516 配管用鋼管の高周波ろう付圧接におけるフィレット形成効果の解析

概要

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The Braze-Pressure-Welding with induction heating (BPW) has been developed as a new welding method for joining ordinary steel pipes. In the BPW, a brazing filler interlaid between the mating surfaces melts at the joining temperature, then it is discharged from the joining interface by the welding pressure. The base metals are pressure-welded to each other, and the fillets are formed around the joining area by the discharged filler metals. In the previous papers, it was confirmed that the fillets made only at the outer side of joint area of pipes could relax the stress concentration by finite element analysis. In this paper, it was revealed that the even small fillets made at the both sides of joint area of pipes can relax the stress concentration, and that the fillet transfers the maximum stress site from the edge of the joining interface to the touching point of the fillet and the base material.
一般社団法人日本機械学会の論文
2003-10-17