本发明涉及一种超声辅助撒粉激光选区烧结制备纯钨零件的装置及方法，主要针对现有工艺条件下激光选区烧结获得的纯钨材料密度低、质量差的问题。该方法将计算机模拟得到的优化工艺条件应用到超声波撒粉辅助设备上，提高烧结前粉床的密度，在计算机模拟得到的优化工艺条件下，对不同粒径的钨粉进行选择性激光烧结。从而实现高密度纯钨零件的制备。本发明的方法大大提高了铺粉过程中钨粉的密度和均匀性，使后续烧结得到的纯钨零件更加致密。同时，该方法有效地节约了资源，降低了成本，缩短了实验时间，解决了传统制备纯金属钨的方法存在的工艺流程长、时间长、程序复杂等问题。

The invention relates to a device and method for preparing pure tungsten parts by laser selective sintering of ultrasonic assisted powder spreading, and mainly aims at the problems of low density and poor quality of pure tungsten materials obtained by selective laser sintering under the existing technological conditions. This method applies the optimized process conditions obtained by computer simulation to ultrasonic auxiliary equipment for powder spreading, improves the density of the powder bed before sintering, and performs selective laser sintering of tungsten powder with different particle sizes under the optimized process conditions obtained by computer simulation. So as to realize the preparation of high-density pure tungsten parts. The method of the present invention greatly improves the density and uniformity of tungsten powder during the powder spreading process, and makes the pure tungsten parts obtained by subsequent sintering more dense. At the same time, the method effectively saves resources, reduces costs, shortens the experiment time, and solves the traditional. The method for preparing pure tungsten metal has problems such as long process flow, long time and complex procedures.