爆炸焊接界面成波机理初探

Study of Mechanism of Wave Formation at the Interface in Explosive Welding

文章通过研究炸药爆轰特性和爆轰荷载 ,对爆炸焊接界面波的形成得到了一些新的结果 ,并由此提出了“波状荷载压嵌的新机理”。爆炸焊接用炸药爆轰波反应区的宽度一般在 0 .1mm～ 1.0 mm之间 ,与界面波波长的数量级一致。炸药反应区的宽度和界面波的长度都随炸药厚度、爆速的增加而增大。爆轰反应区实际总的压力也呈波状分布。界面波的波幅取决于荷载的大小和基复板材料的比强度 。

By studying of the characteristic of the detonation and explosive loading,a few results are gained about the wave formation,and “a new mechanism of press and inlaid due to wavy loading” is put forward. The width of the detonation reaction zone is general 0.1mm～1.0mm,and it is about equal to the wavelength of interface wave in explosive.Both of them increase with the increase of the thickness and detonation velocity of the explosive. The pressure of the detonation reaction zone is also wavy.The amplitude of the interface is decided by the detonation loading and the rate of the strength of the base and drive plate materials,and the wavelength is equal to the width of detonation reaction zone.[