摘要
文中介绍了一种适合于复杂构件在敞开环境下进行可靠连接的"超声波振动辅助钎焊技术"原理。描述了焊接铝基复合材料、铝合金、陶瓷/铝、玻璃/铝的初步试验结果。结果表明,在钎焊过程中施加一适当的超声波振动,可以有效地去除母材表面氧化膜,促进母材与钎料的润湿,在低温、大气环境下获得微观组织结构和力学性能俱佳的连接接头,希望该技术能为难焊材料的连接开拓了一条新途径。
The mechanism of ultrasonic vibration assisted brazing of complex structures in air was introduced.The ultrasonic assisted brazing experiments on aluminum metal matrix composites,aluminum alloy,ceramic/aluminum and glass/aluminum were carried out.The results show that the oxide layer is removed completely and the wettability between base materials and filler metal is promoted with the ultrasonic vibration. Finally,the joints with perfect microstructure and excellent mechanical properties could be obtained.It is hoped to develop a new way of joining materials with poor weldability via this technique.
出处
《焊接》
北大核心
2009年第3期6-13,共8页
Welding & Joining
关键词
超声波钎焊
铝基复合材料
铝合金
ultrasonic brazing
aluminum metal matrix composites
aluminum alloy
