Sensitivity analysis of the process parameters of laser cladding NiCrCoAlY

被引:3
|
作者
Cao, Qiang [1 ]
Lian, Guo-fu [1 ]
Chen, Chang-rong [1 ]
Feng, Mei-yan [1 ]
机构
[1] FuJian Univ Technol, Sch Mech & Automot Engn, Fuzhou 350118, Peoples R China
基金
中国国家自然科学基金;
关键词
laser cladding; process parameters; geometric morphology; sensitivity analysis; MICROSTRUCTURE; OPTIMIZATION; PERFORMANCE; POWDER;
D O I
10.1051/metal/2022015
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
This research aims to explore the forming quality of Laser Cladding NiCrCoAlY. The small changes in process parameters on the geometric characteristics of cladding layer was investigated. Mathematical models were established based on the linear regression analysis, and the influence of process parameters on the geometric morphology was obtained through the sensitivity analysis. The results show that the mathematical models have remarkable fitting accuracy. The laser power is positively correlated with clad height, width, and dilution rate; while the scanning speed is negatively correlated with clad height and width but positively with dilution rate. The powder feeding voltage has a positive correlation with clad height and a negative with clad width and dilution rate. In addition, the clad height has the greatest negative sensitivity to scanning speed, while the clad width is most sensitive to laser power and nearly insensitive to powder feeding voltage, which indicates that the clad width cannot be controlled effectively by powder feeding voltage. The dilution rate is most sensitive to laser power. The findings of this research provide a characteristic diagram of sensitivity for the geometric characteristics of laser cladding NiCrCoAlY, and also provide a theoretical basis for the further effective control on the forming quality of cladding layer.
引用
收藏
页数:10
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