Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructure and Mechanical Properties of Laser Powder Bed Fusion 3D-Printed Cu-10Sn Alloy

레이저 파우더 베드 퓨전 3차원 적층된 Cu-10Sn 합금의 미세조직 및 기계적 특성

  • Jonggyu Kim (Daegun Tech) ;
  • Junghoon Won (School of Materials Science and Engineering, Pusan National University) ;
  • Wookjin Lee (School of Materials Science and Engineering, Pusan National University)
  • 김종규 ((주)대건테크) ;
  • 원정훈 (부산대학교 재료공학부) ;
  • 이욱진 (부산대학교 재료공학부)
  • Received : 2024.08.02
  • Accepted : 2024.10.16
  • Published : 2024.10.28
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Abstract

This study investigated the optimal process conditions and mechanical properties of Cu-10Sn alloys produced by the powder bed fusion (PBF) method. The optimal PBF conditions were explored by producing samples with various laser scanning speeds and laser power. It was found that under optimized conditions, samples with a density close to the theoretical density could be fabricated using PBF without any serious defects. The microstructure and mechanical properties of samples produced under optimized conditions were investigated and compared with a commercial alloy produced by the conventional method. The hardness, maximum tensile strength, and elongation of the samples were significantly higher than those of the commercially available cast alloy with the same chemical composition. Based on these results, it is expected to be possible to use the PBF technique to manufacture Cu-10Sn products with complex 3D shapes that could not be made using the conventional manufacturing method.

Keywords

Acknowledgement

이 논문은 2022년도 정부(교육과학기술부)의 재원으로 한국연구재단의 지원을 받아 연구되었음(NRF-2022R1A2C1012478).

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