Chemical milling process and solution for cast titanium alloys
US6793838B2 · kind B2 · utility
6Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Jul 4, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F1/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a chemical milling solution and a chemical milling process for removing a desired depth of material from metal parts. The milling solution contains nitric acid, hydrofluoric acid, a wetting agent, such as a surfactant, dissolved titanium, and the balance water. The solution is maintained at a temperature in the range of from about 110° F. to about 130° F. The metal part to be milled is immersed in the milling solution for a time sufficient to remove a desired depth of material from at least one surface of the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.