| 发明名称 | Casting pattern | ||
| 摘要 | A casting pattern for a lost-pattern casting, the pattern being in a shape of a turbine engine blade with a root and a body on either side of a platform that is substantially perpendicular to a main axis of the blade, and a method of producing a shell mold from the pattern, and a casting method using the shell mold. The blade body presents a pressure side, a suction side, a leading edge, and a trailing edge. The pattern also includes an expansion strip adjacent to the trailing edge, and a refractory core embedded in the pattern but presenting, both on the pressure side and on the suction side, a respective flush varnished surface between the trailing edge and the expansion strip. A web extends between the platform and the expansion strip and presents a free edge between them. | ||
| 申请公布号 | US9616489(B2) | 申请公布日期 | 2017.04.11 |
| 申请号 | US201314427485 | 申请日期 | 2013.09.06 |
| 申请人 | SNECMA | 发明人 | Coyez Dominique;Fargeas Serge |
| 分类号 | B22C7/02;B22C9/04;B22D27/04;C30B11/00;C30B29/52;B22C9/22;B22D29/00 | 主分类号 | B22C7/02 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A pattern for lost-pattern casting, the pattern being in a shape of a turbine engine blade with a root and a body on either side of a platform that is substantially perpendicular to a main axis of the blade, the blade body presenting a pressure side, a suction side, a leading edge, and a trailing edge, the pattern comprising: an expansion strip adjacent to the trailing edge, and a refractory core embedded in the pattern but presenting, both on the pressure side and on the suction side, a respective flush varnished surface between the trailing edge and the expansion strip; and a web extending between the platform and the expansion strip and presenting a free edge between them. | ||
| 地址 | Paris FR | ||