Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium

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OriginalspracheEnglisch
Titel des SammelwerksMaterial Forming, ESAFORM 2024
Herausgeber/-innenAnna Carla Araujo, Arthur Cantarel, France Chabert, Adrian Korycki, Philippe Olivier, Fabrice Schmidt
Seiten792-801
Seitenumfang10
PublikationsstatusVeröffentlicht - 2024
Veranstaltung27th International ESAFORM Conference on Material Forming, ESAFORM 2024 - Toulouse, Frankreich
Dauer: 24 Apr. 202426 Apr. 2024

Publikationsreihe

NameMaterials Research Proceedings
Band41
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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Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium. / Piwek, Armin; Peddinghaus, Julius; Uhe, Johanna et al.
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/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Piwek, A, Peddinghaus, J, Uhe, J & Brunotte, K 2024, Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium. in AC Araujo, A Cantarel, F Chabert, A Korycki, P Olivier & F Schmidt (Hrsg.), Material Forming, ESAFORM 2024. Materials Research Proceedings, Bd. 41, S. 792-801, 27th International ESAFORM Conference on Material Forming, ESAFORM 2024, Toulouse, Frankreich, 24 Apr. 2024. https://doi.org/10.21741/9781644903131-87
Piwek, A., Peddinghaus, J., Uhe, J., & Brunotte, K. (2024). Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium. In A. C. Araujo, A. Cantarel, F. Chabert, A. Korycki, P. Olivier, & F. Schmidt (Hrsg.), Material Forming, ESAFORM 2024 (S. 792-801). (Materials Research Proceedings; Band 41). https://doi.org/10.21741/9781644903131-87
Piwek A, Peddinghaus J, Uhe J, Brunotte K. Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium. in Araujo AC, Cantarel A, Chabert F, Korycki A, Olivier P, Schmidt F, Hrsg., Material Forming, ESAFORM 2024. 2024. S. 792-801. (Materials Research Proceedings). doi: 10.21741/9781644903131-87
Piwek, Armin ; Peddinghaus, Julius ; Uhe, Johanna et al. / Influence of enlarged joining zone interfaces on the bond properties of tailored formed hybrid components made of 20MnCr5 steel and EN AW-6082 aluminium. 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).
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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

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T2 - 27th International ESAFORM Conference on Material Forming, ESAFORM 2024

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ER -

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