Precision forging of titanium
US4055975A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1977 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | Apr 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/70
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process of precision forging of titanium or a titanium alloy in which the forging stock and a segmented die are first heated to forging temperature while separated, and are then assembled together and heated again to that temperature, with the stock being covered by a protective coating preferably containing glass grit, and the die sections being coated with lubricant. The heated die and contained heated forging stock are then inserted in a heated holder and the stock subjected to forging force, to partially but not completely deform the stock to the shape of the die cavity, following which the die and stock are separated and the stock allowed to cool, flashing is removed from the stock, the die is cleaned, the die and stock are recoated and then reheated separately and then together, and the stock is forged again to assume more closely the shape of the die cavity. The series of recoating, heating and forging steps are performed at least twice, and may be repeated one or more additional times as necessary to completely forge the part to the die cavity shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.