Abstract This paper introduces a new additive manufacturing (AM) process which significantly improves the productivity of the current metal AM technologies by combining binder jet printing and stereolithography principles. Three dimensional objects can be printed on a powder bed system where photopolymerization takes place by selectively curing the suspensions containing metallic powder and ultraviolet curable resin in a layer-by-layer fashion. Integration of a digital light projection module allows a high-speed production with dimensional accuracy within 100 µm. Printed parts are sintered at appropriate temperatures to attain metal parts with the final density above 97% and homogenous microstructure without residual stress.

中文翻译：

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开发创新、高速、大规模且价格合理的金属增材制造工艺

摘要 本文介绍了一种新的增材制造 (AM) 工艺，通过结合粘合剂喷射印刷和立体光刻原理，显着提高了当前金属增材制造技术的生产率。三维物体可以打印在粉末床系统上，通过选择性固化含有金属粉末和紫外线固化树脂的悬浮液以逐层方式进行光聚合。数字光投影模块的集成可实现尺寸精度在 100 µm 以内的高速生产。印刷零件在适当的温度下烧结，以获得最终密度在 97% 以上和均匀的微观结构，没有残余应力的金属零件。