During the laser sintering, due to the large liquid phase viscosity and surface tension, the balling effect occurred when the molten did not wet the solid metal particle and the underlying substrate.

• 分析了316不锈钢粉末球化效应产生的原因,讨论了工艺参数(激光功率、扫描速度和粉层厚度)对316不锈钢金属粉末烧结成形的影响。