TY - JOUR

T1 - Non-destructive Evaluation of Workpiece Properties along the Hybrid Bearing Bushing Process Chain

AU - Fricke, Lara Vivian

AU - Thürer, Susanne Elisabeth

AU - Kahra, Christoph

AU - Bährisch, Susanne

AU - Herbst, Sebastian

AU - Nürnberger, Florian

AU - Behrens, Bernd Arno

AU - Maier, Hans Jürgen

AU - Klose, Christian

AU - Barton, Sebastian

N1 - Funding Information: Open Access funding enabled and organized by Projekt DEAL. This study was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—CRC 1153—252662854, sub-projects A1, A2 and B2. The authors thank the DFG for financial support.

PY - 2023/8

Y1 - 2023/8

N2 - To combine the advantages of two materials, hybrid bulk metal workpieces are attractive for subsequent processes such as metal forming. However, hybrid materials rely on the initial bond strength for the effective transfer of applied loads. Thus, a non-destructive evaluation of the bonding along the production process chain is of high interest. To evaluate to what extent non-destructive testing can be employed to monitor the bonding quality between the joining partners steel and aluminum and to characterize the age hardening condition of the aluminum component, ultrasonic testing and electrical conductivity measurements were applied. It was found that a lateral angular co-extrusion process can create homogeneous bonding although the electrical conductivity of the aluminum is altered during processing. A previous bonding before the subsequent die forging process leads to a sufficient bonding in areas with little deformation and is therefore, advantageous compared to unjoined semi-finished products, which do not form a bonding if the deformation ratio is too small.

AB - To combine the advantages of two materials, hybrid bulk metal workpieces are attractive for subsequent processes such as metal forming. However, hybrid materials rely on the initial bond strength for the effective transfer of applied loads. Thus, a non-destructive evaluation of the bonding along the production process chain is of high interest. To evaluate to what extent non-destructive testing can be employed to monitor the bonding quality between the joining partners steel and aluminum and to characterize the age hardening condition of the aluminum component, ultrasonic testing and electrical conductivity measurements were applied. It was found that a lateral angular co-extrusion process can create homogeneous bonding although the electrical conductivity of the aluminum is altered during processing. A previous bonding before the subsequent die forging process leads to a sufficient bonding in areas with little deformation and is therefore, advantageous compared to unjoined semi-finished products, which do not form a bonding if the deformation ratio is too small.

KW - aluminum

KW - bond evaluation

KW - hybrid bulk metal component

KW - non-destructive testing

KW - process chain monitoring

KW - steel

KW - tailored forming

UR - http://www.scopus.com/inward/record.url?scp=85141573643&partnerID=8YFLogxK

U2 - 10.1007/s11665-022-07598-3

DO - 10.1007/s11665-022-07598-3

M3 - Article

AN - SCOPUS:85141573643

VL - 32

SP - 7004

EP - 7015

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

SN - 1059-9495

IS - 15

ER -