Digital light processing 3D printing of AlSi10Mg powder modified by surface coating
Digital light processing 3D printing of AlSi10Mg powder modified by surface coating
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表面涂层改性AlSi10Mg粉末的数字光处理3D打印
DOI：
10.1016/j.addma.2021.101897
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发表时间：
2021-03
影响因子：
11
通讯作者：
Gong Wang
中科院分区：
文献类型：
--
作者：
Bingshan Liu;Yantong Zhao;Tongcai Wang;Wenyan Duan;Shan Li;Yubei Zhang;Gong Wang
提出了一种通过对AlSi10Mg颗粒进行表面改性和数字光处理（DLP）打印的铝合金粉末增材制造技术。首先，采用悬浮聚合法在AlSi 10 Mg颗粒表面包覆苯乙烯。TEM结果表明，涂层厚度约为200 nm至400 nm。其次，将光固化丙烯酸酯树脂与AlSi 10 Mg粉末混合，制备了印刷浆料。印刷实验表明，AlSi10Mg粉体表面包覆后，印刷浆料的固化深度明显提高。并详细讨论了其原因。然后，对印花浆料的光固化行为和粘度进行了测试和分析。最后，利用数字光加工技术成功制备了AlSi10Mg材料的复杂结构。这表明表面改性是超细合金粉末光固化打印的可行方法，也可以扩展到其他合金系统的增材制造。
This paper proposed a kind of aluminum alloy powder additive manufacturing technology through surface modification of AlSi10Mg particles and digital light processing (DLP) printing. Firstly, AlSi10Mg particles were coated by styrene through suspension polymerization. The TEM results showed that the coating thickness is approximately 200 nm to 400 nm. Secondly, printing slurry was prepared by mixing photocurable acrylate resin with AlSi10Mg powder. The printing experiments showed that the curing depth of the printing slurry was obviously improved after surface coating of AlSi10Mg power. And the reason was discussed in detail. Then, the photocuring behavior and viscosity of the printing slurry were tested and analyzed. Finally, complex structures of AlSi10Mg material were successfully fabricated by digital light processing. It is demonstrated that surface modification is a feasible method for the photocurable printing of ultrafine alloy powder, which can also be expanded to the additive manufacturing of other alloy systems.
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