激光直接烧结成形金属零件的试验研究  

Study on Laser Engineered Net shaping of Metal Components

作　　者：薛春芳[1] 田欣利[1] 董世运[1] 谭永生[2] 

机构地区：[1]装甲兵工程学院,北京100072 [2]高能束流加工技术重点实验室,北京100024

出　　处：《应用激光》2003年第3期130-134,156,共6页Applied Laser

基　　金：武器装备预研基金项目 (5 1 4 6 1 0 1 0 1 0 1JB35 0 1 )

摘　　要：激光直接烧结成形技术是在激光熔覆技术和快速原型及制造技术的基础上发展起来的一项先进的制造技术 ,其发展趋势是直接制造金属零件。本文采用Ni基和Co基合金粉末进行了激光烧结实验 ,利用激光烧结直接成形工艺进行了单道烧结试验 ,研究了不同工艺参数对成形性和表面质量的影响规律 ,同时使用SEM分析了单道涂覆层的组织特征 。Laser Engineered Net shaping (LENS) was a new and advanced manufacture technology, which has been developed on the base of high-power laser cladding technology with rapid prototyping, the general direction in which tends to fabricate metal components. In this paper, Ni-based alloy powder and Co- based alloy powder are selected for laser sintering single-layer test. Effect of different process parameters on buildup characteristic and surface quality has been studied. Also, SEM was used to analysis the microstructure of single-layer under different parameters. Finally, ideal laser sintering parameters are obtained.

关 键 词：激光直接烧结成形 金属零件 激光烧结 镍基合金 钴基合金 激光熔覆技术 

分 类 号：TF124.5[冶金工程—粉末冶金] TG665[冶金工程—冶金物理化学]