No.11（2016）12.Construction of condition database for model shapes used in metal additive manufacturing

Kengo Fujimaki，Yokoyama Yukio，Koganei Seiji，Chiba Hiroyuki，Okubo Satoshi

  Metal AM (Additive Manufacturing) using metal powder as a raw material can produce prototype parts of a higher strength compared to conventional AM using plastic materials. A drop in the quality of a part shape manufactured by metal AM is caused by three major factors - collapse of overhanging shapes, warping of thin shapes, and impact of the support piece for securing the manufacturing part to the build plate. Metal AM is a relatively new technology and know-how for practical use is still lacking. In this paper, we built a database for the manufacturing quality of model shapes produced using metal AM. In the experiments, we used a powder bed fusion metal AM system that uses the stainless steel metal powder 17-4PH (equivalent to JIS SUS630). The research results of this paper serve to advance the quality and reliability of manufacturing services using metal AM.

Keywords
Additive manufacturing, Metal 3D printer, Powder bed fusion, Stainless steel, Manufacturing quality

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