Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Material Forming, ESAFORM 2024 |
| Herausgeber/-innen | Anna Carla Araujo, Arthur Cantarel, France Chabert, Adrian Korycki, Philippe Olivier, Fabrice Schmidt |
| Seiten | 792-801 |
| Seitenumfang | 10 |
| Publikationsstatus | Veröffentlicht - 2024 |
| Veranstaltung | 27th International ESAFORM Conference on Material Forming, ESAFORM 2024 - Toulouse, Frankreich Dauer: 24 Apr. 2024 → 26 Apr. 2024 |
Publikationsreihe
| Name | Materials Research Proceedings |
|---|---|
| Band | 41 |
| ISSN (Print) | 2474-3941 |
| ISSN (elektronisch) | 2474-395X |
Abstract
Hybrid material compounds offer an extension of the technological application range of monolithic components by combining positive material-specific properties. In the case of steel and aluminium, a load-adapted component with high strength areas and a reduced weight can be created. Tailored Forming enables the joining zone created by a pre-joining process to be modified and enhanced by a subsequent forming step. Derived from previous studies, an enlarged joining zone interface through spherical joining zone curvature and an equalisation of yield stresses through an inhomogeneous induction heating with partial cooling are necessary to achieve a defect free bond with high strength and ductility. In order to further enlarge the joining zone interface and hence to increase the surface ratio of juvenile welding spots without brittle intermetallic compounds, different local plastic strains are induced. Additionally, an alternative spray cooling concept is used to evaluate the effect of steeper temperature gradients on the bond quality. Rotary friction welded specimens made of 20MnCr5 steel and EN AW-6082 aluminium are cup backward extruded with different extrusion ratios using punch diameters of 22 mm and 30 mm. Metallographic images, SEM analysis and hardness tests of cross-sections are used to evaluate the bond quality with regard to the joining zone formation, occurring defects and the resulting intermetallic compound. With cooling, higher yield stresses could be set in the aluminium, which counteract material failure even with larger punch diameters due to a higher deformability. However, the surface enlargement of the joining zone is reduced. Despite the higher surface enlargement in uncooled specimens, insufficient bonds were achieved due to existing cracks in the aluminium in or near the joining zone interface, as well as significant thicker intermetallic compounds.
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Material Forming, ESAFORM 2024. Hrsg. / Anna Carla Araujo; Arthur Cantarel; France Chabert; Adrian Korycki; Philippe Olivier; Fabrice Schmidt. 2024. S. 792-801 (Materials Research Proceedings; Band 41).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium
AU - Piwek, Armin
AU - Peddinghaus, Julius
AU - Uhe, Johanna
AU - Brunotte, Kai
N1 - Publisher Copyright: © 2024, Association of American Publishers. All rights reserved.
PY - 2024
Y1 - 2024
N2 - Hybrid material compounds offer an extension of the technological application range of monolithic components by combining positive material-specific properties. In the case of steel and aluminium, a load-adapted component with high strength areas and a reduced weight can be created. Tailored Forming enables the joining zone created by a pre-joining process to be modified and enhanced by a subsequent forming step. Derived from previous studies, an enlarged joining zone interface through spherical joining zone curvature and an equalisation of yield stresses through an inhomogeneous induction heating with partial cooling are necessary to achieve a defect free bond with high strength and ductility. In order to further enlarge the joining zone interface and hence to increase the surface ratio of juvenile welding spots without brittle intermetallic compounds, different local plastic strains are induced. Additionally, an alternative spray cooling concept is used to evaluate the effect of steeper temperature gradients on the bond quality. Rotary friction welded specimens made of 20MnCr5 steel and EN AW-6082 aluminium are cup backward extruded with different extrusion ratios using punch diameters of 22 mm and 30 mm. Metallographic images, SEM analysis and hardness tests of cross-sections are used to evaluate the bond quality with regard to the joining zone formation, occurring defects and the resulting intermetallic compound. With cooling, higher yield stresses could be set in the aluminium, which counteract material failure even with larger punch diameters due to a higher deformability. However, the surface enlargement of the joining zone is reduced. Despite the higher surface enlargement in uncooled specimens, insufficient bonds were achieved due to existing cracks in the aluminium in or near the joining zone interface, as well as significant thicker intermetallic compounds.
AB - Hybrid material compounds offer an extension of the technological application range of monolithic components by combining positive material-specific properties. In the case of steel and aluminium, a load-adapted component with high strength areas and a reduced weight can be created. Tailored Forming enables the joining zone created by a pre-joining process to be modified and enhanced by a subsequent forming step. Derived from previous studies, an enlarged joining zone interface through spherical joining zone curvature and an equalisation of yield stresses through an inhomogeneous induction heating with partial cooling are necessary to achieve a defect free bond with high strength and ductility. In order to further enlarge the joining zone interface and hence to increase the surface ratio of juvenile welding spots without brittle intermetallic compounds, different local plastic strains are induced. Additionally, an alternative spray cooling concept is used to evaluate the effect of steeper temperature gradients on the bond quality. Rotary friction welded specimens made of 20MnCr5 steel and EN AW-6082 aluminium are cup backward extruded with different extrusion ratios using punch diameters of 22 mm and 30 mm. Metallographic images, SEM analysis and hardness tests of cross-sections are used to evaluate the bond quality with regard to the joining zone formation, occurring defects and the resulting intermetallic compound. With cooling, higher yield stresses could be set in the aluminium, which counteract material failure even with larger punch diameters due to a higher deformability. However, the surface enlargement of the joining zone is reduced. Despite the higher surface enlargement in uncooled specimens, insufficient bonds were achieved due to existing cracks in the aluminium in or near the joining zone interface, as well as significant thicker intermetallic compounds.
KW - Friction Welding
KW - Hot Forging
KW - Joining Zone
KW - Spray Cooling
KW - Tailored Forming
UR - http://www.scopus.com/inward/record.url?scp=85195893259&partnerID=8YFLogxK
U2 - 10.21741/9781644903131-87
DO - 10.21741/9781644903131-87
M3 - Conference contribution
AN - SCOPUS:85195893259
SN - 9781644903131
T3 - Materials Research Proceedings
SP - 792
EP - 801
BT - Material Forming, ESAFORM 2024
A2 - Araujo, Anna Carla
A2 - Cantarel, Arthur
A2 - Chabert, France
A2 - Korycki, Adrian
A2 - Olivier, Philippe
A2 - Schmidt, Fabrice
T2 - 27th International ESAFORM Conference on Material Forming, ESAFORM 2024
Y2 - 24 April 2024 through 26 April 2024
ER -