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

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タイトル別名
  • Fabrication of Copper Alloys as Conductive Materials via Laser Beam Powder Bed Fusion
  • 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

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抄録

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.

収録刊行物

  • Journal of Smart Processing

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

    一般社団法人 スマートプロセス学会 （旧高温学会）

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