MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Evaluation of Powder Layer Density for the Selective Laser Melting (SLM) Process
Joon-Phil ChoiGi-Hun ShinHak-Sung LeeDong-Yeol YangSangsun YangChang-Woo LeeMathieu BrochuJi-Hun Yu
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2017 Volume 58 Issue 2 Pages 294-297

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Abstract

In selective laser melting (SLM), powder properties like size, distribution, shape, flow, and packing have effects on the process and the final parts quality, and several standards and methods are available for representing these characteristics. However, these are not enough to explain the actual packing state of the particles across the powder bed substrate. This work reports a novel method for evaluation of the powder layer density in the SLM process. The results show that the powder characteristics measured by conventional methods are not always appropriate for determining whether a powder material is suitable for SLM.

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© 2016 The Japan Institute of Metals and Materials
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