May 12, 2021
Conference Paper

Dissimilar joining of ZEK100 and AA6022 for automotive application

Abstract

Mg and Al joining is problematic due to different high temperature flow characteristics that often results in weld defects and brittle intermetallic compounds (IMC). We present process development on lap joining of 1.27 mm 6022 (top sheet) and 1.5mm ZEK100 (bottom sheet) for an automotive door application. We conducted process development in linear welding using power control mode (modulating torque and spindle speed) with multiple tool designs, and welding parameters. Process variables were correlated to joint micro-structure and mechanical properties. A 2D computational model was created to understand the failure mechanism and contribution of mechanical interlocking towards joint strength. For a thin (

Published: May 12, 2021

Citation

Das H., P. Upadhyay, S.S. Kulkarni, and W. Choi. 2021. Dissimilar joining of ZEK100 and AA6022 for automotive application. In Friction Stir Welding and Processing XI. The Minerals, Metals & Materials Series, edited by Y. Hovanski, et al. Cham:Springer. PNNL-SA-156101. doi:10.1007/978-3-030-65265-4_11

Research topics

Solid Phase Processing