대한용접접합학회:학술대회논문집 (Proceedings of the KWS Conference)

대한용접접합학회 (The Korean Welding and Joining Society)
권호 표지

스테인리스강의 Nd:YAG 레이저 겹치기 용접부 피로수명에 미치는 용접변수의 영향

Effects of Nd:YAG Laser Welding Parameters on Fatigue Life of Lap Joint Structure in Stainless Steel

  • 김용 (고등기술연구원 로봇/생산기술센터) ;
  • 양현석 (고등기술연구원 로봇/생산기술센터) ;
  • 박기영 (고등기술연구원 로봇/생산기술센터) ;
  • 이경돈 (고등기술연구원 로봇/생산기술센터)
  • 발행 : 2007.11.15
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초록

Experimental analysis was carried out to understand the fatigue phenomena of different thickness stainless steel overlap joining structure by Nd:YAG laser welding. The fatigue life was obtained through fatigue tests with the various levels of applied load. The fatigue life is related with the parameters such as gap condition and penetration depth through experiment. As the results, tensile and fatigue strength were proportional in heat input level and bead width was identified the major factor for joining strength. Also the fatigue life were decreased depend on gap condition, it was more affected at the low load level.

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