Effect of scanning path on temperature field in laser cladding

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Gong, Xinyong^1 ; Luo, Jianguo^1 ; Hu, Dezhi^1

School of Mechanical and Electrical Engineering, North China Institute of Science and Technology, HEBEI

065201, China^1

关键词: Helical scanning;    Laser scanning;    Local areas;    Long-path;    Scanning path;    Short-path;    Temperature fluctuation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012039/pdf
DOI  :  10.1088/1757-899X/207/1/012039

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Temperature field of planar laser cladding with length direction, width direction and helical scanning path were simulated and analysed. Temperature distribution could be effected significantly by the laser scanning path. For short-path scanning, heat was concentrated in the local area, resulting in larger (/smaller) temperature gradient in the length (/width) direction of the substrate. However, such characteristics of long-path scanning were on the contrary. By comparison, the heat affected zone (HAZ) of the substrate with helical scanning mode was the smallest and its temperature fluctuations were more dispersed.