- 专利标题: SURFACE IMPROVEMENT OF ADDITIVELY MANUFACTURED ARTICLES PRODUCED WITH ALUMINUM ALLOYS
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申请号: US16059595申请日: 2018-08-09
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公开(公告)号: US20180345423A1公开(公告)日: 2018-12-06
- 发明人: Andy Szuromi , Steve Starr , Donald G. Godfrey , Mark C. Morris
- 申请人: HONEYWELL INTERNATIONAL INC.
- 申请人地址: US NJ Morris Plains
- 专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人地址: US NJ Morris Plains
- 主分类号: B23P6/04
- IPC分类号: B23P6/04 ; C23C18/16 ; B23K15/00
摘要:
A method for improving the surface of an aluminum alloy article includes manufacturing the aluminum alloy article using an additive manufacturing technique, wherein the article as-manufactured includes one or more of cracks, roughness, or porosity at a surface of the article; coating the surface of the aluminum alloy article with a diffusion element, the diffusion element being capable of diffusing at least 0.2 mils into the article; heating the aluminum alloy article coated with the diffusion element to cause the diffusion element to diffuse the at least 0.2 mils into the article, thereby forming a diffusion layer of at least 0.2 mils in thickness comprising both aluminum alloy and diffusion element; and removing the diffusion layer from the aluminum alloy article, whereby upon the removing, a resulting improved surface of the article comprises fewer or smaller cracks, reduced roughness, or reduced porosity.