基本信息:
- 专利标题： Method for forming single crystal parts using additive manufacturing and remelt
- 专利标题（中）：使用增材制造和再熔化形成单晶部件的方法
- 申请号：EP14164970.7 申请日：2014-04-16
- 公开(公告)号：EP2792771B1 公开(公告)日：2017-12-27
- 发明人： McBrien, John , Castle, Lea Kennard , Spangler, Brandon W.
- 申请人： United Technologies Corporation
- 申请人地址： 10 Farm Springs Road Farmington, CT 06032 US
- 专利权人： United Technologies Corporation
- 当前专利权人： RAYTHEON TECHNOLOGIES CORPORATION (N.D.GES.D.S, US
- 当前专利权人地址： RAYTHEON TECHNOLOGIES CORPORATION (N.D.GES.D.S, US
- 代理机构： Hall, Matthew Benjamin
- 优先权： US201361813871P 20130419
- 主分类号： C30B29/52
- IPC分类号： C30B29/52 ; C30B11/00 ; C30B21/00 ; C30B21/02 ; B22F5/04 ; B22F3/105
摘要：
A method of forming a metal single crystal turbine component (10) with internal passageways includes forming a polycrystalline turbine blade with internal passageways by additive manufacturing and filling the passageways with a core ceramic slurry. The ceramic slurry is then treated to harden the core (20) and the turbine component is encased in a ceramic shell which is treated to form a ceramic mold. The turbine component in the mold is then melted and directionally solidified in the form of a single crystal. The outer shell and inner ceramic core are then removed to form a finished single crystal turbine component with internal passageways.