CNC core removal from casting passages
US6474348B1 · kind B1 · utility
22Cited by
23References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D29/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of removing ceramic core material from an internal passage of a superalloy airfoil casting using a CNC controlled fluid spray nozzle in a manner that the fluid spray nozzle is caused to laterally scan and/or rotary orbit an area of one or more openings of one or more passages at an exterior casting surface to improve removal of material residing in the passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.