爆炸焊接参数对钛钢复合板界面波的影响  

Influence of parameters of explosive welding on interfacial waves of Ti/steel composite plate

作　　者：王小绪[1] 何勇[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《南京理工大学学报》2013年第2期215-218,共4页Journal of Nanjing University of Science and Technology

基　　金：中国博士后基金(2011M500929);部委技术基础科研项目(C1820130005);江苏省博士后基金(1101003B)

摘　　要：为了研究爆炸焊接参数对界面波的影响,该文采用小倾角法对钛/钢进行爆炸焊接,得到了不同碰撞速度和碰撞角下连续变化的界面波。通过金相显微观察测量了不同位置界面波的波长和波高。采用光滑粒子动力学无网格方法对小倾角法爆炸焊接过程进行了数值模拟,计算出不同位置的碰撞速度、碰撞角、比压强。研究表明,碰撞速度和碰撞角是影响界面波形的关键参数,当碰撞速度为648 m/s,碰撞角为16.1°时,界面波开始生成。随着碰撞速度和碰撞角的增加,界面波波长和波高逐渐增加,比波长先减小后增加。In order to study the influence of explosive welding parameters on the interfacial waves,the explosive welding experiment with small inclination is performed,and interfacial waves are obtained under different impact velocities and impact angles.The wave length and wave height are measured by the morphology of interfacial waves.The explosive welding with small inclination is numerically simulated using smoothed partiole hydrodynamics method,and the parameters of the impact velocity,the impact angle and the specific pressure are calculated.The results show that the impact velocity and impact angle are the key parameter affecting interfacial waves.When the impact velocity is 648 m/s and the impact angle is 16.1°,the interfacial waves begin to form.The wave length and wave height increase with the impact velocity and the impact angle increasing,and the specific wavelength first decreases and then increases.

关 键 词：爆炸焊接 界面波 碰撞速度 碰撞角 光滑粒子动力学法 

分 类 号：O389[理学—流体力学]