점용접 시 압흔 깊이 감소를 위한 최적 용접조건 선정에 관한 연구

A Study on the Optimum Welding Conditions for Reducing the Depth of Indentation of Surface in Spot Welding

  • 서승일 (한진중공업, 산업기술연구소) ;
  • 이재근 (한진중공업, 산업기술연구소) ;
  • 장상길 (한진중공업, 산업기술연구소) ;
  • 차병우 (한진중공업, 산업기술연구소)
  • 발행 : 1996.04.01

초록

In this paper, authors are trying to find optimum spot weldig conditions to minimize indentation of the plate surface which is crucial to quality of stainless rolling stocks. At first, to derive a simple equation to estimate the depth of indentation, a simplified one-dimensional bar model is proposed and validity of the model is confirmed by experiments. And also, to find proper welding conditions giving satisfied tensile strength of the welded joint, a simple formula is derived referring to the standard spot welding conditions by AWS. Optimization problem is formulated to find welding conditions such as welding current, time and applied force which give minimum indentation and proper tensile strength of joint, and solutions are found out. According to the results, the depth of indentation can be expressed by applied electrode froces and it can be shown that an optimum applied force exists.

키워드

참고문헌

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