激光熔覆成形过程的检测与控制研究进展  

Research Progresses on Detection and Control of Laser Cladding Forming Process

作　　者：乔亚丽[1] 宋建丽[1] 石晓蕾 李海洋 祝连庆[1] QIAO Yali;SONG Jianli;SHI Xiaolei;LI Haiyang;ZHU Lianqing(School of Instrumentation Science and Opto-electronics Engineering,Beijing Information Science and Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《热加工工艺》2020年第12期14-20,共7页Hot Working Technology

基　　金：国家自然科学基金项目(51775050);山东省特种焊接技术重点实验室开放课题基金项目(20170482)。

摘　　要：激光熔覆成形(laser cladding forming,LCF)是近年来发展起来的一种先进制造技术,可用于金属零件的表面改性、成形及再制造。激光熔覆成形过程伴随着复杂的物理和冶金现象,且激光加热和冷却过程极快,成形组织与性能受诸多因素影响,其中熔池的温度场和几何形状及熔覆层形貌对零件质量的作用至关重要,通过对这些信息的检测和控制,可以对熔覆层质量和缺陷进行预测和调控,从而保证成形性能。因此,激光熔覆成形过程的检测和控制已成为激光材料加工和成形领域的研究热点。对激光熔覆成形过程相关熔池和熔覆层参数的测量和控制方法、检测系统及应用进行了回顾和分析,并提出了未来的发展方向和趋势。Laser cladding forming(LCF)is an advanced manufacturing technology developed in recent years,which can be used for surface modification,forming and remanufacturing of metal parts.The laser cladding forming process is accompanied by complex physical and metallurgical phenomena.The laser heating and cooling process is very fast,and the forming structure and properties are affected by many factors.The temperature field and geometric shape of the weld pool and the morphology of the cladding layer are very important to the quality of the parts.Through the detection and control of these information,the quality and defects of the coating can be predicted and controlled,so as to ensure the formability.Therefore,the detection and control of laser cladding process has become a hot spot in the field of laser material processing and forming.The measurement and control methods,detection system and application of related molten pool and coating parameters in laser coating forming process were reviewed and analyzed,and the development direction and trend in the future were put forward.

关 键 词：激光熔覆成形(LCF) 检测与控制 熔池 熔覆层 

分 类 号：TG174.4[金属学及工艺—金属表面处理]