发明名称 |
Investment casting cores and methods |
摘要 |
An investment casting pattern is formed by forming a metallic first core element (50) including at least one recess (34). The first core element (50) is engaged to at least a mating one of an element (60) of a die and a second core element. The recess (34) serves to retain the first core element (50) relative to the mating one. The die is assembled and a sacrificial material is introduced to the die to at least partially embed the first core element. The recess (34) may be pre-formed prior to cutting the first core element (50) from a larger sheet of material. |
申请公布号 |
EP1652603(A3) |
申请公布日期 |
2007.06.27 |
申请号 |
EP20050256680 |
申请日期 |
2005.10.27 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
SNYDER, JACOB A.;BEALS, JAMES T. |
分类号 |
B22C21/14;B22C7/04;B22C9/02;B22C9/10;F01D5/14;F01D5/18 |
主分类号 |
B22C21/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|