粉末床熔融金属粉末回收再利用研究进展

Research progress on metal powder reuse of powder bed fusion

粉末床熔融技术具有可快速成形复杂结构零件及成形的零件尺寸精度高、表面质量好等优点而在诸多领域受到广泛关注,但相比传统方法,该方法仍具有较高的成本。粉末回收再利用是解决该问题的重要途径之一,但回收粉末能否再利用受到诸多因素的影响。鉴于此,本文首先分析了影响回收粉再利用的因素,然后基于文献资料,分析了不同回收策略对粉末及其打印成形件的影响,最后,提出了未来的研究方向和建议。

Powder bed fusing technology has been widely used in many fields due to its rapid ability to form complex structures as well as the high dimensional accuracy and good surface quality of the formed parts. However,compared with traditional manufacturing methods, this method is not cost efficiency. Powder reuse is one of the important ways to solve this problem, but whether the recycled powder can be used is affected by many factors. In view of this, the present paper first analyzes the factors that affect the powder reuse, and then based on the literature review, affects of different reuse strategy on the powder and the corresponding parts is analyzed, Finally, the future research recommendations are put forward.