Fabrication of Copper Alloys as Conductive Materials via Laser Beam Powder Bed Fusion

• OZASA Ryosuke

  Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University

• GUPTA Mridul

  Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University

• ISHIMOTO Takuya

  Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University

• MATSUGAKI Aira

  Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University

• KUSE Tetsuji

  Sanyo Special Steel Co., Ltd.

• YANAGITANI Akihiko

  Sanyo Special Steel Co., Ltd.

• UEDA Masato

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

• IKEO Naoko

  Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

• NAKANO Takayoshi

  Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University

Bibliographic Information

Other Title

• レーザ粉末床溶融結合法による導電性材料としての銅合金の造形
• レーザ フンマツショウ ヨウユウ ケツゴウホウ ニ ヨル ドウデンセイ ザイリョウ ト シテ ノ ドウ ゴウキン ノ ゾウケイ

Abstract

Copper is an electrically and thermally conductive material widely used in industry, and copper-based materials are expected to facilitate a future society with a high degree of digital transformation. Laser beam powder bed fusion（LB-PBF）, a metal additive manufacturing method, is a promising technology that can provide functional products with arbitrarily complex shapes, controlled microstructures and crystal orientations. However, due to the low laser absorption and high thermal conductivity of copper, fabrication of copper-based functional materials by LB-PBF has been a major challenge. In this article, we fabricated zirconium-containing copper-based alloys with enhanced laser absorption using LB-PBF and optimized the process parameters to obtain functional high-density products. The alloys fabricated using LB-PBF achieved higher densities and were characterized by directional microstructures, and thus exhibited higher electrical conductivity than the as-cast alloys, as well as pure Cu fabricated using LB-PBF.

Journal

• Journal of Smart Processing

  Journal of Smart Processing 10 (4), 265-269, 2021-07-10

  Smart Processing Society for Materials, Environment & Energy (High Temperature Society of Japan)

Keywords

• Laser Beam Powder Bed Fusion（LB-PBF）
• Copper Alloy
• Electrical Resistivity
• Scan S trategy
• Controlled Microstructure

Details

• CRID: 1390851862123020672
• NII Article ID: 130008069940
• NII Book ID: AA12553487
• DOI: 10.7791/jspmee.10.265
• ISSN: 21871337
• ISSN: 2186702X
• NDL BIB ID: 031614256
• Web Site: http://id.ndl.go.jp/bib/031614256
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031614256
• Web Site: https://www.jstage.jst.go.jp/article/jspmee/10/4/10_265/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed