基于Nd:YAG的激光熔覆工艺参数的优化  

Optimization of Process Parameters for Laser Cladding Based on Nd:YAG

作　　者：朱刚贤[1] 张安峰[1] 李涤尘[1] 

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,陕西西安710049

出　　处：《应用激光》2009年第5期388-392,共5页Applied Laser

基　　金：国家重点基础研究发展计划资助项目(项目编号:2007CB707704);国家自然科学基金资助项目(项目编号:50675171);长江学者和创新团队发展计划资助项目(项目编号:PCSIRT0646)

摘　　要：为了获得平整的熔覆层表面质量,采用正交试验方法对316L不锈钢激光熔覆工艺参数对熔覆层截面表面平整度的影响进行了实验研究,并获得了优化的工艺参数。研究结果表明:扫描速度及送粉量对表面平整度影响较大,其次是激光功率及载气流量;并对优化后的工艺参数进行了试验验证,得到了表面平整度为0.015mm的熔覆层表面,从而说明结果的可靠性。To obtain the smooth surface quality of the cladding layer, the effect of process parameters on surface smoothness were studied by using orthogonal test in laser cladding, and some 316L stainless steel samples were built with different process parameters. The optimized process parameters are obtained. The results show that traverse speed and powder mass flow rate have greatly effect on the surface smoothness, and next came laser and carrier gas flow rate. The optimized process parameters are verified by experiment, the surface smoothness can be get to 0. 015mm. It indicates that the results are reliable.

关 键 词：激光熔覆 成形质量 工艺参数 正交试验 表面平整度 

分 类 号：TN249[电子电信—物理电子学] TG39[金属学及工艺—金属压力加工]