发明授权
US07241415B2 Metallic parts fabrication using selective inhibition of sintering (SIS)
有权
使用选择性抑制烧结(SIS)的金属零件制造
- 专利标题: Metallic parts fabrication using selective inhibition of sintering (SIS)
- 专利标题(中): 使用选择性抑制烧结(SIS)的金属零件制造
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申请号: US10610622申请日: 2003-06-30
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公开(公告)号: US07241415B2公开(公告)日: 2007-07-10
- 发明人: Behrokh Khoshnevis
- 申请人: Behrokh Khoshnevis
- 申请人地址: US CA Los Angeles
- 专利权人: University of Southern California
- 当前专利权人: University of Southern California
- 当前专利权人地址: US CA Los Angeles
- 代理机构: Fish & Richardson P.C.
- 主分类号: B22F3/16
- IPC分类号: B22F3/16 ; B22F7/02 ; B23K26/00 ; B29C35/08
摘要:
A selective inhibition of sintering (SIS) technique may be used to fabricate a three-dimensional (3-D) dense metal object from a binderless metal powder. Layers of metal powder are provided on a build tank. For each layer, regions of the layer are sinter-inhibited, e.g., by depositing a sinter-inhibiting material such as a ceramic slurry, a metal salt, or oxidizing metal particles in the powder using chemicals or a concentrated heat source. Each layer may be compacted before the next layer is provided. A final compact may then be sintered. Unwanted sintered sections may be removed from the compact at boundaries formed by the sinter-inhibited (unsintered) regions, and the object extracted.