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Abstract

Recently, 3D printing processes have been used to manufacture metal powder filters with manufacturing complex-shape. In this study, metal powder filters of various shapes were manufactured using the metal extrusion additive manufacturing (MEAM) process, which is used to manufacture three-dimensional structures by extruding a filament consisting of a metal powder and a binder. Firstly, filaments were prepared by appropriately mixing SUS316 powder with sizes ranging from 7.5 µm to 50 µm and a binder. These filaments were extruded at temperatures of 100℃ to 160℃ depending on the type of filament being manufactured, to form three types of cylindrical filter. Specimens were sintered in a high vacuum atmosphere furnace at 850℃ to 1050℃ for 1 hour after debinding. The specimens were analyzed for permeability using a capillary flow porometer, porosity was determined by applying Archimedes’ law and microstructure was observed using SEM.
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Authors and Affiliations

Yu-Jeong Yi
1 2
ORCID: ORCID
Min-Jeong Lee
1 2
ORCID: ORCID
Su-Jin Yun
1
ORCID: ORCID
Manho Park
3
ORCID: ORCID
Ju-Yong Kim
4
ORCID: ORCID
Jungwoo Lee
2
ORCID: ORCID
Jung-Yeul Yun
1
ORCID: ORCID

  1. Korea Institute of Materials Science (KIMS), Metal Powder Department, Changwon, 51508, Republic of Korea
  2. Pusan National University, Department of Materials Science and Engineering, Busan, 46241, Republic of Korea
  3. R&D Center, ASFLOW CO. Ltd, Hwasung, 16648, Republic of Korea
  4. 3DP R&D Center, REPROTECH, Suwon, 16229, Republic of Korea

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