Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Investigation of Abnormal Wear of Jig in Electric Resistance Welding

전기저항 용접 시 발생하는 지그의 비정상 마모현상 원인 분석

  • 김선호 (동의대학교 메카트로닉스공학과) ;
  • 조행득 (현대자동차 포항서비스센터)
  • Received : 2015.01.03
  • Accepted : 2015.01.26
  • Published : 2015.02.28
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Abstract

This paper presents an investigation of abnormal wear of a contact jig between a nail and a nail fixture in electric resistance welding. To perform an analysis on the abnormal wear phenomenon, several methods are provided. Based on the theory of electric resistance welding, are analyzed. Using microscopic analysis, surface craters are observed. In the measurement of the electric current flow in the nail fixture, the current flow distribution is measured. From several analyses, the cause of abnormal wear in the contact jig is measured using the electric discharge of high current density at the inflow point of the electric supply to the nail fixture. An alternative shape for normal wear is proposed.

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References

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