Invention Grant
US06761852B2 Forming complex-shaped aluminum components 失效
形成复杂形状的铝组件

  • Patent Title: Forming complex-shaped aluminum components
  • Patent Title (中): 形成复杂形状的铝组件
  • Application No.: US10095272
    Application Date: 2002-03-11
  • Publication No.: US06761852B2
    Publication Date: 2004-07-13
  • Inventor: Chee-Tian YeoLye-King Tan
  • Applicant: Chee-Tian YeoLye-King Tan
  • Main IPC: B22F322
  • IPC: B22F322
Forming complex-shaped aluminum components
Abstract:
Although MIM (metal injection molding) has received widespread application, aluminum has not been widely used for MIM in the prior art because of the tough oxide layer that grows on aluminum particles, thus preventing metal—metal bonding between the particles. The present invention solves this problem by adding a small amount of material that forms a eutectic mixture with aluminum oxide, and therefore aids sintering, to reduce the oxide, thereby allowing intimate contact between aluminum surfaces. The process includes the ability to mold and then sinter the feedstock into the form of compacted items of intricate shapes, small sizes (if needed), and densities of about 95% of bulk.
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