铜-康铜微细热电偶丝的光纤激光微细焊接技术  

Fiber Laser Micro-Welding of Cu-CuNi Fine Thermocouple

作　　者：阳建华[1] 张帅[1] 陈继民[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100022

出　　处：《电加工与模具》2005年第4期29-31,共3页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50335050);北京市教委资助项目(KM200510005013)

摘　　要：以铜-康铜微细热电偶测量端的激光焊接过程为例,介绍了微细热电偶的激光制造方法,利用光纤激光光束质量好、功率密度高的特点,对铜-康铜微细热电偶丝进行了光纤激光微细焊接实验。通过测量证明利用激光焊接制造的热电偶性能可靠,并指出利用光纤激光微加工技术可制造出各种不同种类、不同尺寸的微细热电偶,且加工便捷、高效,该技术具有广泛的应用前景。In this paper, the fabrication of Cu-CuNi fine thermocouple （φ200μm） using fiber laser micro welding was introduced. As the material of Cu reflects laser greatly it is hard to weld with normal laser machine. The fiber laser has very good beam quality and high power density therefore it can be used to weld high reflective material, The result of the demarcation experiment proved the reliability of the Cu-CuNi fine thermocouple fabricated by the new method. By the virtue of high power density, the laser micro-welding method fits for many different kinds of fine thermocouples fabrication.

关 键 词：微细热电偶 微细焊接 光纤激光 热电偶丝 焊接技术 铜-康铜 微细 微加工技术 激光光束质量 制造方法 

分 类 号：TG409[金属学及工艺—焊接] TN248[电子电信—物理电子学]