Investment casting cores and methods
US7134475B2 · kind B2 · utility
17Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Dec 11, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/211
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An investment casting pattern is formed by forming a metallic first core element including at least one recess. The first core element is engaged to at least a mating one of an element of the die and a second core element. The recess serves to retain the first core element 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 may be pre-formed prior to cutting the first core element from a larger sheet of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.