ieee: 'M. Böhnke, F. Kappe, M. Bobbert, and G. Meschut, “Influence of various procedures
for the determination of flow curves on the predictive accuracy of numerical simulations
for mechanical joining processes,” Materials Testing, vol. 63, no. 6, pp.
493–500, 2021, doi: 10.1515/mt-2020-0082.'
mla: Böhnke, Max, et al. “Influence of Various Procedures for the Determination
of Flow Curves on the Predictive Accuracy of Numerical Simulations for Mechanical
Joining Processes.” Materials Testing, vol. 63, no. 6, De Gruyter, 2021,
pp. 493–500, doi:10.1515/mt-2020-0082.
short: M. Böhnke, F. Kappe, M. Bobbert, G. Meschut, Materials Testing 63 (2021)
493–500.
date_created: 2021-07-22T11:27:37Z
date_updated: 2023-04-27T08:53:22Z
department:
- _id: '157'
- _id: '630'
doi: 10.1515/mt-2020-0082
intvolume: ' 63'
issue: '6'
language:
- iso: eng
page: 493-500
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Materials Testing
publication_identifier:
issn:
- 2195-8572
- 0025-5300
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
status: public
title: Influence of various procedures for the determination of flow curves on the
predictive accuracy of numerical simulations for mechanical joining processes
type: journal_article
user_id: '66459'
volume: 63
year: '2021'
...
---
_id: '34226'
abstract:
- lang: eng
text: The increasing use of multi-material constructions lead to a continuous increase
in the use of mechanical joining techniques due to the wide range of joining possibilities
as well as the high load-bearing capacities of the joints. Nevertheless, the currently
rigid tool systems are not able to react to changing boundary conditions, like
changing the material-geometry-combination. Therefore research work is crucial
with regard to versatile joining systems. In this paper, a new approach for a
versatile self-piercing riveting process considering the joining system as well
as the auxiliary joining part is presented.
author:
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- 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
citation:
ama: 'Kappe F, Bobbert M, Meschut G. New Approach for Versatile Self Piercing Riveting:
Joining System and Auxiliary Part. Key Engineering Materials. 2021;883:3-10.
doi:10.4028/www.scientific.net/kem.883.3'
apa: 'Kappe, F., Bobbert, M., & Meschut, G. (2021). New Approach for Versatile
Self Piercing Riveting: Joining System and Auxiliary Part. Key Engineering
Materials, 883, 3–10. https://doi.org/10.4028/www.scientific.net/kem.883.3'
bibtex: '@article{Kappe_Bobbert_Meschut_2021, title={New Approach for Versatile
Self Piercing Riveting: Joining System and Auxiliary Part}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.3},
journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2021},
pages={3–10} }'
chicago: 'Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “New Approach for
Versatile Self Piercing Riveting: Joining System and Auxiliary Part.” Key Engineering
Materials 883 (2021): 3–10. https://doi.org/10.4028/www.scientific.net/kem.883.3.'
ieee: 'F. Kappe, M. Bobbert, and G. Meschut, “New Approach for Versatile Self Piercing
Riveting: Joining System and Auxiliary Part,” Key Engineering Materials,
vol. 883, pp. 3–10, 2021, doi: 10.4028/www.scientific.net/kem.883.3.'
mla: 'Kappe, Fabian, et al. “New Approach for Versatile Self Piercing Riveting:
Joining System and Auxiliary Part.” Key Engineering Materials, vol. 883,
Trans Tech Publications, Ltd., 2021, pp. 3–10, doi:10.4028/www.scientific.net/kem.883.3.'
short: F. Kappe, M. Bobbert, G. Meschut, Key Engineering Materials 883 (2021) 3–10.
date_created: 2022-12-05T21:54:38Z
date_updated: 2023-04-27T08:52:59Z
department:
- _id: '630'
- _id: '157'
doi: 10.4028/www.scientific.net/kem.883.3
intvolume: ' 883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 3-10
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: Key Engineering Materials
publication_identifier:
issn:
- 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
quality_controlled: '1'
status: public
title: 'New Approach for Versatile Self Piercing Riveting: Joining System and Auxiliary
Part'
type: journal_article
user_id: '66459'
volume: 883
year: '2021'
...
---
_id: '30200'
author:
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
citation:
ama: Wituschek S, Kappe F, Lechner M. Investigation of the influence of varying
tumbling strategies on a tumbling self-piercing riveting process. Production
Engineering. Published online 2021. doi:10.1007/s11740-021-01099-3
apa: Wituschek, S., Kappe, F., & Lechner, M. (2021). Investigation of the influence
of varying tumbling strategies on a tumbling self-piercing riveting process. Production
Engineering. https://doi.org/10.1007/s11740-021-01099-3
bibtex: '@article{Wituschek_Kappe_Lechner_2021, title={Investigation of the influence
of varying tumbling strategies on a tumbling self-piercing riveting process},
DOI={10.1007/s11740-021-01099-3},
journal={Production Engineering}, author={Wituschek, Simon and Kappe, Fabian and
Lechner, Michael}, year={2021} }'
chicago: Wituschek, Simon, Fabian Kappe, and Michael Lechner. “Investigation of
the Influence of Varying Tumbling Strategies on a Tumbling Self-Piercing Riveting
Process.” Production Engineering, 2021. https://doi.org/10.1007/s11740-021-01099-3.
ieee: 'S. Wituschek, F. Kappe, and M. Lechner, “Investigation of the influence of
varying tumbling strategies on a tumbling self-piercing riveting process,” Production
Engineering, 2021, doi: 10.1007/s11740-021-01099-3.'
mla: Wituschek, Simon, et al. “Investigation of the Influence of Varying Tumbling
Strategies on a Tumbling Self-Piercing Riveting Process.” Production Engineering,
2021, doi:10.1007/s11740-021-01099-3.
short: S. Wituschek, F. Kappe, M. Lechner, Production Engineering (2021).
date_created: 2022-03-03T10:08:47Z
date_updated: 2023-04-27T08:54:09Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01099-3
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
quality_controlled: '1'
status: public
title: Investigation of the influence of varying tumbling strategies on a tumbling
self-piercing riveting process
type: journal_article
user_id: '66459'
year: '2021'
...
---
_id: '26082'
article_number: '100060'
author:
- first_name: Christian
full_name: Wischer, Christian
id: '72219'
last_name: Wischer
- first_name: Eugen
full_name: Wiens, Eugen
id: '7888'
last_name: Wiens
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: Wischer C, Wiens E, Homberg W. Joining with versatile joining elements formed
by friction spinning. Journal of Advanced Joining Processes. 2021;3. doi:10.1016/j.jajp.2021.100060
apa: Wischer, C., Wiens, E., & Homberg, W. (2021). Joining with versatile joining
elements formed by friction spinning. Journal of Advanced Joining Processes,
3, Article 100060. https://doi.org/10.1016/j.jajp.2021.100060
bibtex: '@article{Wischer_Wiens_Homberg_2021, title={Joining with versatile joining
elements formed by friction spinning}, volume={3}, DOI={10.1016/j.jajp.2021.100060},
number={100060}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier},
author={Wischer, Christian and Wiens, Eugen and Homberg, Werner}, year={2021}
}'
chicago: Wischer, Christian, Eugen Wiens, and Werner Homberg. “Joining with Versatile
Joining Elements Formed by Friction Spinning.” Journal of Advanced Joining
Processes 3 (2021). https://doi.org/10.1016/j.jajp.2021.100060.
ieee: 'C. Wischer, E. Wiens, and W. Homberg, “Joining with versatile joining elements
formed by friction spinning,” Journal of Advanced Joining Processes, vol.
3, Art. no. 100060, 2021, doi: 10.1016/j.jajp.2021.100060.'
mla: Wischer, Christian, et al. “Joining with Versatile Joining Elements Formed
by Friction Spinning.” Journal of Advanced Joining Processes, vol. 3, 100060,
Elsevier, 2021, doi:10.1016/j.jajp.2021.100060.
short: C. Wischer, E. Wiens, W. Homberg, Journal of Advanced Joining Processes 3
(2021).
date_created: 2021-10-12T11:55:27Z
date_updated: 2023-05-05T11:08:54Z
department:
- _id: '9'
- _id: '630'
- _id: '156'
doi: 10.1016/j.jajp.2021.100060
intvolume: ' 3'
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: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Joining with versatile joining elements formed by friction spinning
type: journal_article
user_id: '7888'
volume: 3
year: '2021'
...
---
_id: '51202'
abstract:
- lang: eng
text: When joining lightweight parts of various materials, clinching is
a cost efficient solution. In a production line, the quality of a clinch point
is primarily controlled by measurement of dimensions, which are accessible from
outside. However, methods such as visual testing and measuring the bottom thickness
as well as the outer diameter are not able to deliver any information about the
most significant geometrical characteristic of the clinch point, neck thickness
and undercut. Furthermore, ex-situ destructive methods such as microsectioning
cannot detect elastic deformations and cracks that close after unloading. In order
to exceed the current limits, a new non-destructive in-situ testing method for
the clinching process is necessary. This work proposes a concept to characterize
clinch points in-situ by combining two complementary non-destructive methods,
namely, computed tomography (CT) and ultrasonic testing. Firstly, clinch points
with different geometrical characteristics are analysed experimentally using ex-situ
CT to get a highly spatially resolved 3D-image of the object. In this context,
highly X-ray attenuating materials enhancing the visibility of the sheet-sheet
interface are investigated. Secondly, the test specimens are modelled using finite
element method (FEM) and a transient dynamic analysis (TDA) is conducted to study
the effect of the geometrical differences on the deformation energy and to qualify
the TDA as a fast in-situ non-destructive method for characterizing clinch points
at high temporal resolution.
author:
- first_name: Daniel
full_name: Köhler, Daniel
last_name: Köhler
- first_name: Behdad
full_name: Sadeghian, Behdad
last_name: Sadeghian
- 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
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: Köhler D, Sadeghian B, Kupfer R, Troschitz J, Gude M, Brosius A. A Method for
Characterization of Geometric Deviations in Clinch Points with Computed Tomography
and Transient Dynamic Analysis. Key Engineering Materials. 2021;883:89-96.
doi:10.4028/www.scientific.net/kem.883.89
apa: Köhler, D., Sadeghian, B., Kupfer, R., Troschitz, J., Gude, M., & Brosius,
A. (2021). A Method for Characterization of Geometric Deviations in Clinch Points
with Computed Tomography and Transient Dynamic Analysis. Key Engineering Materials,
883, 89–96. https://doi.org/10.4028/www.scientific.net/kem.883.89
bibtex: '@article{Köhler_Sadeghian_Kupfer_Troschitz_Gude_Brosius_2021, title={A
Method for Characterization of Geometric Deviations in Clinch Points with Computed
Tomography and Transient Dynamic Analysis}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.89},
journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
author={Köhler, Daniel and Sadeghian, Behdad and Kupfer, Robert and Troschitz,
Juliane and Gude, Maik and Brosius, Alexander}, year={2021}, pages={89–96} }'
chicago: 'Köhler, Daniel, Behdad Sadeghian, Robert Kupfer, Juliane Troschitz, Maik
Gude, and Alexander Brosius. “A Method for Characterization of Geometric Deviations
in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” Key
Engineering Materials 883 (2021): 89–96. https://doi.org/10.4028/www.scientific.net/kem.883.89.'
ieee: 'D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius,
“A Method for Characterization of Geometric Deviations in Clinch Points with Computed
Tomography and Transient Dynamic Analysis,” Key Engineering Materials,
vol. 883, pp. 89–96, 2021, doi: 10.4028/www.scientific.net/kem.883.89.'
mla: Köhler, Daniel, et al. “A Method for Characterization of Geometric Deviations
in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” Key
Engineering Materials, vol. 883, Trans Tech Publications, Ltd., 2021, pp.
89–96, doi:10.4028/www.scientific.net/kem.883.89.
short: D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, A. Brosius, Key
Engineering Materials 883 (2021) 89–96.
date_created: 2024-02-06T15:06:14Z
date_updated: 2025-06-02T20:19:57Z
department:
- _id: '157'
- _id: '43'
doi: 10.4028/www.scientific.net/kem.883.89
intvolume: ' 883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 89-96
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: A Method for Characterization of Geometric Deviations in Clinch Points with
Computed Tomography and Transient Dynamic Analysis
type: journal_article
user_id: '83408'
volume: 883
year: '2021'
...