轴类零件表面激光熔覆再制造技术的研究进展  

Advances in surface laser cladding remanufacturing technology for shaft parts

作　　者：赵昌龙[1] 杨俊宝 李明 赵钦祥 马洪楠 贾晓宇 张海峰[1] ZHAO Changlong;YANG Junbao;LI Ming;ZHAO Qinxiang;MA Hongnan;JIA Xiaoyu;ZHANG Haifeng(College of Mechanical and Veshicle Engineering,Changchun University,Changchun 130022,CHN)

机构地区：[1]长春大学机械与车辆工程学院,吉林长春130022

出　　处：《制造技术与机床》2023年第7期32-37,共6页Manufacturing Technology & Machine Tool

基　　金：吉林省科技厅科技计划项目(20200201220JC);吉林省教育厅科技计划项目(JJKH20220589CY)。

摘　　要：在交通、采矿和石油化工等高端制造领域,轴类零件由于常在高温高压的环境下工作,往往会因磨损、腐蚀和疲劳进而断裂失效。现今,激光熔覆因其稀释率低、热影响区小、涂层与基材之间具有良好的冶金结合等优点,被广泛应用于轴类零件的表面修复和强化。介绍了激光熔覆常用的工艺方法,包括预置送粉、同步送粉、送丝熔覆,使研究人员对轴类零件表面激光熔覆进行了解。同时,综述了多种工艺参数加工下轴类零件的熔覆层性能,如激光功率、扫描速度、搭接率、送粉率等综合参数的影响。探讨了超高速激光熔覆在轴类零部件方面的研究情况。最后,对现阶段轴类零件表面激光熔覆研究中存在的问题进行了归纳,并对其发展方向进行了展望。In high-end manufacturing areas such as transportation,mining,and petrochemicals,shaft components often failed due to wear,corrosion,and fatigue under the high temperatures and pressures.Nowadays,laser cladding is widely used for shaft components surface repair and strengthen because of its low dilution rate,small heat-affected zone,and good metallurgical bonding between the coating and the substrate.This paper provides an overview of the commonly used process methods for laser cladding,including pre-set powder feeding,simultaneous powder feeding and wire feeding cladding,and provides researchers with an initial understanding of this direction through an introduction to the above processes.At the same time,the performance of the cladding layer of shaft parts processed under different process parameters,such as the influence of comprehensive parameters such as laser power,scanning speed,lap rate and powder feed rate,is reviewed,as well as the application of numerical simulation techniques to the simulation of stress fields when laser cladding processing is carried out on the surface of shaft parts.The research on ultra-high speed laser cladding of shaft components is discussed.Finally,the problems in the current research on laser cladding of shaft components are summarized and the development directions are outlined.

关 键 词：轴类零件 激光熔覆 工艺参数 数值模拟 超高速激光熔覆 

分 类 号：TG156.99[金属学及工艺—热处理]