대한용접접합학회:학술대회논문집 (Proceedings of the KWS Conference)

대한용접접합학회 (The Korean Welding and Joining Society)
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Spot Heating에 의한 용접부 피로 특성에 관한 연구

A Study on the Fatigue Characteristics at the Weldment by Spot Heating

  • 박윤기 (현대중공업 (주), 산업기술연구소) ;
  • 김현수 (현대중공업 (주), 산업기술연구소) ;
  • 신상범 (현대중공업 (주), 산업기술연구소/울산대학교) ;
  • 김경규 (현대중공업 (주), 산업기술연구소)
  • 발행 : 2005.06.23
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초록

The purpose of this study is to evaluate the effect of spot heating on the fatigue strength at the weldment. To do this, the transitional behavior of residual stress at the weld toe induced by spot heating was identified using FEA and experiment. The amount and distribution of residual stress at the weld toe strongly depends on the locations of spot heating. Based on the results, the proper spot heating condition was established. The fatigue strength of the spot-heated specimen increases compared with as-welded specimen.

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