• 제목/요약/키워드: 용접박판

검색결과 212건 처리시간 0.025초

저항용접공정에서의 In-Line 품질평가를 위한 Q-MEXS의 개발 (A Development of Q-MEXS for In-tine Quality Monitoring in Resistance Welding)

  • 조성우;조상명
    • 대한용접접합학회:학술대회논문집
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    • 대한용접접합학회 2004년도 춘계 학술발표대회 개요집
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    • pp.24-26
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    • 2004

  • 현재 박판조립라인에서 널리 사용되는 저항용접은 용접기술과 자동화 기술의 발달로 자동차, 가전제품 등의 분야에서 중요한 위치를 차지하고있다. 그러나 용접 품질의 좋고 나쁨은 육안으로 식별하기 어렵기 때문에 점용접의 품질 확보에 어려움을 겪고 있다. (중략)

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용접부를 고려한 레이저 합체박판 성형공정의 3차원 유한요소 해석 (3-D FEM Analysis of Forming Process for Laser Welded Blank Considering Welded Zone)

  • 금영탁
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1999년도 추계학술대회논문집
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    • pp.14-17
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    • 1999

  • The finite element formulation is developed for predicting strain distributions and weld line movements in the forming processes of laser welded blank. The welded zone(WZ) is modelled with several narrow finite elements whose material characteristics are analytically obtained from those of base metals based on the tensile tests. In order to show the reliability and effectiveness of weld element the forming process of hemispherical dome stretching and auto-body door inner panel stamping are simulated FEM predictions show good agreements with experimental observations.

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박판의 $CO_2$레이저 빔 용접과 소재접합일체성형에 관한 연구- 동질 박판재간 - (A Study on the $CO_2$ Laser Beam Welding of Thin Steel Sheets and Tailored Blanks - Between Similar Thin Sheet Materials -)

  • 이희석;배동호
    • Journal of Welding and Joining
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    • 제15권2호
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    • pp.54-63
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    • 1997

  • For the purpose of establishing laser welding condition (laser power, welding speed and beam focus) and of evaluating tailored blanks for two kinds of thin steel sheets SPCC and SK5M using in the thin plate structure such as automobile, train, and so on, investigated their $CO^2$ laser weldability under various initial welding conditions. SPCC thin sheet showed good weldability under some welding conditions. But, high carbon steel sheet SK5M needed heat treatment after welding to obtain ductility of the welded joint. And next, tailored blank was tested through deep drawing to evaluate reliability of their obtained laser welding conditions. The forming depths by tailored blank were SPCC+SPCC=22-25mm and SK5M+SK5M=13-25mm.

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