High-gravitational effect on process stabilization for metal powder bed fusion
High-gravitational effect on process stabilization for metal powder bed fusion
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DOI：
10.1016/j.addma.2021.102153
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发表时间：
2021-10
影响因子：
11
通讯作者：
Y. Sugiura;Ryo Koike
中科院分区：
文献类型：
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作者：
Y. Sugiura;Ryo Koike
增材制造是一种因其灵活性而能够实现产品大规模定制的技术，是基于物联网的制造系统中使用的关键技术之一。近年来，增材制造的工业应用不断增加，并扩展到航天制造领域。然而，重力加速度的可控性尚未得到很好的探索。在这项研究中，开发了一种高重力粉末床聚变系统，该系统通过离心加速度的应用产生高重力场。很明显，粉末床质量得到了改善，并且在施加高达 10+ G 的高重力加速度时，飞溅的产生得到了显着抑制。实验评估表明，高重力场可以提高制造零件的表面质量、密度和硬度。
Additive manufacturing is a technology that enables mass customization of products owing to its flexibility and is one of the key technologies used in Internet-of-Things-based manufacturing systems. In recent years, industrial applications of additive manufacturing have been increasing, and expanding into space manufacturing. However, the controllability of gravitational acceleration has not been well explored. In this study, a high-gravitational powder bed fusion system is developed, which produces a high-gravitational field via the application of centrifugal acceleration. It is evident that the powder bed quality is improved, and the spatter generation is dramatically suppressed on applying a high gravitational acceleration of up to 10+ G. The experimental evaluations demonstrate that a high gravitational field improves the surface quality, density, and hardness of the fabricated parts.