• Title/Summary/Keyword: 맞춤식 재단 용접강판

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Mechanical characteristics and bead geometry according to laser welding parameters for tailor-welded-branks of hot press forming steel (레이저용접을 이용한 핫프레스포밍강의 맞춤식 재단 용접강판에서 용접공정변수에 따른 기계적 특성 및 비드형상)

  • Kang, Minjung;Kim, Cheolhee;Seo, Jong Dock;Lim, Chang Young
    • Laser Solutions
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    • v.18 no.2
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    • pp.5-10
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    • 2015
  • A tailor welded blank (TWB) is a welded blank comprised of two or more sheets with different properties - thickness, strengths or formabilities. TWBs are applied to the body panels to reduce weight and cost of the part. In this research, ultra high strength steel and high ductility steel were joined and laser tailor welded blanks were implemented. Yb:YAG laser welding tests were conducted with various welding conditions, and mechanical and geometrical characteristics of weldments were evaluated.