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结合超声波金属焊接方法的特性和钛合金的焊接性分析,得出超声波金属焊接方法极其适用于钛合金薄片的焊接;通过扫描电镜观察和撕裂试验,对Ti6Al4V钛合金在不同焊接工艺参数下的焊接接头的横断面形貌及其力学性能进行了分析。结果表明:随着焊接时间的增长(即焊接能量的增大)接头横断面的削减程度增大,焊接时间是焊件质量的决定性因素;在1144.53N的静压力下Ti6Al4V钛合金的最佳焊接时间为125ms,其界面结合强度最高。
According to the characteristics of the ultrasonic welding method and the weldability analysis of the titanium alloy, it is concluded that the ultrasonic welding method is very suitable for the welding of the titanium alloy sheet. The scanning electron microscopy and the tearing test show that the welding of Ti6Al4V titanium alloy under different welding parameters The cross-sectional morphology and mechanical properties of welded joints were analyzed. The results show that with the increase of welding time (ie, the increase of welding energy), the reduction degree of the cross section of the joint increases. The welding time is the decisive factor of the quality of the weldment. The optimal welding of Ti6Al4V titanium alloy under the static pressure of 1144.53N Time is 125ms, the interface with the highest intensity.