金属激光熔覆中铝合金粉末流动行为研究现状
Research Status of Flow Behavior of Aluminum Alloy Powder in Metal Laser Cladding
王凌霄 1赵俊鹏 1樊中免 1刘长军1
作者信息
- 1. 沈阳工业大学化工装备学院,辽宁辽阳 111000
- 折叠
摘要
金属粉末的流动行为决定成型零件的质量与性能,而金属粉末的流动行为受到粉末特性、工艺参数、喷嘴结构等诸多因素的影响.为探究铝合金粉末流动性对激光熔覆成型零件的质量与性能的影响,介绍金属粉末流动行为的相关研究进展,分别对粉末性质、喷嘴结构、工艺参数、激光-粉末耦合作用、熔覆层结构等影响因素进行研究;再与铝合金粉末的材料特性进行对比,总结归纳铝合金粉末流动行为优化研究进展,提出改善铝合金粉末流动性的规律和方法;最后对铝合金粉末在金属激光熔覆领域应用的现有问题及未来的研究方向进行总结和展望.研究结果对于提高铝合金粉末流动性能、推动金属粉末在激光熔覆领域的应用具有重要意义.
Abstract
The flow behavior of metal powder determines the quality and performance of molded parts,which is influenced by many factors such as powder properties,process parameters and nozzle structure.In order to improve the quality and perform-ance of aluminum alloy powder laser clad molded parts,this paper introduces the research progress on the flow behavior of met-al powder,and study the influencing factors such as powder properties,nozzle structure,process parameters,laser-powder coupling,coating layer structure,etc.;then compare with the material properties of aluminum alloy powder,summarize the research progress on the optimization of aluminum alloy powder flow behavior,and propose the laws and methods to improve the flow behavior of aluminum alloy powder.Finally,the existing problems and future research directions of aluminum alloy powder in the field of metal laser cladding are summarized and prospected.The research results are of great significance for im-proving the flow properties of aluminum alloy powder and promoting the application of metal powder in the field of laser clad-ding.
关键词
激光熔覆/铝合金粉末/粉末流动/焊接工艺/粉末性质Key words
laser cladding/aluminum alloy powder/powder flow/welding process/powder characteristics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据