金属粉末激光熔覆成形温度场的数值分析  

Numerical Analysis of Temperature Field in Laser Cladding Shaping of Metal Powder

作　　者：薛春芳[1] 戴耀[1] 王丹杰[1] 王永峰[1] 陈强[2] 

机构地区：[1]装甲兵工程学院机械工程系,北京100072 [2]二炮装备研究院四所,北京100085

出　　处：《装甲兵工程学院学报》2006年第3期93-96,共4页Journal of Academy of Armored Force Engineering

摘　　要：通过建立移动激光热源作用下熔覆温度场的数值分析模型，用数值模拟的方法对激光烧结金属粉末温度场进行了分析，得到不同工艺参数下熔覆过程中基体的温度等值线分布图，并分析了扫描速度和送粉率对温度场的影响，为合理选择激光熔覆成形工艺参数提供了理论依据。Computational model was established for analysis of laser cladding temperature field caused by moving heat source. The distribution of temperature grads of base material had been attained by numerical simulation. The laser cladding process had been calculated and analyzed by the model under different processing parameters including scanning speed and powder feeding velocity. The results provide theoretical basis for selecting laser cladding processing parameters practically.

关 键 词：激光熔覆 温度场 工艺参数 

分 类 号：TG156.99[金属学及工艺—热处理]