公开(公告)号：US20200324358A1

公开(公告)日：2020-10-15

申请号：US16382473

申请日：2019-04-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  Jahnavi Narkar ,  Craig D. Reynolds

IPC: B23K11/20 ,  B23K11/00 ,  B23K11/02 ,  B23K11/11

Abstract: A method of resistance welding first and second parts formed of dissimilar materials includes disposing a first electrode on a side of the first part and a second electrode on a side of the second part. Grooves separated by raised portions are formed in a faying surface of the second part. Pressure is applied to the first and second parts via the set of electrodes, and the parts are heated via the electrodes to form a joint between the parts. A welded assembly includes metallic first and second parts welded together. The second part may have a faying surface defining a number of grooves separated by raised portions. The faying surfaces of the parts may be disposed at 10-80 degree angles with respect to a first part axis (and/or a welding pressure axis).