为探究膨化硝铵炸药作用下,厚度均为2 mm的钛(Ti)、钢板的最优爆炸焊接参数以及验证一种新的爆炸焊接试验方案,实验采取阶梯型多层基板的爆炸焊接试验方案,以控制药量和间距为变量,并将Ti板作为复板,同时对多层阶梯型钢基板进行爆炸焊接试验;利用金相显微镜对焊接复合板进行观察,并分析多层基板同时焊接的方案可行性以及不同实验参数对界面波形的影响.试验结果和分析表明:通过观察Ti/钢复合板界面波形呈正弦微波状且无明显过渡层,验证了新方案的可行性,同时突出了阶梯型多层基板的同时爆炸焊接方案,能够在单次试验下对比分析不同基复板间距情况下的焊接效果的能力;并经分析得出在单位面积装药为1.048 g/cm2及装药间距范围为(9~11)mm时,能得到质量较佳的Ti/钢爆炸复合板.%In order to explore the optimum explosive welding parameters of titanium and steel plates which the thickness is 2 mm,and verify a new explosive welding test scheme,under the effect of expanded ammonium nitrate explosive.The experiment of explosive welding of stepped multilayer immobile plates was carried out in actual test. The charge and spacing are taken as variables.Titanium plate was used as fly plate and titanium and multilayer steel plates were welded at the same time.The welding composite plates were observed by metallographic microscope.And the practicability of simultaneous welding multilayer immobile plates and the effects of different experimental parame-ters on interface waveform were analyzed.Experimental results and analysis show that the interfaces waveform of Ti/steel clad plates is sine-like and small.There is no obvious transition layer between the bonding interfaces and vali-date the practicability of the new experimental scheme.Highlighted this new experimental scheme's ability to com-pare and analyze different welding results of different spacing under single test.Compared different tested results,the best spacing parameter is valued between(9~11)mm with the explosive charge is 1.048 g/cm2.Under this condi-tion,good quality of explosive welding Ti/steel clad plates is the best.
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