알루미늄 판재의 전기저항 마찰교반 스폿용접에 있어서 접합강도에 관한 연구

Abstract

Vehicle weight reduction has become a recent issue of non-ferrous metals according to business efficiently for spot welding method capable of being accelerated studies. The electric resitance friction stir spot welding is efficiently welding method to two non-ferrous metals welding using the electric resistance heating with electric resistance heating. The aim of this paper is comprising the applicability of the electric resistance friction stir spot welding and design of the welding apparatus a few main factors influencing the weld strength and having optimum conditions. Thus, the electric resistance friction stir spot Welded specimens through Peel test and found the current conditions for welding, weld strength obtained through the tensile test on the basis of specific factors influence the strength and optimum welding conditions are found to have. As a result of 5052 aluminum having a thickness of 1.5mm and the electric resistance , friction stir spot welding when the energization time 90cycle, the tip diameter 10mm, the strength of current 7.6kA, the insertion depth of 0.8mm, a stirring speed of 400rpm stirring condition of the pin to the highest it was possible to obtain the weld strength , the size of the KS B ISO 18595 standard requires a minimum shear strength by about 152% could see the watering.