激光加热连接金刚石/铝基的工艺研究  

Investigation of Laser Brazing of Diamond/Aluminum Matrix

作　　者：王颖达[1] 苏艳芳[1] 张大将 黄国钦[1] 

机构地区：[1]华侨大学制造工程研究院,厦门361021

出　　处：《超硬材料工程》2017年第2期1-6,共6页Superhard Material Engineering

基　　金：国家自然科学基金(51575198;51235004);华侨大学研究生科研创新能力培育计划资助项目(1511303021)

摘　　要：在氩气保护条件下,用Ag-Cu-Ti钎料在4032、6061和7075三种铝合金基体上对金刚石进行激光钎焊,同时比较7075铝合金用三种不同方法去除表面氧化膜后的激光钎焊的实验。文章利用光纤激光器,用超景深显微镜对焊后金刚石形貌进行观察分析。研究表明:在化学法去除氧化膜后的7075铝合金基体上激光钎焊金刚石的效果最好,实现了Ag-Cu-Ti钎料与金刚石、铝合金基体的牢固焊接。Three types of aluminum alloy matrix, 4032, 6061 and 7075, have been laser brazed under argon atmosphere with Ag--Cu--Ti solder and laser brazing experiments of 7075 aluminum alloy, which surface oxidation film has been removed by three different methods, have been conducted and compared. The diamond morphology after being brazed has been observed and analyzed by fiber laser and ultra-deep microscope. Result shows that the laser brazing of diamond onto a 7075 aluminum alloy matrix, which oxida- tion film has been removed by chemical method works best, and the firm welding of Ag-- Cu--Ti solder, dimond and aluminum alloy matrix has been achieved.

关 键 词：激光钎焊 金刚石 铝合金 钎焊工艺 

分 类 号：TG454[金属学及工艺—焊接] TG743