| 专利名称： | Methods for making ceramic casting cores and cores |
| 公开（告）号： | |
| 公开（公告）日： | 2007-04-11 00:00:00 |
| 申请（专利）号： | EP20060255028(EP1772210) |
| 申请日： | 2006-09-28 00:00:00 |
| 发明（设计）人： | GEN ELECTRIC (US) |
| (申请)专利权（人）： | WANG HSIN-PANG (US);LEE CHING-PANG (US) |
| 内容： | A method for making a ceramic casting core is described. The casting core has a pre-selected shape, and is characterized as a plurality of parallel cross-sections. Each cross-section has a pre-selected pattern and thickness. The method includes the steps of melting a ceramic core material (16) with a laser beam (140) in a laser consolidation process, and depositing the molten material to form a first layer (116) in the pattern of a first cross-section of the core, the thickness of the first deposited layer (116) corresponding to the thickness of the first cross-section. A second layer (140) is formed in a similar manner, followed by the formation of additional layers, until the core is complete. A method of modifying the shape of an existing ceramic core with this process is also described, as is a method of making a gas turbine component by investment casting, using the ceramic core. Related articles and processes are also described. |
发布日期：2007-08-27 11:16:00