RP/M is an advance technology based on build-up and discrete idea,and Laser direct deposition by coaxially feeding the powders to laser melting pool is a RM technology in general use.

• 是基于堆积/离散思想的先进制造技术,以同轴送粉为特征的激光直接沉积技术是RM中的典型和普遍使用的技术,其基板的变形是沉积过程中的主要缺陷,也是该技术中存在的关键工艺问题。