---
_id: '64678'
abstract:
- lang: eng
text: "One of the major topics in the modern automotive industry is reducing emissions
and increasing the mileage\r\nrange. To tackle this challenge, on the one hand,
modifying the powertrain system is a possibility, and on the\r\nother hand, lightweight
design offers various possibilities. Multi-Material Design (MMD) involves designing
car\r\nbodies that combine different materials that require joining. Given the
variety of materials, mechanical joining\r\nprocesses are preferred. Especially
the current development of the Giga/Mega-casting process concerning\r\naluminium
casting and the subsequent mechanical joining illustrates the challenges of this
material group. In car\r\nproduction, aluminium castings are mainly made from
aluminium-silicon (AlSi) alloys. Ultimately, the alloy\r\nsystem's insufficient
ductility leads to crack initiation during mechanical joining. Cast parts are
therefore often\r\nused in areas of the car body that are exposed to high-pressure
loads. For example, self-piercing riveting (SPR) is\r\nused due to its high load-bearing
capacity. In this study, improved joinability is demonstrated by influencing the\r\nmicrostructure
through tailored solidification rates and a developed heat-treatment chain strategy
adapted for\r\nhypoeutectic AlSi systems. Data on microstructure, mechanical,
and joining properties are used to develop a\r\nsolidification-joining correlation
for the SPR process across a range of Si contents and solidification rates. The\r\npurpose
is to develop the ability to produce suitable aluminium castings with sufficient
joinability, thereby\r\nimproving versatility."
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Pia Katharina
full_name: Kaimann, Pia Katharina
id: '44935'
last_name: Kaimann
- first_name: Ina
full_name: Stratmann, Ina
last_name: Stratmann
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Johann Moritz Benedikt
full_name: Klöckner, Johann Moritz Benedikt
last_name: Klöckner
- first_name: Moritz
full_name: Mann, Moritz
last_name: Mann
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- 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
citation:
ama: Neuser M, Kaimann PK, Stratmann I, et al. Solidification-joinability correlation
of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal
of Manufacturing Processes. 2026;164. doi:https://doi.org/10.1016/j.jmapro.2026.02.040
apa: Neuser, M., Kaimann, P. K., Stratmann, I., Bobbert, M., Klöckner, J. M. B.,
Mann, M., Hoyer, K.-P., Meschut, G., & Schaper, M. (2026). Solidification-joinability
correlation of hypoeutectic aluminium casting alloys for self-piercing riveting
(SPR). Journal of Manufacturing Processes, 164. https://doi.org/10.1016/j.jmapro.2026.02.040
bibtex: '@article{Neuser_Kaimann_Stratmann_Bobbert_Klöckner_Mann_Hoyer_Meschut_Schaper_2026,
title={Solidification-joinability correlation of hypoeutectic aluminium casting
alloys for self-piercing riveting (SPR)}, volume={164}, DOI={https://doi.org/10.1016/j.jmapro.2026.02.040},
journal={Journal of Manufacturing Processes}, publisher={Elsevier}, author={Neuser,
Moritz and Kaimann, Pia Katharina and Stratmann, Ina and Bobbert, Mathias and
Klöckner, Johann Moritz Benedikt and Mann, Moritz and Hoyer, Kay-Peter and Meschut,
Gerson and Schaper, Mirko}, year={2026} }'
chicago: Neuser, Moritz, Pia Katharina Kaimann, Ina Stratmann, Mathias Bobbert,
Johann Moritz Benedikt Klöckner, Moritz Mann, Kay-Peter Hoyer, Gerson Meschut,
and Mirko Schaper. “Solidification-Joinability Correlation of Hypoeutectic Aluminium
Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing
Processes 164 (2026). https://doi.org/10.1016/j.jmapro.2026.02.040.
ieee: 'M. Neuser et al., “Solidification-joinability correlation of hypoeutectic
aluminium casting alloys for self-piercing riveting (SPR),” Journal of Manufacturing
Processes, vol. 164, 2026, doi: https://doi.org/10.1016/j.jmapro.2026.02.040.'
mla: Neuser, Moritz, et al. “Solidification-Joinability Correlation of Hypoeutectic
Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing
Processes, vol. 164, Elsevier, 2026, doi:https://doi.org/10.1016/j.jmapro.2026.02.040.
short: M. Neuser, P.K. Kaimann, I. Stratmann, M. Bobbert, J.M.B. Klöckner, M. Mann,
K.-P. Hoyer, G. Meschut, M. Schaper, Journal of Manufacturing Processes 164 (2026).
date_created: 2026-02-26T11:21:24Z
date_updated: 2026-02-26T11:22:03Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '321'
doi: https://doi.org/10.1016/j.jmapro.2026.02.040
funded_apc: '1'
intvolume: ' 164'
keyword:
- Mechanical joining
- Aluminium
- Self-piercing riveting
- Casting
- Microstructure
- Joinability AlSi-alloys
language:
- iso: eng
project:
- _id: '131'
name: TRR 285 - Project Area A
- _id: '133'
name: TRR 285 - Project Area C
- _id: '136'
name: TRR 285 - Subproject A02
- _id: '146'
name: TRR 285 - Subproject C02
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Journal of Manufacturing Processes
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Solidification-joinability correlation of hypoeutectic aluminium casting alloys
for self-piercing riveting (SPR)
type: journal_article
user_id: '32340'
volume: 164
year: '2026'
...
---
_id: '59483'
abstract:
- lang: eng
text: Abstract. The assessment of mechanically joined connections, such
as clinched connections, is usually conducted destructively. Applicable non-destructive
testing methods like computed tomography are time-consuming and costly, or, like
electrical resistance measurement, provide only a limited amount of information.
A fast, non-destructive evaluation of the joints condition shall be made possible
by using transient dynamic analysis (TDA). It is based on the introduction of
sound waves and the evaluation of the response behavior after passing through
the structure. This study focuses the application of TDA to clinched shear connections
to evaluate the performance of the tactile measuring setup. Twenty-one series
were investigated, covering variations in joining task, manufacturing and defect.
The evaluation was carried out using machine learning to determine for which series
characteristic signals may be detected. It was shown that a classification of
the investigated specimens is possible, whereby the classification accuracy depends
on the examined variation. Furthermore, the accuracy was evaluated as a function
of frequency and results were concluded to identify the limits of the used measuring
setup.
author:
- first_name: Gregor
full_name: Reschke, Gregor
last_name: Reschke
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Reschke G, Brosius A. Transient dynamic analysis: Performance evaluation of
tactile measurement. In: Materials Research Proceedings. Vol 52. Materials
Research Forum LLC; 2025:293-300. doi:10.21741/9781644903551-36'
apa: 'Reschke, G., & Brosius, A. (2025). Transient dynamic analysis: Performance
evaluation of tactile measurement. Materials Research Proceedings, 52,
293–300. https://doi.org/10.21741/9781644903551-36'
bibtex: '@inproceedings{Reschke_Brosius_2025, title={Transient dynamic analysis:
Performance evaluation of tactile measurement}, volume={52}, DOI={10.21741/9781644903551-36},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Reschke, Gregor and Brosius, Alexander}, year={2025}, pages={293–300}
}'
chicago: 'Reschke, Gregor, and Alexander Brosius. “Transient Dynamic Analysis: Performance
Evaluation of Tactile Measurement.” In Materials Research Proceedings,
52:293–300. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-36.'
ieee: 'G. Reschke and A. Brosius, “Transient dynamic analysis: Performance evaluation
of tactile measurement,” in Materials Research Proceedings, Paderborn,
2025, vol. 52, pp. 293–300, doi: 10.21741/9781644903551-36.'
mla: 'Reschke, Gregor, and Alexander Brosius. “Transient Dynamic Analysis: Performance
Evaluation of Tactile Measurement.” Materials Research Proceedings, vol.
52, Materials Research Forum LLC, 2025, pp. 293–300, doi:10.21741/9781644903551-36.'
short: 'G. Reschke, A. Brosius, in: Materials Research Proceedings, Materials Research
Forum LLC, 2025, pp. 293–300.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st SheMet Conference
start_date: 2025-04-01
date_created: 2025-04-10T11:27:20Z
date_updated: 2025-04-10T11:33:28Z
department:
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-36
intvolume: ' 52'
keyword:
- Joining
- Machine Learning
- Transient Dynamic Analysis
language:
- iso: eng
page: 293-300
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: 'Transient dynamic analysis: Performance evaluation of tactile measurement'
type: conference
user_id: '98812'
volume: 52
year: '2025'
...
---
_id: '59872'
abstract:
- lang: eng
text: Lightweight design is a driving concept in modern automotive engineering to
minimize resource consumption over a vehicle's lifecycle through multi-material
design, which relies on the use of joining techniques in car body fabrication.
Multi-material design and the increasing trend towards producing large structural
components using the megacasting process pose considerable challenges, particularly
in the mechanical joining of aluminium-silicon (AlSi) castings. These castings
typically exhibit low ductility and are prone to cracking when mechanically joined.
Based on the excellent castability of hypoeutectic AlSi alloys, these are applied
in sand casting and die casting as well as in megacasting. With a silicon content
between 7 wt% and 12 wt%, these AlSi-alloys have a plate-like silicon phase that
initiates cracks during mechanical joining. To enhance the joinability of castings,
the research hypothesis is that improved solidification conditions enable a significant
modification in the microstructure and therefore, increase the mechanical properties.
During the manufacture of the castings using the sand casting process, the solidification
conditions within the structural elements are varied to modify the microstructure
to obtain castings with graded microstructure. The castings are evaluated using
mechanical, microstructural and joining testing methods and finally, a microstructure-joinability
correlation is established.
article_number: '01081'
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- 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
citation:
ama: Neuser M, Schlichter MC, Hoyer K-P, Bobbert M, Meschut G, Schaper M. Mechanical
joinability of microstructurally graded structural components manufactured from
hypoeutectic aluminium casting alloys. 44th Conference of the International
Deep Drawing Research Group (IDDRG 2025). 2025;408. doi:10.1051/matecconf/202540801081
apa: Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., &
Schaper, M. (2025). Mechanical joinability of microstructurally graded structural
components manufactured from hypoeutectic aluminium casting alloys. 44th Conference
of the International Deep Drawing Research Group (IDDRG 2025), 408,
Article 01081. https://doi.org/10.1051/matecconf/202540801081
bibtex: '@article{Neuser_Schlichter_Hoyer_Bobbert_Meschut_Schaper_2025, title={Mechanical
joinability of microstructurally graded structural components manufactured from
hypoeutectic aluminium casting alloys}, volume={408}, DOI={10.1051/matecconf/202540801081},
number={01081}, journal={44th Conference of the International Deep Drawing Research
Group (IDDRG 2025)}, author={Neuser, Moritz and Schlichter, Malte Christian and
Hoyer, Kay-Peter and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko},
year={2025} }'
chicago: Neuser, Moritz, Malte Christian Schlichter, Kay-Peter Hoyer, Mathias Bobbert,
Gerson Meschut, and Mirko Schaper. “Mechanical Joinability of Microstructurally
Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting
Alloys.” 44th Conference of the International Deep Drawing Research Group (IDDRG
2025) 408 (2025). https://doi.org/10.1051/matecconf/202540801081.
ieee: 'M. Neuser, M. C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, and M.
Schaper, “Mechanical joinability of microstructurally graded structural components
manufactured from hypoeutectic aluminium casting alloys,” 44th Conference of
the International Deep Drawing Research Group (IDDRG 2025), vol. 408, Art.
no. 01081, 2025, doi: 10.1051/matecconf/202540801081.'
mla: Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded
Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.”
44th Conference of the International Deep Drawing Research Group (IDDRG 2025),
vol. 408, 01081, 2025, doi:10.1051/matecconf/202540801081.
short: M. Neuser, M.C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, M. Schaper,
44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
408 (2025).
conference:
end_date: 2025-06-05
location: Lissabon (Portugal)
name: 44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
start_date: 2025-06-02
date_created: 2025-05-12T15:21:06Z
date_updated: 2026-02-24T13:41:58Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1051/matecconf/202540801081
intvolume: ' 408'
keyword:
- Joining
- Casting
- Self-pierce riveting
- Aluminium casting alloy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: "\thttps://doi.org/10.1051/matecconf/202540801081"
oa: '1'
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: 44th Conference of the International Deep Drawing Research Group (IDDRG
2025)
publication_status: published
quality_controlled: '1'
status: public
title: Mechanical joinability of microstructurally graded structural components manufactured
from hypoeutectic aluminium casting alloys
type: journal_article
user_id: '7850'
volume: 408
year: '2025'
...
---
_id: '59873'
abstract:
- lang: eng
text: This paper focuses on the failure behavior of clinched specimens with various
stiffnesses under shear tensile loading. The primary objective is to assess the
influence of the specimen stiffness with an arrangement of clinched joints. The
specimen stiffness depends on several variables. In addition to the material selection,
the specific choice of geometry and the design of the clinched joints must also
be taken into account. A number of experiments was conducted to investigate the
failure behavior of specimens with an arrangement of three clinched joints under
shear tensile loading. These configurations were subjected to shear tensile tests,
with force displacement curves recorded for each specimen to provide a detailed
characterization of their structural response. The stiffness is modified by altering
the specimen width, which has marginal impact on the maximum force. The experimental
findings indicate that reducing the specimen stiffness results in a shift in the
type of stress, with the failure behavior becoming increasingly influenced by
bending stress. These results offer important insights for the design of clinched
joint assemblies, indicating that it is feasible to achieve the desired properties
by changing the specimen stiffness.
article_number: '01080'
author:
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wolf E, Brosius A. Investigation failure behavior in the shear tensile test
with variety of specimen stiffness. In: MATEC Web of Conferences. Vol 408.
EDP Sciences; 2025. doi:10.1051/matecconf/202540801080'
apa: Wolf, E., & Brosius, A. (2025). Investigation failure behavior in the shear
tensile test with variety of specimen stiffness. MATEC Web of Conferences,
408, Article 01080. https://doi.org/10.1051/matecconf/202540801080
bibtex: '@inproceedings{Wolf_Brosius_2025, title={Investigation failure behavior
in the shear tensile test with variety of specimen stiffness}, volume={408}, DOI={10.1051/matecconf/202540801080},
number={01080}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Wolf, Eugen and Brosius, Alexander}, year={2025} }'
chicago: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in
the Shear Tensile Test with Variety of Specimen Stiffness.” In MATEC Web of
Conferences, Vol. 408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801080.
ieee: 'E. Wolf and A. Brosius, “Investigation failure behavior in the shear tensile
test with variety of specimen stiffness,” in MATEC Web of Conferences,
Lisbon, 2025, vol. 408, doi: 10.1051/matecconf/202540801080.'
mla: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in the
Shear Tensile Test with Variety of Specimen Stiffness.” MATEC Web of Conferences,
vol. 408, 01080, EDP Sciences, 2025, doi:10.1051/matecconf/202540801080.
short: 'E. Wolf, A. Brosius, in: MATEC Web of Conferences, EDP Sciences, 2025.'
conference:
end_date: 2025-06-05
location: Lisbon
name: 44th Conference of the International Deep Drawing Research Group
start_date: 2025-06-01
date_created: 2025-05-13T05:41:58Z
date_updated: 2025-06-23T07:25:21Z
department:
- _id: '630'
doi: 10.1051/matecconf/202540801080
intvolume: ' 408'
keyword:
- Joining
- Sheet Metal
- Stiffness
- Clinching
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
status: public
title: Investigation failure behavior in the shear tensile test with variety of specimen
stiffness
type: conference
user_id: '104464'
volume: 408
year: '2025'
...
---
_id: '59485'
abstract:
- lang: eng
text: This paper focuses on the failure behavior of specimens with various configurations
of clinched joints under shear tensile loading. The primary objective is to assess
the influence of the joining direction and the spatial arrangement of clinched
joints on their mechanical performance. A number of experiments was conducted,
focusing on three clinched joints arranged in different configurations, each varying
in terms of joining direction and spacing. These configurations were subjected
to shear tensile tests, with force-displacement curves recorded for each sample
to provide a detailed characterization of their structural response. The experimental
findings indicate that the specific arrangement of the clinched joints, in terms
of joining direction, has a marginal impact on the overall failure behavior. This
suggests that intricate modifications to the joining direction are unnecessary
to achieve improved mechanical performance in such applications. These results
offer valuable insights for the design of clinched joint assemblies, indicating
that simplified joining strategies may suffice without compromising structural
integrity under shear loading.
author:
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wolf E, Brosius A. Investigation failure behavior in the shear tensile test
with respect to the arrangements of clinched joints. In: Materials Research
Proceedings. Vol 52. Materials Research Forum LLC; 2025:86-92. doi:10.21741/9781644903551-11'
apa: Wolf, E., & Brosius, A. (2025). Investigation failure behavior in the shear
tensile test with respect to the arrangements of clinched joints. Materials
Research Proceedings, 52, 86–92. https://doi.org/10.21741/9781644903551-11
bibtex: '@inproceedings{Wolf_Brosius_2025, title={Investigation failure behavior
in the shear tensile test with respect to the arrangements of clinched joints},
volume={52}, DOI={10.21741/9781644903551-11},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Wolf, Eugen and Brosius, Alexander}, year={2025}, pages={86–92}
}'
chicago: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in
the Shear Tensile Test with Respect to the Arrangements of Clinched Joints.” In
Materials Research Proceedings, 52:86–92. Materials Research Forum LLC,
2025. https://doi.org/10.21741/9781644903551-11.
ieee: 'E. Wolf and A. Brosius, “Investigation failure behavior in the shear tensile
test with respect to the arrangements of clinched joints,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 86–92, doi: 10.21741/9781644903551-11.'
mla: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in the
Shear Tensile Test with Respect to the Arrangements of Clinched Joints.” Materials
Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, pp. 86–92,
doi:10.21741/9781644903551-11.
short: 'E. Wolf, A. Brosius, in: Materials Research Proceedings, Materials Research
Forum LLC, 2025, pp. 86–92.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-04-10T11:28:28Z
date_updated: 2025-06-23T07:26:23Z
department:
- _id: '630'
doi: 10.21741/9781644903551-11
intvolume: ' 52'
keyword:
- Joining
- Sheet Metal
- Clinching
language:
- iso: eng
page: ' 86 - 92'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Investigation failure behavior in the shear tensile test with respect to the
arrangements of clinched joints
type: conference
user_id: '104464'
volume: 52
year: '2025'
...
---
_id: '60299'
abstract:
- lang: eng
text: Non-rotationally symmetrical joints can have different properties that can
be controlled by the joint orientation. This hypothesis is tested using a Reuleaux
triangle joint geometry. A tool design is carried out, followed by a numerical
sensitivity analysis of the tool geometry. Initial tools were manufactured for
experimental investigations and then adapted based on the findings of the sensitivity
analysis. The joints are characterized by micrographs, 3D scans, shear tensile
tests, head tensile tests and three-point bending tests and compared with a round
geometry. The analysis confirms the hypothesis. Thus, joints with adaptable properties
can be produced with one tool set.
author:
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Clemens
full_name: Acksteiner, Clemens
last_name: Acksteiner
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: Steinfelder C, Acksteiner C, Brosius A. A new joint with versatile properties
based on a Reuleaux triangle geometry. CIRP Annals. Published online 2025.
doi:10.1016/j.cirp.2025.03.002
apa: Steinfelder, C., Acksteiner, C., & Brosius, A. (2025). A new joint with
versatile properties based on a Reuleaux triangle geometry. CIRP Annals.
https://doi.org/10.1016/j.cirp.2025.03.002
bibtex: '@article{Steinfelder_Acksteiner_Brosius_2025, title={A new joint with versatile
properties based on a Reuleaux triangle geometry}, DOI={10.1016/j.cirp.2025.03.002},
journal={CIRP Annals}, publisher={Elsevier BV}, author={Steinfelder, Christian
and Acksteiner, Clemens and Brosius, Alexander}, year={2025} }'
chicago: Steinfelder, Christian, Clemens Acksteiner, and Alexander Brosius. “A New
Joint with Versatile Properties Based on a Reuleaux Triangle Geometry.” CIRP
Annals, 2025. https://doi.org/10.1016/j.cirp.2025.03.002.
ieee: 'C. Steinfelder, C. Acksteiner, and A. Brosius, “A new joint with versatile
properties based on a Reuleaux triangle geometry,” CIRP Annals, 2025, doi:
10.1016/j.cirp.2025.03.002.'
mla: Steinfelder, Christian, et al. “A New Joint with Versatile Properties Based
on a Reuleaux Triangle Geometry.” CIRP Annals, Elsevier BV, 2025, doi:10.1016/j.cirp.2025.03.002.
short: C. Steinfelder, C. Acksteiner, A. Brosius, CIRP Annals (2025).
date_created: 2025-06-23T07:47:56Z
date_updated: 2025-06-23T08:00:05Z
department:
- _id: '630'
doi: 10.1016/j.cirp.2025.03.002
keyword:
- Joining
- Forming
- Property adjustment
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: CIRP Annals
publication_identifier:
issn:
- 0007-8506
publication_status: published
publisher: Elsevier BV
status: public
title: A new joint with versatile properties based on a Reuleaux triangle geometry
type: journal_article
user_id: '104464'
year: '2025'
...
---
_id: '60290'
abstract:
- lang: eng
text: The constantly increasing demand for climate protection and resource conservation
requires innovative and versatile joining processes that improve adaptability
to the joining task and robustness to enable flexible manufacturing on a production
line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed.
Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN
AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard
to the binding mechanisms form closure and force closure using micrographs, non-destructive
resistance measurements and destructive torsion tests. For this purpose, a new
sample geometry was defined, and the methods were adapted to the SPR process variants.
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- 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: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms
depending on versatile process variants of self-piercing riveting. In: Meschut
G, Bobbert M, Duflou J, et al., eds. Materials Research Proceedings. Vol
52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:10.21741/9781644903551-13'
apa: Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner,
M., & Schmale, H. C. (2025). Analysis of the binding mechanisms depending
on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert,
J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, & F. Micari
(Eds.), Materials Research Proceedings (Vol. 52, pp. 101–108). Materials
Research Forum LLC. https://doi.org/10.21741/9781644903551-13
bibtex: '@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025,
place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding
mechanisms depending on versatile process variants of self-piercing riveting},
volume={52}, DOI={10.21741/9781644903551-13},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon
and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans
Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and
Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion
and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025}
}'
chicago: 'Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert,
Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the
Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.”
In Materials Research Proceedings, edited by Gerson Meschut, Mathias Bobbert,
Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein,
and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research
Forum LLC, 2025. https://doi.org/10.21741/9781644903551-13.'
ieee: 'S. Lüder et al., “Analysis of the binding mechanisms depending on
versatile process variants of self-piercing riveting,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 101–108, doi: 10.21741/9781644903551-13.'
mla: Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile
Process Variants of Self-Piercing Riveting.” Materials Research Proceedings,
edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025,
pp. 101–08, doi:10.21741/9781644903551-13.
short: 'S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner,
H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F.
Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials
Research Forum LLC, Millersville, 2025, pp. 101–108.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-06-20T10:13:22Z
date_updated: 2025-06-27T08:19:26Z
department:
- _id: '630'
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-13
editor:
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Joost
full_name: Duflou, Joost
last_name: Duflou
- first_name: Livan
full_name: Fratini, Livan
last_name: Fratini
- first_name: Hinnerk
full_name: Hagenah, Hinnerk
last_name: Hagenah
- first_name: Paulo A. F.
full_name: Martins, Paulo A. F.
last_name: Martins
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Fabrizio
full_name: Micari, Fabrizio
last_name: Micari
extern: '1'
intvolume: ' 52'
keyword:
- Joining
- Self-Piercing Riveting
- Sheet Metal
language:
- iso: eng
page: 101 - 108
place: Millersville
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
series_title: Sheet Metal 2025
status: public
title: Analysis of the binding mechanisms depending on versatile process variants
of self-piercing riveting
type: conference
user_id: '44935'
volume: 52
year: '2025'
...
---
_id: '60285'
abstract:
- lang: eng
text: This paper examines the impact of a rotationally superimposed punch stroke
on the binding mechanisms of clinched joints of aluminum sheets. As part of the
development of a method for ensuring the versatility of clinching, an additional
rotational movement of the punch was introduced as a control variable to influence
friction in the mechanical joining process. The effect of rotational superimposition
on the force-displacement curve of the clinching processes was investigated using
four test variants with different kinematics. The primary objective was to evaluate
the binding mechanisms that maintain the integrity of the clinched joint. To evaluate
the force closure of the resulting joint, two testing methods were employed throughout
the course of the research, non-destructive resistance measurement using four-wire
sensing method and destructive torsion testing. A crucial factor influencing the
efficacy of the process is surface cleanliness, as contaminants between joining
partners can impede the effectiveness of the clinched joint. Therefore, all specimens
were meticulously cleaned prior to experimentation. This method exhibits promising
potential in creating clinched joints that align with the demands of flexible
manufacturing environments.
article_number: '01086'
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Lüder S, Wolf E, Schmale HC, Brosius A. Investigation of the impact of a rotationally
superimposed punch stroke on the binding mechanisms of a clinched joint. In: MATEC
Web of Conferences. Vol 408. EDP Sciences; 2025. doi:10.1051/matecconf/202540801086'
apa: Lüder, S., Wolf, E., Schmale, H. C., & Brosius, A. (2025). Investigation
of the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint. MATEC Web of Conferences, 408, Article 01086.
https://doi.org/10.1051/matecconf/202540801086
bibtex: '@inproceedings{Lüder_Wolf_Schmale_Brosius_2025, title={Investigation of
the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint}, volume={408}, DOI={10.1051/matecconf/202540801086},
number={01086}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Lüder, Stephan and Wolf, Eugen and Schmale, Hans Christian and Brosius,
Alexander}, year={2025} }'
chicago: Lüder, Stephan, Eugen Wolf, Hans Christian Schmale, and Alexander Brosius.
“Investigation of the Impact of a Rotationally Superimposed Punch Stroke on the
Binding Mechanisms of a Clinched Joint.” In MATEC Web of Conferences, Vol.
408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801086.
ieee: 'S. Lüder, E. Wolf, H. C. Schmale, and A. Brosius, “Investigation of the impact
of a rotationally superimposed punch stroke on the binding mechanisms of a clinched
joint,” in MATEC Web of Conferences, Lisbon, 2025, vol. 408, doi: 10.1051/matecconf/202540801086.'
mla: Lüder, Stephan, et al. “Investigation of the Impact of a Rotationally Superimposed
Punch Stroke on the Binding Mechanisms of a Clinched Joint.” MATEC Web of Conferences,
vol. 408, 01086, EDP Sciences, 2025, doi:10.1051/matecconf/202540801086.
short: 'S. Lüder, E. Wolf, H.C. Schmale, A. Brosius, in: MATEC Web of Conferences,
EDP Sciences, 2025.'
conference:
end_date: 2025-06-05
location: Lisbon
name: '44th Conference of the International Deep Drawing Research Group (IDDRG 2025) '
start_date: 2025-06-01
date_created: 2025-06-20T06:57:16Z
date_updated: 2025-07-18T09:01:46Z
department:
- _id: '630'
doi: 10.1051/matecconf/202540801086
extern: '1'
intvolume: ' 408'
keyword:
- Joining
- Sheet Metal
- Tribology
- Clinching
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Investigation of the impact of a rotationally superimposed punch stroke on
the binding mechanisms of a clinched joint
type: conference
user_id: '104468'
volume: 408
year: '2025'
...
---
_id: '60837'
abstract:
- lang: eng
text: "In light of growing demands for resource efficiency and sustainability in
vehicle engineering, the environmentally compatible separation of structural adhesive
joints is gaining increasing relevance. This study presents a comparative analysis
of two physically based debonding methods: the established hot-air process and
a cryogenic cold process based on liquid nitrogen (LN2). The primary objective
is to assess the ecological impact and process-related sustainability of both
approaches.\r\nExperimental investigations were conducted on a component-representative
triple-sheet structure that simulates common automotive flange joints. Thermal
input was applied either by convective heating using a hot air gun or by direct
cooling through a contact-based LN2 tool. The resulting temperature profiles were
recorded using spatially distributed thermocouples. Subsequently, the outer panel
was selectively debonded to replicate a repair scenario, and the mechanical integrity
of the remaining adhesive joint was evaluated through Mode I testing of L-shaped
specimens. Process data served as input for an Life Cycle Assessment (LCA) according
to DIN EN ISO 14040.\r\nThe cryogenic method achieved a 40% reduction in carbon
footprint compared to the hot-air process (0.337 kg vs. 0.559 kg CO2-equivalents),
primarily due to its shorter process time and more efficient heat transfer. While
the hot-air method’s impact is mainly driven by electrical energy use, that of
the cold method stems from cryogenic media consumption. Notwithstanding certain
disadvantages in specific impact categories, the LN2-based process exhibits a
superior overall ecological performance and signifies a promising solution for
repair- and recycling-oriented adhesive separation in structural vehicle applications."
article_number: '100332'
article_type: original
author:
- first_name: Alex
full_name: Jordan, Alex
id: '62451'
last_name: Jordan
orcid: 0009-0007-9546-6071
- first_name: Lucas
full_name: Hermelingmeier, Lucas
id: '58649'
last_name: Hermelingmeier
- first_name: Julian
full_name: Gilich, Julian
id: '44391'
last_name: Gilich
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Marco Sebastian
full_name: De Santis, Marco Sebastian
id: '52239'
last_name: De Santis
- first_name: Alexander
full_name: Schlüter, Alexander
id: '103302'
last_name: Schlüter
orcid: 0000-0002-2569-1624
citation:
ama: Jordan A, Hermelingmeier L, Gilich J, Meschut G, De Santis MS, Schlüter A.
Comparison of the economic efficiency and sustainability of two debonding processes
for structurally bonded sills. Journal of Advanced Joining Processes. 2025;12.
doi:10.1016/j.jajp.2025.100332
apa: Jordan, A., Hermelingmeier, L., Gilich, J., Meschut, G., De Santis, M. S.,
& Schlüter, A. (2025). Comparison of the economic efficiency and sustainability
of two debonding processes for structurally bonded sills. Journal of Advanced
Joining Processes, 12, Article 100332. https://doi.org/10.1016/j.jajp.2025.100332
bibtex: '@article{Jordan_Hermelingmeier_Gilich_Meschut_De Santis_Schlüter_2025,
title={Comparison of the economic efficiency and sustainability of two debonding
processes for structurally bonded sills}, volume={12}, DOI={10.1016/j.jajp.2025.100332},
number={100332}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier},
author={Jordan, Alex and Hermelingmeier, Lucas and Gilich, Julian and Meschut,
Gerson and De Santis, Marco Sebastian and Schlüter, Alexander}, year={2025} }'
chicago: Jordan, Alex, Lucas Hermelingmeier, Julian Gilich, Gerson Meschut, Marco
Sebastian De Santis, and Alexander Schlüter. “Comparison of the Economic Efficiency
and Sustainability of Two Debonding Processes for Structurally Bonded Sills.”
Journal of Advanced Joining Processes 12 (2025). https://doi.org/10.1016/j.jajp.2025.100332.
ieee: 'A. Jordan, L. Hermelingmeier, J. Gilich, G. Meschut, M. S. De Santis, and
A. Schlüter, “Comparison of the economic efficiency and sustainability of two
debonding processes for structurally bonded sills,” Journal of Advanced Joining
Processes, vol. 12, Art. no. 100332, 2025, doi: 10.1016/j.jajp.2025.100332.'
mla: Jordan, Alex, et al. “Comparison of the Economic Efficiency and Sustainability
of Two Debonding Processes for Structurally Bonded Sills.” Journal of Advanced
Joining Processes, vol. 12, 100332, Elsevier, 2025, doi:10.1016/j.jajp.2025.100332.
short: A. Jordan, L. Hermelingmeier, J. Gilich, G. Meschut, M.S. De Santis, A. Schlüter,
Journal of Advanced Joining Processes 12 (2025).
date_created: 2025-07-30T11:04:28Z
date_updated: 2026-01-06T08:22:54Z
department:
- _id: '157'
- _id: '876'
- _id: '321'
- _id: '9'
doi: 10.1016/j.jajp.2025.100332
intvolume: ' 12'
keyword:
- Sustainable debonding
- Structural adhesives
- Sustainable joining technologies
- Life Cycle Assessment (LCA)
- Automotive repair process
- Economically efficient debonding
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S2666330925000536?via%3Dihub
oa: '1'
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Comparison of the economic efficiency and sustainability of two debonding processes
for structurally bonded sills
type: journal_article
user_id: '103302'
volume: 12
year: '2025'
...
---
_id: '60300'
abstract:
- lang: eng
text: This study focuses on the phenomenological change in material strength caused
by a specific heat treatment and the subsequent analysis of the influence on the
clinching process and the resulting joint properties. For this purpose, three
series of tests were performed. In the first series of tests, the influence of
heat treatment up to 340 °C on the mechanical properties of an age-hardenable
AlMgSi alloy was investigated. Holding time and temperature were varied and the
material strength was evaluated by tensile and hardness tests. Two strength-increasing
and two strength-reducing heat treatment parameters were identified. In the second
series of tests, selected heat treatment parameters were applied to a larger number
of specimens and the joint strength was investigated by shear and head tensile
tests. In the shear tensile test, mainly the properties of the punch-side material
have an influence on the resulting joint strength. A change in strength of the
die-side material can be neglected. In contrast, the properties of both sheets
are important in the head tensile test. The strength of the joint will only increase
if the strength of both sheets is increased. In general, a strength increasing
heat treatment resulted in higher joint strength. In the third series of tests,
the factor of punch displacement was considered, which was demonstrated to directly
influence the formation of the clinched joint geometry.
article_number: '100263'
author:
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Dennis
full_name: Rempel, Dennis
last_name: Rempel
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: Steinfelder C, Rempel D, Brosius A. Influence of the material properties on
the clinching process and the resulting load-bearing capacity of the joint. Journal
of Advanced Joining Processes. 2024;10. doi:10.1016/j.jajp.2024.100263
apa: Steinfelder, C., Rempel, D., & Brosius, A. (2024). Influence of the material
properties on the clinching process and the resulting load-bearing capacity of
the joint. Journal of Advanced Joining Processes, 10, Article 100263.
https://doi.org/10.1016/j.jajp.2024.100263
bibtex: '@article{Steinfelder_Rempel_Brosius_2024, title={Influence of the material
properties on the clinching process and the resulting load-bearing capacity of
the joint}, volume={10}, DOI={10.1016/j.jajp.2024.100263},
number={100263}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
BV}, author={Steinfelder, Christian and Rempel, Dennis and Brosius, Alexander},
year={2024} }'
chicago: Steinfelder, Christian, Dennis Rempel, and Alexander Brosius. “Influence
of the Material Properties on the Clinching Process and the Resulting Load-Bearing
Capacity of the Joint.” Journal of Advanced Joining Processes 10 (2024).
https://doi.org/10.1016/j.jajp.2024.100263.
ieee: 'C. Steinfelder, D. Rempel, and A. Brosius, “Influence of the material properties
on the clinching process and the resulting load-bearing capacity of the joint,”
Journal of Advanced Joining Processes, vol. 10, Art. no. 100263, 2024,
doi: 10.1016/j.jajp.2024.100263.'
mla: Steinfelder, Christian, et al. “Influence of the Material Properties on the
Clinching Process and the Resulting Load-Bearing Capacity of the Joint.” Journal
of Advanced Joining Processes, vol. 10, 100263, Elsevier BV, 2024, doi:10.1016/j.jajp.2024.100263.
short: C. Steinfelder, D. Rempel, A. Brosius, Journal of Advanced Joining Processes
10 (2024).
date_created: 2025-06-23T07:54:23Z
date_updated: 2025-06-23T07:57:53Z
department:
- _id: '630'
doi: 10.1016/j.jajp.2024.100263
intvolume: ' 10'
keyword:
- Joining by forming
- Clinching
- EN AW-6014
- Heat treatment
- Load-bearing capacity
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier BV
status: public
title: Influence of the material properties on the clinching process and the resulting
load-bearing capacity of the joint
type: journal_article
user_id: '104464'
volume: 10
year: '2024'
...
---
_id: '60304'
abstract:
- lang: eng
text: The focus towards multi-material and lightweight assemblies, driven by legal
requirements on reducing emissions and energy consumptions, reveals important
drawbacks and disadvantages of established joining processes, such as welding.
In this context, mechanical joining technologies, such as clinching, are becoming
more and more relevant especially in the automotive industry. However, the availability
of only few standards and almost none systematic design methods causes a still
very time- and cost-intensive assembly development process considering mainly
expert knowledge and a considerable amount of experimental studies. Motivated
by this, the presented work introduces a novel approach for the methodical design
and dimensioning of mechanically clinched assemblies. Therefore, the utilization
of regression models, such as machine learning algorithms, combined with manufacturing
knowledge ensures a reliable estimation of individual clinched joint characteristics.
In addition, the implementation of an engineering workbench enables the following
data-driven and knowledge-based generation of high-quality initial assembly designs
already in early product development phases. In a subsequent analysis and adjustment,
these designs are being improved while guaranteeing joining safety and loading
conformity. The presented results indicate that the methodological approach can
pave the way to a more systematic design process of mechanical joining assemblies,
which can significantly shorten the required number of iteration loops and therefore
the product development time.
author:
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Sven
full_name: Martin, Sven
last_name: Martin
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Thomas
full_name: Tröster, Thomas
last_name: Tröster
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
citation:
ama: 'Zirngibl C, Martin S, Steinfelder C, et al. Methodical approach for the design
and dimensioning of mechanical clinched assemblies. In: Materials Research
Proceedings. Vol 25. Materials Research Forum LLC; 2023. doi:10.21741/9781644902417-23'
apa: Zirngibl, C., Martin, S., Steinfelder, C., Schleich, B., Tröster, T., Brosius,
A., & Wartzack, S. (2023). Methodical approach for the design and dimensioning
of mechanical clinched assemblies. Materials Research Proceedings, 25.
https://doi.org/10.21741/9781644902417-23
bibtex: '@inproceedings{Zirngibl_Martin_Steinfelder_Schleich_Tröster_Brosius_Wartzack_2023,
title={Methodical approach for the design and dimensioning of mechanical clinched
assemblies}, volume={25}, DOI={10.21741/9781644902417-23},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Zirngibl, Christoph and Martin, Sven and Steinfelder, Christian
and Schleich, Benjamin and Tröster, Thomas and Brosius, Alexander and Wartzack,
Sandro}, year={2023} }'
chicago: Zirngibl, Christoph, Sven Martin, Christian Steinfelder, Benjamin Schleich,
Thomas Tröster, Alexander Brosius, and Sandro Wartzack. “Methodical Approach for
the Design and Dimensioning of Mechanical Clinched Assemblies.” In Materials
Research Proceedings, Vol. 25. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-23.
ieee: 'C. Zirngibl et al., “Methodical approach for the design and dimensioning
of mechanical clinched assemblies,” in Materials Research Proceedings,
Erlangen-Nürnberg, 2023, vol. 25, doi: 10.21741/9781644902417-23.'
mla: Zirngibl, Christoph, et al. “Methodical Approach for the Design and Dimensioning
of Mechanical Clinched Assemblies.” Materials Research Proceedings, vol.
25, Materials Research Forum LLC, 2023, doi:10.21741/9781644902417-23.
short: 'C. Zirngibl, S. Martin, C. Steinfelder, B. Schleich, T. Tröster, A. Brosius,
S. Wartzack, in: Materials Research Proceedings, Materials Research Forum LLC,
2023.'
conference:
end_date: 2023-04-05
location: Erlangen-Nürnberg
name: 20th International Conference on Sheet Metal
start_date: 2023-04-02
date_created: 2025-06-23T08:08:23Z
date_updated: 2025-06-23T08:15:07Z
department:
- _id: '630'
doi: 10.21741/9781644902417-23
intvolume: ' 25'
keyword:
- Joining
- Structural Analysis
- Machine Learning
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Methodical approach for the design and dimensioning of mechanical clinched
assemblies
type: conference
user_id: '104464'
volume: 25
year: '2023'
...
---
_id: '60302'
abstract:
- lang: eng
text: The combination of the mechanical properties of a clinched joint and of the
material surrounding the joint determine the resulting properties of the component
and joint. The cause and effect relationships between the joint and the joint
environment offers the possibility of a specific modification through an adaptation
in the design process. In order to identify these cause and effect relationships
and resulting interactions experimentally, numerous of experiments are required.
In this publication, a concept for the automated manufacturing of head tensile
test and shear tensile test specimens – from cutting to clinching – by using a
punch laser machine is presented. Based on a full-factorial experimental design,
the parameters change of the properties of the joint environment by beading and
change of the punch displacement are addressed. The influence on the properties
of the clinched specimen is evaluated based on the variables Stiffness, force
at the beginning of yielding and maximum force at head tensile loading and shear
tensile loading. In addition, the geometric quality parameters of neck thickness,
interlock and bottom thickness are evaluated. The relationships can be used to
apply uniform loads to joints in joined structures to counteract oversizing.
author:
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Steinfelder C, Brosius A. Experimental investigation of the cause and effect
relationships between the joint and the component during clinching. In: Materials
Research Proceedings. Vol 25. Materials Research Forum LLC; 2023. doi:10.21741/9781644902417-19'
apa: Steinfelder, C., & Brosius, A. (2023). Experimental investigation of the
cause and effect relationships between the joint and the component during clinching.
Materials Research Proceedings, 25. https://doi.org/10.21741/9781644902417-19
bibtex: '@inproceedings{Steinfelder_Brosius_2023, title={Experimental investigation
of the cause and effect relationships between the joint and the component during
clinching}, volume={25}, DOI={10.21741/9781644902417-19},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Steinfelder, Christian and Brosius, Alexander}, year={2023} }'
chicago: Steinfelder, Christian, and Alexander Brosius. “Experimental Investigation
of the Cause and Effect Relationships between the Joint and the Component during
Clinching.” In Materials Research Proceedings, Vol. 25. Materials Research
Forum LLC, 2023. https://doi.org/10.21741/9781644902417-19.
ieee: 'C. Steinfelder and A. Brosius, “Experimental investigation of the cause and
effect relationships between the joint and the component during clinching,” in
Materials Research Proceedings, Erlangen-Nürnberg, 2023, vol. 25, doi:
10.21741/9781644902417-19.'
mla: Steinfelder, Christian, and Alexander Brosius. “Experimental Investigation
of the Cause and Effect Relationships between the Joint and the Component during
Clinching.” Materials Research Proceedings, vol. 25, Materials Research
Forum LLC, 2023, doi:10.21741/9781644902417-19.
short: 'C. Steinfelder, A. Brosius, in: Materials Research Proceedings, Materials
Research Forum LLC, 2023.'
conference:
end_date: 2023-04-05
location: Erlangen-Nürnberg
name: 20th International Conference on Sheet Metal
start_date: 2023-04-02
date_created: 2025-06-23T08:00:55Z
date_updated: 2025-06-23T08:07:52Z
department:
- _id: '630'
doi: 10.21741/9781644902417-19
intvolume: ' 25'
keyword:
- Sheet Metal
- Joining
- Stiffness
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Experimental investigation of the cause and effect relationships between the
joint and the component during clinching
type: conference
user_id: '104464'
volume: 25
year: '2023'
...
---
_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: '22274'
abstract:
- lang: eng
text: 'The use of high-strength steel and aluminium is rising due to the intensified
efforts being made in lightweight design, and self-piercing riveting is becoming
increasingly important. Conventional rivets for self-piercing riveting differ
in their geometry, the material used, the condition of the material and the coating.
To shorten the manufacturing process, the use of stainless steel with high strain
hardening as the rivet material represents a promising approach. This allows the
coating of the rivets to be omitted due to the corrosion resistance of the material
and, since the strength of the stainless steel is achieved by cold forming, heat
treatment is no longer required. In addition, it is possible to adjust the local
strength within the rivet. Because of that, the authors have elaborated a concept
for using high nitrogen steel 1.3815 as the rivet material. The present investigation
focusses on the joint strength in order to evaluate the capability of rivets in
high nitrogen steel by comparison to conventional rivets made of treatable steel.
Due to certain challenges in the forming process of the high nitrogen steel rivets,
deviations result from the targeted rivet geometry. Mainly these deviations cause
a lower joint strength with these rivets, which is, however, adequate. All in
all, the capability of the new rivet is proven by the results of this investigation. '
author:
- first_name: Benedikt
full_name: Uhe, Benedikt
id: '38131'
last_name: Uhe
- first_name: Clara-Maria
full_name: Kuball, Clara-Maria
last_name: Kuball
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Uhe B, Kuball C-M, Merklein M, Meschut G. Strength of self-piercing riveted
Joints with conventional Rivets and Rivets made of High Nitrogen Steel. In: ;
2021. doi:10.25518/esaform21.1911'
apa: Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2021). Strength
of self-piercing riveted Joints with conventional Rivets and Rivets made of High
Nitrogen Steel. 24th International Conference on Material Forming (ESAFORM),
Liège, Belgien. https://doi.org/10.25518/esaform21.1911
bibtex: '@inproceedings{Uhe_Kuball_Merklein_Meschut_2021, title={Strength of self-piercing
riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel},
DOI={10.25518/esaform21.1911},
author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut,
Gerson}, year={2021} }'
chicago: Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
“Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets
Made of High Nitrogen Steel,” 2021. https://doi.org/10.25518/esaform21.1911.
ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Strength of self-piercing
riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel,”
presented at the 24th International Conference on Material Forming (ESAFORM),
Liège, Belgien, 2021, doi: 10.25518/esaform21.1911.'
mla: Uhe, Benedikt, et al. Strength of Self-Piercing Riveted Joints with Conventional
Rivets and Rivets Made of High Nitrogen Steel. 2021, doi:10.25518/esaform21.1911.
short: 'B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: 2021.'
conference:
end_date: 2021-04-16
location: Liège, Belgien
name: 24th International Conference on Material Forming (ESAFORM)
start_date: 2021-04-14
date_created: 2021-05-31T10:17:37Z
date_updated: 2026-02-27T10:25:13Z
department:
- _id: '157'
doi: 10.25518/esaform21.1911
keyword:
- Self-piercing Riveting
- Joining Technology
- Rivet Geometry
- Rivet Material
- High Nitrogen Steel
- Joint Strength
language:
- iso: eng
quality_controlled: '1'
status: public
title: Strength of self-piercing riveted Joints with conventional Rivets and Rivets
made of High Nitrogen Steel
type: conference
user_id: '53912'
year: '2021'
...
---
_id: '22272'
abstract:
- lang: eng
text: The number of multi-material joints is increasing as a result of lightweight
design. Self-piercing riveting (SPR) is an important mechanical joining technique
for multi-material structures. Rivets for SPR are coated to prevent corrosion,
but this coating also influences the friction that prevails during the joining
process. The aim of the present investigation is to evaluate this influence. The
investigation focuses on the common rivet coatings Almac® and zinc-nickel with
topcoat as well as on uncoated rivet surfaces. First of all, the coating thickness
and the uniformity of the coating distribution are analysed. Friction tests facilitate
the classification of the surface properties. The influence of the friction on
the characteristic joint parameters and the force-stroke curves is analysed by
means of experimental joining tests. More in-depth knowledge of the effects that
occur is achieved through the use of numerical simulation. Overall, it is shown
that the surface condition of the rivet has an impact on the friction during the
joining process and on the resulting joint. However, the detected deviations between
different surface conditions do not restrict the operational capability of SPR
and the properties of uncoated rivet surfaces, in particular, are similar to those
of Almac®-coated rivets. It can thus be assumed that SPR with respect to the joining
process is also possible without rivet coating in principle.
author:
- first_name: Benedikt
full_name: Uhe, Benedikt
id: '38131'
last_name: Uhe
- first_name: Clara-Maria
full_name: Kuball, Clara-Maria
last_name: Kuball
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Uhe B, Kuball C-M, Merklein M, Meschut G. Influence of the Rivet Coating on
the Friction during Self-Piercing Riveting. Key Engineering Materials.
2021;883:11-18. doi:10.4028/www.scientific.net/KEM.883.11
apa: Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2021). Influence of
the Rivet Coating on the Friction during Self-Piercing Riveting. Key Engineering
Materials, 883, 11–18. https://doi.org/10.4028/www.scientific.net/KEM.883.11
bibtex: '@article{Uhe_Kuball_Merklein_Meschut_2021, title={Influence of the Rivet
Coating on the Friction during Self-Piercing Riveting}, volume={883}, DOI={10.4028/www.scientific.net/KEM.883.11},
journal={Key Engineering Materials}, author={Uhe, Benedikt and Kuball, Clara-Maria
and Merklein, Marion and Meschut, Gerson}, year={2021}, pages={11–18} }'
chicago: 'Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
“Influence of the Rivet Coating on the Friction during Self-Piercing Riveting.”
Key Engineering Materials 883 (2021): 11–18. https://doi.org/10.4028/www.scientific.net/KEM.883.11.'
ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Influence of the Rivet
Coating on the Friction during Self-Piercing Riveting,” Key Engineering Materials,
vol. 883, pp. 11–18, 2021, doi: 10.4028/www.scientific.net/KEM.883.11.'
mla: Uhe, Benedikt, et al. “Influence of the Rivet Coating on the Friction during
Self-Piercing Riveting.” Key Engineering Materials, vol. 883, 2021, pp.
11–18, doi:10.4028/www.scientific.net/KEM.883.11.
short: B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Key Engineering Materials
883 (2021) 11–18.
date_created: 2021-05-31T10:06:11Z
date_updated: 2026-02-27T10:23:33Z
department:
- _id: '157'
doi: 10.4028/www.scientific.net/KEM.883.11
intvolume: ' 883'
keyword:
- Coating
- Friction
- Joining
language:
- iso: eng
page: 11-18
publication: Key Engineering Materials
quality_controlled: '1'
status: public
title: Influence of the Rivet Coating on the Friction during Self-Piercing Riveting
type: journal_article
user_id: '53912'
volume: 883
year: '2021'
...
---
_id: '19976'
abstract:
- lang: eng
text: The aim to reduce pollutant emission has led to a trend towards lightweight
construction in car body development during the last years. As a consequence of
the resulting need for multi-material design, mechanical joining technologies
become increasingly important. Mechanical joining allows for the combination of
dissimilar materials, while thermic joining techniques reach their limits. Self-piercing
riveting enables the joining of dissimilar materials by using semi-tubular rivets
as mechanical fasteners. The rivet production, however, is costly and time-consuming,
as the rivets generally have to be hardened, tempered and coated after forming,
in order to achieve an adequate strength and corrosion resistance. A promising
approach to improve the efficiency of the rivet manufacturing is the use of high-strength
high nitrogen steel as rivet material because these additional process steps would
not be necessary anymore. As a result of the comparatively high nitrogen content,
such steels have various beneficial properties like higher strength, good ductility
and improved corrosion resistance. By cold bulk forming of high nitrogen steels
high-strength parts can be manufactured due to the strengthening which is caused
by the high strain hardening. However, high tool loads thereby have to be expected
and are a major challenge during the production process. Consequently, there is
a need for appropriate forming strategies. This paper presents key aspects concerning
the process design for the manufacturing of semi-tubular self-piercing rivets
made of high-strength steel. The aim is to produce the rivets in several forming
stages without intermediate heat treatment between the single stages. Due to the
high strain hardening of the material, a two stage forming concept will be investigated.
Cup-backward extrusion is chosen as the first process step in order to form the
rivet shank without forming the rivet foot. Thus, the strain hardening effects
in the area of the rivet foot are minimized and the tool loads during the following
process step can be reduced. During the second and final forming stage the detailed
geometry of the rivet foot and the rivet head is formed. In this context, the
effect of different variations, for example concerning the final geometry of the
rivet foot, on the tool load is investigated using multistage numerical analysis.
Furthermore, the influence of the process temperature on occurring stresses is
analysed. Based on the results of the investigations, an adequate forming strategy
and a tool concept for the manufacturing of semi-tubular self-piercing rivets
made of high-strength steel are presented.
citation:
ama: Kuball C-M, Uhe B, Meschut G, Merklein M, eds. Process Design for the Forming
of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel. Vol 50.;
2020:280-285. doi:10.1016/j.promfg.2020.08.052
apa: Kuball, C.-M., Uhe, B., Meschut, G., & Merklein, M. (Eds.). (2020). Process
design for the forming of semi-tubular self-piercing rivets made of high nitrogen
steel (Vol. 50, pp. 280–285). https://doi.org/10.1016/j.promfg.2020.08.052
bibtex: '@book{Kuball_Uhe_Meschut_Merklein_2020, series={Procedia Manufacturing},
title={Process design for the forming of semi-tubular self-piercing rivets made
of high nitrogen steel}, volume={50}, DOI={10.1016/j.promfg.2020.08.052},
year={2020}, pages={280–285}, collection={Procedia Manufacturing} }'
chicago: Kuball, Clara-Maria, Benedikt Uhe, Gerson Meschut, and Marion Merklein,
eds. Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made
of High Nitrogen Steel. Vol. 50. Procedia Manufacturing, 2020. https://doi.org/10.1016/j.promfg.2020.08.052.
ieee: C.-M. Kuball, B. Uhe, G. Meschut, and M. Merklein, Eds., Process design
for the forming of semi-tubular self-piercing rivets made of high nitrogen steel,
vol. 50. 2020, pp. 280–285.
mla: Kuball, Clara-Maria, et al., editors. Process Design for the Forming of
Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel. 2020, pp. 280–85,
doi:10.1016/j.promfg.2020.08.052.
short: C.-M. Kuball, B. Uhe, G. Meschut, M. Merklein, eds., Process Design for the
Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel, 2020.
date_created: 2020-10-12T08:30:08Z
date_updated: 2026-02-27T10:43:48Z
department:
- _id: '157'
doi: 10.1016/j.promfg.2020.08.052
editor:
- first_name: Clara-Maria
full_name: Kuball, Clara-Maria
last_name: Kuball
- first_name: Benedikt
full_name: Uhe, Benedikt
id: '38131'
last_name: Uhe
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
intvolume: ' 50'
keyword:
- high nitrogen steel
- self-piercing riveting
- joining by forming
- bulk forming
- tool design
language:
- iso: eng
page: 280-285
publication_status: published
quality_controlled: '1'
series_title: Procedia Manufacturing
status: public
title: Process design for the forming of semi-tubular self-piercing rivets made of
high nitrogen steel
type: conference_editor
user_id: '53912'
volume: 50
year: '2020'
...
---
_id: '19973'
abstract:
- lang: eng
text: As a result of lightweight design, increased use is being made of high-strength
steel and aluminium in car bodies. Self-piercing riveting is an established technique
for joining these materials. The dissimilar properties of the two materials have
led to a number of different rivet geometries in the past. Each rivet geometry
fulfils the requirements of the materials within a limited range. In the present
investigation, an improved rivet geometry is developed, which permits the reliable
joining of two material combinations that could only be joined by two different
rivet geometries up until now. Material combination 1 consists of high-strength
steel on both sides, while material combination 2 comprises aluminium on the punch
side and high-strength steel on the die side. The material flow and the stress
and strain conditions prevailing during the joining process are analysed by means
of numerical simulation. The rivet geometry is then improved step-by-step on the
basis of this analysis. Finally, the improved rivet geometry is manufactured and
the findings of the investigation are verified in experimental joining tests.
article_type: original
author:
- first_name: Benedikt
full_name: Uhe, Benedikt
id: '38131'
last_name: Uhe
- first_name: Clara-Maria
full_name: Kuball, Clara-Maria
last_name: Kuball
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Uhe B, Kuball C-M, Merklein M, Meschut G. Improvement of a rivet geometry for
the self-piercing riveting of high-strength steel and multi-material joints. Production
Engineering. 2020;14:417-423. doi:10.1007/s11740-020-00973-w
apa: Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2020). Improvement
of a rivet geometry for the self-piercing riveting of high-strength steel and
multi-material joints. Production Engineering, 14, 417–423. https://doi.org/10.1007/s11740-020-00973-w
bibtex: '@article{Uhe_Kuball_Merklein_Meschut_2020, title={Improvement of a rivet
geometry for the self-piercing riveting of high-strength steel and multi-material
joints}, volume={14}, DOI={10.1007/s11740-020-00973-w},
journal={Production Engineering}, author={Uhe, Benedikt and Kuball, Clara-Maria
and Merklein, Marion and Meschut, Gerson}, year={2020}, pages={417–423} }'
chicago: 'Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
“Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength
Steel and Multi-Material Joints.” Production Engineering 14 (2020): 417–23.
https://doi.org/10.1007/s11740-020-00973-w.'
ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Improvement of a rivet
geometry for the self-piercing riveting of high-strength steel and multi-material
joints,” Production Engineering, vol. 14, pp. 417–423, 2020, doi: 10.1007/s11740-020-00973-w.'
mla: Uhe, Benedikt, et al. “Improvement of a Rivet Geometry for the Self-Piercing
Riveting of High-Strength Steel and Multi-Material Joints.” Production Engineering,
vol. 14, 2020, pp. 417–23, doi:10.1007/s11740-020-00973-w.
short: B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Production Engineering 14
(2020) 417–423.
date_created: 2020-10-12T08:14:13Z
date_updated: 2026-02-27T10:41:55Z
department:
- _id: '157'
doi: 10.1007/s11740-020-00973-w
intvolume: ' 14'
keyword:
- Self-piercing riveting
- Joining technology
- Rivet geometry
- Multi-material design
- High-strength steel
- Aluminium
language:
- iso: eng
page: 417-423
publication: Production Engineering
publication_status: published
quality_controlled: '1'
status: public
title: Improvement of a rivet geometry for the self-piercing riveting of high-strength
steel and multi-material joints
type: journal_article
user_id: '53912'
volume: 14
year: '2020'
...
---
_id: '19974'
abstract:
- lang: eng
text: Due to the trend towards lightweight design in car body development mechanical
joining technologies become increasingly important. These techniques allow for
the joining of dissimilar materials and thus enable multi-material design, while
thermic joining methods reach their limits. Semi-tubular self-piercing riveting
is an important mechanical joining technology. The rivet production, however,
is costly and time-consuming, as the process consists of several process steps
including the heat treatment and coating of the rivets in order to achieve an
adequate strength and corrosion resistance. The use of high nitrogen steel as
rivet material leads to the possibility of reducing process steps and hence increasing
the efficiency of the process. However, the high tool loads being expected due
to the high strain hardening of the material are a major challenge during the
rivet production. Thus, there is a need for appropriate forming strategies, such
as the manufacturing of the rivets at elevated temperatures. Prior investigations
led to the conclusion that forming already at 200 °C results in a distinct reduction
of the yield strength. To create a deeper understanding of the forming behaviour
of high nitrogen steel at elevated temperatures, compression tests were conducted
in a temperature range between room temperature and 200 °C. The determined true
stress – true strain curves are the basis for the further process and tool design
of the rivet production. Another key factor for the rivet manufacturing at elevated
temperatures is the influence of the process temperature on the tribological conditions.
For this reason, ring compression tests at room temperature and 200 °C are carried
out. The friction factors are determined on the basis of calibration curves resulting
from the numerical analysis of the ring compression process. The investigations
indicate that the friction factor at 200 °C is significantly higher compared to
room temperature. This essential fact has to be taken into account for the process
and tool design for the rivet production using high nitrogen steel.
article_number: '100023'
citation:
ama: Kuball C-M, Jung R, Uhe B, Meschut G, Merklein M, eds. Influence of the
Process Temperature on the Forming Behaviour and the Friction during Bulk Forming
of High Nitrogen Steel. Vol 1.; 2020. doi:10.1016/j.jajp.2020.100023
apa: Kuball, C.-M., Jung, R., Uhe, B., Meschut, G., & Merklein, M. (Eds.). (2020).
Influence of the process temperature on the forming behaviour and the friction
during bulk forming of high nitrogen steel (No. 100023; Vol. 1). https://doi.org/10.1016/j.jajp.2020.100023
bibtex: '@book{Kuball_Jung_Uhe_Meschut_Merklein_2020, series={Journal of Advanced
Joining Processes}, title={Influence of the process temperature on the forming
behaviour and the friction during bulk forming of high nitrogen steel}, volume={1},
DOI={10.1016/j.jajp.2020.100023},
number={100023}, year={2020}, collection={Journal of Advanced Joining Processes}
}'
chicago: Kuball, Clara-Maria, R Jung, Benedikt Uhe, Gerson Meschut, and Marion Merklein,
eds. Influence of the Process Temperature on the Forming Behaviour and the
Friction during Bulk Forming of High Nitrogen Steel. Vol. 1. Journal of Advanced
Joining Processes, 2020. https://doi.org/10.1016/j.jajp.2020.100023.
ieee: C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, and M. Merklein, Eds., Influence
of the process temperature on the forming behaviour and the friction during bulk
forming of high nitrogen steel, vol. 1. 2020.
mla: Kuball, Clara-Maria, et al., editors. Influence of the Process Temperature
on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen
Steel. 100023, 2020, doi:10.1016/j.jajp.2020.100023.
short: C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, M. Merklein, eds., Influence of
the Process Temperature on the Forming Behaviour and the Friction during Bulk
Forming of High Nitrogen Steel, 2020.
date_created: 2020-10-12T08:23:27Z
date_updated: 2026-02-27T10:45:08Z
department:
- _id: '157'
doi: 10.1016/j.jajp.2020.100023
editor:
- first_name: Clara-Maria
full_name: Kuball, Clara-Maria
last_name: Kuball
- first_name: R
full_name: Jung, R
last_name: Jung
- first_name: Benedikt
full_name: Uhe, Benedikt
id: '38131'
last_name: Uhe
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
intvolume: ' 1'
keyword:
- High nitrogen steel
- Self-piercing riveting
- Joining by forming
- Bulk forming
- Strain hardening
language:
- iso: eng
publication_status: published
quality_controlled: '1'
series_title: Journal of Advanced Joining Processes
status: public
title: Influence of the process temperature on the forming behaviour and the friction
during bulk forming of high nitrogen steel
type: conference_editor
user_id: '53912'
volume: 1
year: '2020'
...