---
_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: '65373'
abstract:
- lang: eng
text: To reduce CO₂ emissions, the automotive industry is adopting multi-material
structures. Fusion-based joining reaches its limits for aluminium–steel due to
brittle intermetallic phases and mismatched thermophysical properties; therefore,
mechanical joining (e.g., SPR) is used. Though conventional SPR requires tool
changes for different stack-ups. Versatile self-piercing riveting (V-SPR) addresses
this with an extended punch actuator and a multi-range-capable rivet (Kappe in
PERD16:363–378, 2022), enabling joints up to 600 MPa across varying thicknesses
without retooling. With the use of ultra-high-strength steels up to 1000 MPa,
optimisation is required. This study quantifies how rivet shank geometry affects
joint formation using a design of experiments and validated 2D axisymmetric FE
simulations. The optimum depends strongly on the material system. For CP1000–EN
AW-6014, maximum interlock f is predicted for a medium shank thickness of about
0.73 mm, a small internal foot radius of 0.620 mm, and a deeper drill depth of
3.136 mm, yielding f fc =0.4503 mm with a desirability of 0.954. For EN AW-6014–EN
AW-6014, the optimum shifts to a thinner shank of 0.670 mm, a larger internal
foot radius of 0.820 mm and a shallow drill depth of 2.30 mm, giving ffc = 0.3023
mm with a desirability of 1.0. A compromise geometry of 0.713 mm shank thickness,
0.776 mm internal foot radius and 2.755 mm drill depth achieves ffc = 0.3641 mm
for CP1000–aluminium and ffc = 0.1851 mm for aluminium–aluminium with an overall
desirability D = 0.6378, expanding V-SPR to ultra-high-strength steel–aluminium
joints while maintaining aluminium joinability.
article_number: '43'
author:
- first_name: Pia Katharina
full_name: Kaimann, Pia Katharina
id: '44935'
last_name: Kaimann
- first_name: Nico
full_name: Ritter, Nico
last_name: Ritter
- 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: Kaimann PK, Ritter N, Bobbert M, Meschut G. Influence of the shank geometry
on the joint formation of the versatile self-piercing riveting of ultra-high-strength
steel-aluminium and aluminium-aluminium assemblies. Discover Mechanical Engineering.
2026;5(1). doi:10.1007/s44245-026-00221-y
apa: Kaimann, P. K., Ritter, N., Bobbert, M., & Meschut, G. (2026). Influence
of the shank geometry on the joint formation of the versatile self-piercing riveting
of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies. Discover
Mechanical Engineering, 5(1), Article 43. https://doi.org/10.1007/s44245-026-00221-y
bibtex: '@article{Kaimann_Ritter_Bobbert_Meschut_2026, title={Influence of the shank
geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength
steel-aluminium and aluminium-aluminium assemblies}, volume={5}, DOI={10.1007/s44245-026-00221-y},
number={143}, journal={Discover Mechanical Engineering}, publisher={Springer Science
and Business Media LLC}, author={Kaimann, Pia Katharina and Ritter, Nico and Bobbert,
Mathias and Meschut, Gerson}, year={2026} }'
chicago: Kaimann, Pia Katharina, Nico Ritter, Mathias Bobbert, and Gerson Meschut.
“Influence of the Shank Geometry on the Joint Formation of the Versatile Self-Piercing
Riveting of Ultra-High-Strength Steel-Aluminium and Aluminium-Aluminium Assemblies.”
Discover Mechanical Engineering 5, no. 1 (2026). https://doi.org/10.1007/s44245-026-00221-y.
ieee: 'P. K. Kaimann, N. Ritter, M. Bobbert, and G. Meschut, “Influence of the shank
geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength
steel-aluminium and aluminium-aluminium assemblies,” Discover Mechanical Engineering,
vol. 5, no. 1, Art. no. 43, 2026, doi: 10.1007/s44245-026-00221-y.'
mla: Kaimann, Pia Katharina, et al. “Influence of the Shank Geometry on the Joint
Formation of the Versatile Self-Piercing Riveting of Ultra-High-Strength Steel-Aluminium
and Aluminium-Aluminium Assemblies.” Discover Mechanical Engineering, vol.
5, no. 1, 43, Springer Science and Business Media LLC, 2026, doi:10.1007/s44245-026-00221-y.
short: P.K. Kaimann, N. Ritter, M. Bobbert, G. Meschut, Discover Mechanical Engineering
5 (2026).
date_created: 2026-04-08T08:25:32Z
date_updated: 2026-04-08T08:34:40Z
department:
- _id: '43'
- _id: '157'
doi: 10.1007/s44245-026-00221-y
intvolume: ' 5'
issue: '1'
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: TRR 285 - Project Area C
- _id: '146'
name: TRR 285 - Subproject C02
publication: Discover Mechanical Engineering
publication_identifier:
issn:
- 2731-6564
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Influence of the shank geometry on the joint formation of the versatile self-piercing
riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies
type: journal_article
user_id: '44935'
volume: 5
year: '2026'
...
---
_id: '58495'
abstract:
- lang: eng
text: To reduce CO2 emissions, the industry, particularly
in the mobility sector, focuses on lightweight vehicles with multi-material structures.
As thermal joining processes are reaching their limits, mechanical techniques
such as self-piercing riveting are being used. One innovative solution is the
versatile self-piercing riveting process (V-SPR), which combines different material
combinations with a multi-range rivet. 1 The joining process
is divided into the piercing process and the forming process of the rivet head
to the respective sheet thickness. The rivet shaft requires sufficient strength
to punch through the punch-sided sheet, and sufficient ductility of the rivet
head is required to form onto the punch-sided sheet. To achieve a combination
of these requirements, local inductive heat treatment strategies are used for
the rivet. To ensure reproducible rivet hardening, a specialised device has been
developed for precise rivet positioning in the induction coil and the subsequent
quenching process. The heat treatment differs in terms of hardening times and
temperatures. In addition, the heat treatment is combined with a subsequent tempering
process. The study aims to determine the resulting hardness distributions and
microstructures of the rivet and to investigate the influence of different heat
treatment strategies on joint formation and load-bearing capacities. The results
show that a graded hardening profile has a positive effect on the spreading behaviour
of the rivet foot and the forming behaviour of the rivet head. Furthermore, the
load-bearing behaviour of the joints is increased.
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Paula
full_name: Probst, Paula
last_name: Probst
- 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: 'Holtkamp PK, Kappe F, Probst P, Bobbert M, Meschut G. Investigation of local
heat treatment strategies for a multi-range capable rivet and the influence on
joint formation and load-bearing capacity. Proceedings of the Institution of
Mechanical Engineers, Part L: Journal of Materials: Design and Applications.
Published online 2025. doi:10.1177/14644207241307508'
apa: 'Holtkamp, P. K., Kappe, F., Probst, P., Bobbert, M., & Meschut, G. (2025).
Investigation of local heat treatment strategies for a multi-range capable rivet
and the influence on joint formation and load-bearing capacity. Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications. https://doi.org/10.1177/14644207241307508'
bibtex: '@article{Holtkamp_Kappe_Probst_Bobbert_Meschut_2025, title={Investigation
of local heat treatment strategies for a multi-range capable rivet and the influence
on joint formation and load-bearing capacity}, DOI={10.1177/14644207241307508},
journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications}, publisher={SAGE Publications}, author={Holtkamp,
Pia Katharina and Kappe, Fabian and Probst, Paula and Bobbert, Mathias and Meschut,
Gerson}, year={2025} }'
chicago: 'Holtkamp, Pia Katharina, Fabian Kappe, Paula Probst, Mathias Bobbert,
and Gerson Meschut. “Investigation of Local Heat Treatment Strategies for a Multi-Range
Capable Rivet and the Influence on Joint Formation and Load-Bearing Capacity.”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
Materials: Design and Applications, 2025. https://doi.org/10.1177/14644207241307508.'
ieee: 'P. K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, and G. Meschut, “Investigation
of local heat treatment strategies for a multi-range capable rivet and the influence
on joint formation and load-bearing capacity,” Proceedings of the Institution
of Mechanical Engineers, Part L: Journal of Materials: Design and Applications,
2025, doi: 10.1177/14644207241307508.'
mla: 'Holtkamp, Pia Katharina, et al. “Investigation of Local Heat Treatment Strategies
for a Multi-Range Capable Rivet and the Influence on Joint Formation and Load-Bearing
Capacity.” Proceedings of the Institution of Mechanical Engineers, Part L:
Journal of Materials: Design and Applications, SAGE Publications, 2025, doi:10.1177/14644207241307508.'
short: 'P.K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, G. Meschut, Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications (2025).'
date_created: 2025-02-03T09:26:32Z
date_updated: 2025-02-03T09:36:32Z
department:
- _id: '43'
- _id: '157'
doi: 10.1177/14644207241307508
language:
- iso: eng
project:
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications'
publication_identifier:
issn:
- 1464-4207
- 2041-3076
publication_status: published
publisher: SAGE Publications
quality_controlled: '1'
status: public
title: Investigation of local heat treatment strategies for a multi-range capable
rivet and the influence on joint formation and load-bearing capacity
type: journal_article
user_id: '44935'
year: '2025'
...
---
_id: '60440'
abstract:
- lang: eng
text: The versatile self-pierce riveting (V-SPR) is a further development of semi-tubular
self-pierce riveting. V-SPR enables adaptation to changing boundary conditions,
such as a change in the material thickness combination, without varying the rivet
die combination due to increased punch actuation and the use of multi-range capable
rivets [1]. The inner punch first sets the rivet. The outer punch then forms the
rivet head to the respective sheet thickness. For this, the rivet requires a hard
shank and a ductile rivet head, which is achieved by an inductive local hardening
process [2]. Until now, the joint formation of rivets with graded hardness profile
has been challenging to estimate in the FEM simulation due to the inhomogeneous
material conditions in the rivet. In this study, a method capable of reproducing
the experimentally determined hardness levels of rivets in detail is shown. This
FE model enables the realistic modelling of the mechanical properties of the rivet
on the basis of the hardness profile in order to predict the correct deformation
processes and stresses during the riveting process. First, the detailed experimental
hardness mapping of the locally heat-treated rivets is transferred into the FE
model. The FEM material model can predict the local strength of the rivet based
on hardness by scaling the flow curves. To estimate the predictive capability
of the FEM model, the joint formation of rivets with different graded hardness
profiles is compared experimentally and simulative. Based on the validated model,
the influence of different rivet hardness profiles on the joint formation is analysed
numerically. By adapting the material model, a high level of correlation between
the experiment's joint formation and the simulation can be achieved.
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- 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: 'Holtkamp PK, Bielak CR, Bobbert M, Meschut G. Simulation of the joining process
of graded hardened multi-range capable rivets. In: Materials Research Proceedings.
Vol 54. Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-153'
apa: Holtkamp, P. K., Bielak, C. R., Bobbert, M., & Meschut, G. (2025). Simulation
of the joining process of graded hardened multi-range capable rivets. Materials
Research Proceedings, 54. https://doi.org/10.21741/9781644903599-153
bibtex: '@inproceedings{Holtkamp_Bielak_Bobbert_Meschut_2025, title={Simulation
of the joining process of graded hardened multi-range capable rivets}, volume={54},
DOI={10.21741/9781644903599-153},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Holtkamp, Pia Katharina and Bielak, Christian Roman and Bobbert,
Mathias and Meschut, Gerson}, year={2025} }'
chicago: Holtkamp, Pia Katharina, Christian Roman Bielak, Mathias Bobbert, and Gerson
Meschut. “Simulation of the Joining Process of Graded Hardened Multi-Range Capable
Rivets.” In Materials Research Proceedings, Vol. 54. Materials Research
Forum LLC, 2025. https://doi.org/10.21741/9781644903599-153.
ieee: 'P. K. Holtkamp, C. R. Bielak, M. Bobbert, and G. Meschut, “Simulation of
the joining process of graded hardened multi-range capable rivets,” in Materials
Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-153.'
mla: Holtkamp, Pia Katharina, et al. “Simulation of the Joining Process of Graded
Hardened Multi-Range Capable Rivets.” Materials Research Proceedings, vol.
54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-153.
short: 'P.K. Holtkamp, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research
Proceedings, Materials Research Forum LLC, 2025.'
date_created: 2025-06-27T08:23:00Z
date_updated: 2026-02-24T14:12:10Z
department:
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903599-153
intvolume: ' 54'
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Simulation of the joining process of graded hardened multi-range capable rivets
type: conference
user_id: '7850'
volume: 54
year: '2025'
...
---
_id: '58807'
abstract:
- lang: eng
text: "One of the most important strategies for reducing CO2 emissions in the mobility
sector is lightweight construction. In particular, the car body offers several
opportunities for weight reduction. Multi-material designs are increasingly being
applied to select the most suitable material for the respective load and ultimately
achieve synergy effects. For example, aluminium castings are used at the nodes
of a spaceframe body. Subsequently, these are joined with profiles to form the
bodyshell. To join different materials mechanical joining techniques, such as
semi-tubular self-piercing riveting, are deployed. According to the current state
of the art, cracks occur in the aluminium castings during the mechanical joining
process as a result of the high degree of deformation. Although the aluminium
casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent
castability. In particular, the ability to cast thin structural parts is enabled
by the low liquidus point of the near eutectic aluminium casting alloys.\r\nThis
study addresses the mechanical joining properties of the near eutectic aluminium
casting alloy AlSi12, depending on different microstructures. These are achieved
by annealing processes and modifying agents. Through an adapted heat treatment,
the previously lamellar morphology can be transformed into a globular morphology,
which leads to increased ductility and prevents the formation of cracks during
the self-piercing riveting (SPR). The joinability is investigated using different
die geometries, whereas the joint formation is analysed regarding crack initiation.
To evaluate the increased ductility, microstructural and mechanical tests are
performed and finally, a microstructure-joinability correlation is established."
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Safak
full_name: Yildiz, Safak
last_name: Yildiz
- 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, Holtkamp PK, Hoyer K-P, et al. Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. Published online 2025. doi:10.1177/14644207251319922'
apa: 'Neuser, M., Holtkamp, P. K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert,
M., Meschut, G., & Schaper, M. (2025). Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. 5th International Conference on Materials
Design and Applications 2024, Porto, Portugal. https://doi.org/10.1177/14644207251319922'
bibtex: '@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025,
title={Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12}, DOI={10.1177/14644207251319922},
journal={The Journal of Materials: Design and Applications, Part L}, publisher={Sage
Publications}, author={Neuser, Moritz and Holtkamp, Pia Katharina and Hoyer, Kay-Peter
and Kappe, Fabian and Yildiz, Safak and Bobbert, Mathias and Meschut, Gerson and
Schaper, Mirko}, year={2025} }'
chicago: 'Neuser, Moritz, Pia Katharina Holtkamp, Kay-Peter Hoyer, Fabian Kappe,
Safak Yildiz, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical
Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.”
The Journal of Materials: Design and Applications, Part L, 2025. https://doi.org/10.1177/14644207251319922.'
ieee: 'M. Neuser et al., “Mechanical properties and joinability of the near-eutectic
aluminium casting alloy AlSi12,” The Journal of Materials: Design and Applications,
Part L, 2025, doi: 10.1177/14644207251319922.'
mla: 'Neuser, Moritz, et al. “Mechanical Properties and Joinability of the Near-Eutectic
Aluminium Casting Alloy AlSi12.” The Journal of Materials: Design and Applications,
Part L, Sage Publications, 2025, doi:10.1177/14644207251319922.'
short: 'M. Neuser, P.K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert,
G. Meschut, M. Schaper, The Journal of Materials: Design and Applications, Part
L (2025).'
conference:
end_date: 2024-07-05
location: Porto, Portugal
name: 5th International Conference on Materials Design and Applications 2024
start_date: 2024-07-04
date_created: 2025-02-24T10:25:31Z
date_updated: 2025-02-24T12:25:04Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1177/14644207251319922
has_accepted_license: '1'
keyword:
- aluminium
- casting
- microstructure
- joinability
- self-piercing riveting
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: 'The Journal of Materials: Design and Applications, Part L'
publication_status: published
publisher: Sage Publications
quality_controlled: '1'
status: public
title: Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12
type: journal_article
user_id: '32340'
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: '60441'
abstract:
- lang: eng
text: Conventional mechanical joining processes are typically rigid in their tool
systems and can only react to changing process and disturbance variables to a
limited extent. At the same time, various industries are increasingly trending
towards multi-material systems consisting of parts with varying geometric and
mechanical properties. Due to the varying properties, rigid mechanical joining
processes require sampling procedures and periodic changes of tool components
or auxiliary joining parts. Consequently, research is focusing on versatile mechanical
joining processes that allow increased control by modifying the process parameters.
Two processes based on self-piercing riveting can achieve a significant increase
in process influence possibilities through a multi-linear actuator as versatile
self-piercing riveting (V-SPR) and a tumbling superimposed actuator as tumbling
self-piercing riveting (T-SPR). Initial research into V-SPR has shown that this
process can be used to achieve a higher variation in overall package thickness
by adapting the rivet geometry and using multiple linear actuators. The T-SPR
process also enables increased material flow control by means of targeted compression
of the rivet using the tumbling actuator, thereby extending the range of joints
that can be manufactured. Based on these two processes, a combination of the two
mechanisms of action is to be developed.
article_number: '01069'
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Holtkamp PK, Wituschek S, Lechner M, Meschut G. Integration of multiple-linear
and tumbling kinematics into self-piercing riveting. MATEC Web of Conferences.
2025;408. doi:10.1051/matecconf/202540801069
apa: Holtkamp, P. K., Wituschek, S., Lechner, M., & Meschut, G. (2025). Integration
of multiple-linear and tumbling kinematics into self-piercing riveting. MATEC
Web of Conferences, 408, Article 01069. https://doi.org/10.1051/matecconf/202540801069
bibtex: '@article{Holtkamp_Wituschek_Lechner_Meschut_2025, title={Integration of
multiple-linear and tumbling kinematics into self-piercing riveting}, volume={408},
DOI={10.1051/matecconf/202540801069},
number={01069}, journal={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Holtkamp, Pia Katharina and Wituschek, Simon and Lechner, Michael and
Meschut, Gerson}, year={2025} }'
chicago: Holtkamp, Pia Katharina, Simon Wituschek, Michael Lechner, and Gerson Meschut.
“Integration of Multiple-Linear and Tumbling Kinematics into Self-Piercing Riveting.”
MATEC Web of Conferences 408 (2025). https://doi.org/10.1051/matecconf/202540801069.
ieee: 'P. K. Holtkamp, S. Wituschek, M. Lechner, and G. Meschut, “Integration of
multiple-linear and tumbling kinematics into self-piercing riveting,” MATEC
Web of Conferences, vol. 408, Art. no. 01069, 2025, doi: 10.1051/matecconf/202540801069.'
mla: Holtkamp, Pia Katharina, et al. “Integration of Multiple-Linear and Tumbling
Kinematics into Self-Piercing Riveting.” MATEC Web of Conferences, vol.
408, 01069, EDP Sciences, 2025, doi:10.1051/matecconf/202540801069.
short: P.K. Holtkamp, S. Wituschek, M. Lechner, G. Meschut, MATEC Web of Conferences
408 (2025).
date_created: 2025-06-27T08:27:42Z
date_updated: 2025-06-27T08:34:46Z
department:
- _id: '43'
- _id: '157'
doi: 10.1051/matecconf/202540801069
intvolume: ' 408'
language:
- iso: eng
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: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Integration of multiple-linear and tumbling kinematics into self-piercing riveting
type: journal_article
user_id: '44935'
volume: 408
year: '2025'
...
---
_id: '60439'
abstract:
- lang: eng
text: Abstract. Mechanical joints are traditionally analyzed through destructive
micrograph analysis, which may compromise internal geometry and morphology, as
evidenced by radial cracks in semi-tubular self-pierce riveting. In contrast,
industrial X-ray computed tomography (XCT) offers a non-destructive method for
component diagnosis, providing volumetric insights without damaging the sample
and enabling dimensional measurement. The DFG-funded Collaborative Research Center
TRR 285 is exploring XCT's application in assessing mechanical joinability across
various joining processes and materials, particularly in multi-material systems
like steel-aluminum joints. XCT faces challenges in accurately capturing multi-material
compositions, leading to artifacts that complicate interface detection. This research
aims to validate XCT for joint investigations, yielding quantitative characteristics
that surpass those from traditional micrograph analysis.
author:
- first_name: M.
full_name: Lechner, M.
last_name: Lechner
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Matthias
full_name: Busch, Matthias
id: '83421'
last_name: Busch
orcid: https://orcid.org/0000-0002-8456-3374
- first_name: A.
full_name: Harms, A.
last_name: Harms
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
citation:
ama: 'Lechner M, Borgert T, Busch M, et al. Non-destructive testing in versatile
joining processes. In: Materials Research Proceedings. Vol 52. Materials
Research Forum LLC; 2025. doi:10.21741/9781644903551-12'
apa: Lechner, M., Borgert, T., Busch, M., Harms, A., Holtkamp, P. K., Römisch, D.,
Wituschek, S., & Kappe, F. (2025). Non-destructive testing in versatile joining
processes. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-12
bibtex: '@inproceedings{Lechner_Borgert_Busch_Harms_Holtkamp_Römisch_Wituschek_Kappe_2025,
title={Non-destructive testing in versatile joining processes}, volume={52}, DOI={10.21741/9781644903551-12},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lechner, M. and Borgert, Thomas and Busch, Matthias and Harms, A.
and Holtkamp, Pia Katharina and Römisch, D. and Wituschek, Simon and Kappe, Fabian},
year={2025} }'
chicago: Lechner, M., Thomas Borgert, Matthias Busch, A. Harms, Pia Katharina Holtkamp,
D. Römisch, Simon Wituschek, and Fabian Kappe. “Non-Destructive Testing in Versatile
Joining Processes.” In Materials Research Proceedings, Vol. 52. Materials
Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-12.
ieee: 'M. Lechner et al., “Non-destructive testing in versatile joining processes,”
in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-12.'
mla: Lechner, M., et al. “Non-Destructive Testing in Versatile Joining Processes.”
Materials Research Proceedings, vol. 52, Materials Research Forum LLC,
2025, doi:10.21741/9781644903551-12.
short: 'M. Lechner, T. Borgert, M. Busch, A. Harms, P.K. Holtkamp, D. Römisch, S.
Wituschek, F. Kappe, in: Materials Research Proceedings, Materials Research Forum
LLC, 2025.'
date_created: 2025-06-27T07:56:32Z
date_updated: 2025-06-27T08:17:00Z
department:
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-12
intvolume: ' 52'
language:
- iso: eng
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: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Non-destructive testing in versatile joining processes
type: conference
user_id: '44935'
volume: 52
year: '2025'
...