- 专利标题： Grain size control in laser based additive manufacturing of metallic articles
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申请号： US15409483申请日： 2017-01-18
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公开(公告)号： US10376960B2公开(公告)日： 2019-08-13
- 发明人: John A. Sharon , Daniel V. Viens , Tahany Ibrahim El-Wardany , Gajawalli V. Srinivasan , Joseph J. Sangiovanni , Ranadip Acharya
- 申请人： United Technologies Corporation
- 申请人地址： US CT Farmington
- 专利权人： United Technologies Corporation
- 当前专利权人： United Technologies Corporation
- 当前专利权人地址： US CT Farmington
- 代理机构： Kinney & Lange, P.A.
- 主分类号： B22F5/00
- IPC分类号： B22F5/00 ; B33Y10/00 ; B33Y80/00 ; B22F3/105 ; B23K26/342 ; F01D5/02 ; B22F7/06 ; B23K26/00 ; B23K26/082 ; B23K101/00 ; B23K103/18
摘要：
An additively manufactured alloy component has a first portion formed of the alloy and having a first grain size, and a second portion formed of the alloy and having a second grain size smaller than the first grain size. In an embodiment, the alloy component is an alloy turbine disk, the first portion is a rim region of the alloy turbine disk, and the second portion is a hub region of the alloy turbine disk. The first and second grain sizes may be achieved by controllably varying the laser power and/or scan speed during additive manufacturing.
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