Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 11, 2022 - September 14, 2022
Automobile bodies are assembled by resistance spot welding of 3,000 to 6,000 points per car, mainly on pressed thin plate components. In this study, a low-power, high-strength joint was investigated by inserting a low boiling point compound into the joint interface and using the vaporization and volume expansion of the compound caused by heat during resistance welding to break down the oxide film and increase the area of strong joint. As a result，higher tensile strength was obtained than that of the non-inserted joint.
