摘要
涂层裂纹问题作为激光熔覆技术发展道路上的一大桎梏,是当前研究的重点和难点。综述了激光熔覆技术涂层裂纹产生的原因;从材料设计、工艺参数优化、预热缓冷、热处理、外部辅助等方面总结了激光熔覆涂层裂纹的控制方法;并在最后展望了激光熔覆技术涂层裂纹控制的发展趋势。
The coating crack problem is taken as a shackle in the development of laser cladding technology, which is the focus and difficulty in current research. The reasons for the cracks in the coating of laser cladding technology were reviewed.The control methods for the cracks in the laser cladding coating were summarized from the aspects of material design, process parameter optimization, preheating and slow cooling, heat treatment, external auxiliary, etc. Finally, the development trend of the crack control in the coating of laser cladding technology was look forward.
作者
王伟
孙文磊
于江通
黄海博
WANG Wei;SUN Wenlei;YU Jiangtong;HUANG Haibo(School of Mechanical Engineering,Xinjiang University,Urumqi 830047,China)
出处
《热加工工艺》
北大核心
2020年第20期1-5,共5页
Hot Working Technology
基金
新疆克拉玛依重大专项项目(2018ZD002B)
新疆高技术研究发展项目(201513102)。
关键词
激光熔覆
裂纹控制
材料设计
工艺优化
外部辅助
laser cladding
crack control
material design
process optimization
external auxiliary
