IMECH-IR  > 先进制造工艺力学实验室
Alternative TitleThree-Dimensional Numerical Simulation of Transient Temperature Field and Coating Geometry in Powder Feeding Laser Cladding
刘昊; 虞钢; 何秀丽; 李少霞; 郑彩云; 宁伟健; 葛志福
Source Publication中国激光
Other AbstractA three-dimensional numerical model based on the birth-death element method is developed on the basis of characteristics of powder feeding laser cladding. The model, which takes the laser power attenuation by the powder stream and the heating of powder particles in the powder feeding process into account, has the capability of predicting the transient thermal field and coating geometry. Temperature distribution and geometric characteristic of coating during laser cladding process are investigated. The results show that the temperature field and coating geometry keep stable after a short initial stage of the process. Experiments with different powder feeding rates are performed to validate the calculated results. The calculated coating width, height and depth, as well as outline of coating, agree with the experimental ones, so the reliability of the model is proved.
Keyword激光技术 激光熔覆 数值模拟 几何形貌 瞬态温度场
Subject Area制造工艺力学
Indexed ByEI ; CSCD
Funding Organization国家自然科学基金面上项目(11272316,11272317)
Citation statistics
Cited Times:15[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author虞钢
Recommended Citation
GB/T 7714
刘昊,虞钢,何秀丽,等. 送粉式激光熔覆中瞬态温度场与几何形貌的三维数值模拟[J]. 中国激光,2013,40(12):1203007-1-1203007-8.
APA 刘昊.,虞钢.,何秀丽.,李少霞.,郑彩云.,...&葛志福.(2013).送粉式激光熔覆中瞬态温度场与几何形貌的三维数值模拟.中国激光,40(12),1203007-1-1203007-8.
MLA 刘昊,et al."送粉式激光熔覆中瞬态温度场与几何形貌的三维数值模拟".中国激光 40.12(2013):1203007-1-1203007-8.
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