전기저항가열 압출점접합공정에 있어서 접합강도에 관한 연구

Abstract

Recently aluminum alloy material for the car as much light has been highlighted. But aluminum plate welding by resistance welding process is difficult. So in several research groups are trying to weld efficiently aluminum alloys. Among them, electric resistance heated extru-riveting spot welding is one of the ways to weld efficiently two sheets aluminum plate. This paper are covered basic research for the practical application of aluminum plates weld by extru-riveting spot welding. The main purpose of this paper is to evaluate the welding performance of aluminum plates that welded by extru-riveting spot weldid. In this study, extru-riveting electrodes corresponding to the circumscribed-cir cle diameter and the diameter at the end of the electrode according to the simulations, simple test for determining the electrode material, extru-riveting spot welding equipment design, preceding experiment for finding energization time and current power, tensile shear test was performed in sequence. As a result, For the aluminum plate with a thickness of 1mm, It was found that extru-riveting spot welding is available when electric