空间金属增材制造技术应用

高能束流金属增材制造技术以激光和电子束作为热源，通过选区熔化粉末或熔丝沉积成型来实现金属零部件的制造.根据金属增材制造技术在空间领域的发展，结合空间站和深空探测强约束条件对在轨制造设备尺寸、重量、功耗、寿命提出的更高要求，对比激光与电子束两种热源的工作模式，进行在轨可行性分析，提出未来空间金属增材制造技术发展所面临的问题与解决途径. 

Application of Metal Additive Manufacturing Technology for Space

In the high energy beam metal additive manufacturing technology, the laser and electron beam are used as the heating source to realize the manufacture of metal parts by powder melting or fuse deposition modeling. Based on the development of the metal additive manufacturing technology in the field of space, combining with the higher requirements of the on-orbit equipment size, weight, power consumption and life span induced by the strong constraints of space station and deep space exploration, the two working modes of the laser and electron beam heating sources are compared,and the on-orbit feasibility is analyzed. Moreover, the problems as well as the solutions to the development of future space metal additive manufacturing technology are presented.