Laser rapid manufacturing of special pattern Inco 718 nickel based alloy component

Minlin Zhong, Lin Yang, Wenjin Liu, Ting Huang, Jingjiang He

研究成果: Conference article査読

12 被引用数 (Scopus)

抄録

Laser rapid manufacturing based on laser cladding is a novel layer additive manufacturing technology, which can be well used for producing specific material, geometry and properties components normally unavailable or very costly by conventional methods. This paper presents a project research work on laser rapid manufacturing of Inco 718 nickel based alloy component with special pattern for aeronautical application. The required pattern Inco 718 nickel based alloy component was manufactured directly by laser deposition with optimized parameters: laser power: 800W, laser beam diameter: 0.8mm, scanning speed: 0.5m/min, powder feeding rate: 3g/min; The basic microstructure of laser deposited sample is directionally solidified columnar structure, with metallurgical bound to the substrate. Laser deposited component has good metallurgical and compositional and hardness homogeneity. The average hardness is about Hv0.2 440. The tensile strength of the laser deposited Inco 718 sample is respectively 121 and 116 kgf/mm2 at room temperature and at 650°C,which are a little bit less than the data of forged Inco 718 plate 142 and 127 kgf/mm2 due to its directional solidified columnar structure perpendicular to the tensile test force.

本文言語English
論文番号12
ページ(範囲)59-66
ページ数8
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
5629
DOI
出版ステータスPublished - 2005
外部発表はい
イベントLasers in Material Processing and Manufacturing II - Beijing, China
継続期間: 2004 11 102004 11 12

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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