Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Selective Laser Melting of Metal Matrix Composites: A Review of Materials and Process Design

레이저로 적층 제조한 금속 기지재 복합재료의 설계 및 제조 연구동향

  • Kim, Min-Kyeom (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Taehwan (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Ju-won (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Dongwon (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Fang, Yongjian (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • No, Jonghwan (Department of Mechanical Engineering, Sungkyunkwan University) ;
  • Suhr, Jonghwan (Department of Mechanical Engineering, Sungkyunkwan University)
  • Received : 2021.06.21
  • Accepted : 2021.07.09
  • Published : 2021.09.03
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Abstract

Metal matrix composites (MMCs) were widely used in various industries, due to the excellent properties: high strength, stiffness, wear resistance, hardness, thermal conductivity, electrical conductivity, etc. With additive manufacturing (AM) technology rapidly developed, AM MMCs have been actively investigated thanks to the cost- and time-saving manufacturing. However, several issues still need to be addressed before fabricating AM MMCs. Here, several types of MMCs were introduced and MMCs' design methods to tackle the issues were suggested in a powder bed fusion (PBF) technique. The paper could come up with a guideline for the material and process design of MMCs in the PBF technique.

금속 기지재 복합재료들(MMCs, Metal matrix composites)은 우수한 기계적 물성(강성, 강도, 마모 저항성, 경도 등)과 뛰어난 특성(열전도, 전기전도도, 부식 저항 등)으로 다양한 산업군에 활용되고 있다. 적층제조 기술이 발달함에 따라 복잡한 형상을 시간과 비용을 절약하여 제조할 수 있다는 이점으로, 적층 제조한 MMCs에 관한 연구가 활발하게 이루어지고 있다. 하지만 MMCs를 적층 제조할 경우, 다양한 원인들에 의해 여러 문제들이 발생할 수 있다. 따라서 본 연구에서는 다양한 MMCs의 특징들을 소개하고, 위의 문제들이 발생하는 원인을 고찰하여 소재와 Powder bed fusion (PBF) 공정 설계 관점에서 해결책을 제시하고자 한다. 본 논문은 향후 PBF 방식으로 적층 제조한 MMCs를 개발할 때 설계 및 제조 가이드라인을 제시하여 줄 수 있을 것이다.

Keywords

Acknowledgement

본 논문은 국토교통부/국토교통과학기술진흥원의 지원으로 수행(과제번호 21CTAP-C157949-02)된 것이며, 한국수력원자력(주)에서 재원을 부담하여 성균관대에서 수행한 연구 결과입니다(제 2020-기술-08호).

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