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On the Explosive Welding Characteristics of Steel-Titanium Dissimilar Materials Using finite Element Method

유한요소법을 이용한 강-티타늄 이종소재의 폭발 용접조건 해석

  • 김청군 (홍익대학교 트라이블로지 연구센터) ;
  • 김명구 (홍익대학교 트라이블로지 연구센터) ;
  • 심상한 (한국중공업(주)) ;
  • 문정기 (한국기계연구원)
  • Published : 1996.03.01

Abstract

Using the two-dimensional hydrocode HI-DYNA2D, a calculation on the explosive selding of dissimilar plates(Steel Titanium) was made for the pressure, temperature, velocity and impact ingles adjacent to the collision point during the welding process. The FEM result indicates that optimal stand-off distance of initially parallel set-up is 3-5mm for various values of the explosive thickness. The calculation shows that when the explosive thickness is around 30mm, the temperature of welding point which is strongly related to the metallic jet formation is 2, 000-3, 500K for the given stand-off distance.

Keywords

Explosive Welding;Explosive;Collision Point;Metallic Jet;Stand-Off Distance