镀钛氧化铝陶瓷与PET激光透射连接的工艺研究  

Study of Laser Transmission Joining Characteristics for Ti Coated Alumina Ceramic and PET

作　　者：高阳阳[1] 刘会霞[1] 李品[1] 姜敏凤[2] 薛国春[1] 蒋涛[1] 严长[1] 王霄[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]无锡职业技术学院机械技术学院,江苏无锡214121

出　　处：《中国激光》2013年第3期56-62,共7页Chinese Journal of Lasers

基　　金：国家自然科学基金(51275219);江苏省光子制造科学与技术重点实验室开放基金(GZ201105)资助课题

摘　　要：生物氧化铝陶瓷与聚合物材料的力学性能、化学性能和热学性能差异很大,因而要实现生物陶瓷与聚合物的高强度连接是非常困难的。在生物氧化铝陶瓷上进行镀钛处理,利用半导体激光器对镀钛氧化铝陶瓷与聚对苯二甲酸乙二醇酯(PET)进行激光透射连接试验,解决了生物陶瓷与聚合物的连接问题。针对激光功率及扫描速度对激光透射连接的接头强度与焊缝宽度的影响进行了研究。通过拉伸试验得到镀钛氧化铝陶瓷与PET之间的连接强度,并使用体视显微镜观测连接接头形貌及焊缝宽度。采用单因素工艺分析法,得到了激光透射连接的工艺参数窗口,为激光透射连接过程提供合理的工艺参数范围。There are significant differences between biological alumina ceramic and polymer in mechanical properties, chemical properties and thermal properties, so the performance differences set a challenge to achieve the high strength joint between them. A thin titanium film is deposited on the biological alumina ceramic, laser transimission joining experiments between Ti coated bio-ceramic and polyethylene terephthalate （PET） are conducted by using a near infrared continuous wave （CW） diode laser, which solves the connection problems of bio-ceramics and polymers. The joined samples are tested by lap-shear test to determine the joint strength, and examined by optical microscopy to obtain the joint morphology and joint width. The effects of the laser power and the scanning speed on joint strength and joint width in laser transmission joining process are also investigated. The parameters window for laser transmission joining process is obtained via the single factor process analysis, and a reasonable range of processing parameters is provided for laser transmission joining.

关 键 词：激光技术 激光透射连接 氧化铝陶瓷 聚对苯二甲酸乙二醇酯 工艺参数 

分 类 号：TG456.7[金属学及工艺—焊接]