【摘要】 3D打印技术具有不需模具和制造成本对设计的复杂性不敏感的特点,适合制造结构-功能一体化、仿生学设计、轻量化点阵结构、薄壁等复杂结构产品。但因其内部和表面存在一些不可避免的缺陷,需结合适当的后处理来改善金属零件的显微组织和缺陷。分别从显微组织、内部缺陷和表面缺陷3个方面归纳了国内外学者对3D打印零件进行不同后处理的研究进展,分析了未来3D打印后处理研究的主流方向,为3D打印技术生产更合格的零件提供参考。更多还原

【Abstract】 3 D printing technology has the characteristics of not requiring mold and manufacturing cost to be insensitive to the complexity of design, and is suitable for manufacturing complex structure products such as structure-function integration, bionics design, lightweight dot matrix structure, thin wall and the like. However, due to some unavoidable defects in the interior and surface, it is necessary to combine appropriate post-treatment to improve the microstructure and defects of the metal parts. In this paper, the research progress of different post-processing of 3 D printing parts from domestic and foreign scholars were summarized from three aspects of microstructure, internal defects and surface defects, and the mainstream direction of future 3 D printing post-processing research was analyzed, providing a reference for 3 D printing technology to produce more qualified parts.更多还原