Superplasticity forming mould and mould insert
US6935150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D37/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The mould (10) includes at least one part (20), intended to be in contact with the component (12) being moulded, made from sintered vitreous silica. According to the process, said component (12) is formed by the superplastic forming in the mould (10) of a plate (18) made of a material capable of undergoing superplastic deformation, for example titanium or titanium alloy, aluminium or aluminium alloy, or any material exhibiting superplastic properties. Preferably, a barrier is formed between at least a part of the contact surfaces of the mould (10) and the component (12) being moulded, for example by coating with boron nitride, at least partially, the contact surfaces of the mould (10) and the component (12) being moulded, before placing the plate (18) in the mould (10), and/or by injecting an inert gas, notably helium or argon, between the contact surfaces of the mould (10) and the component (12) being moulded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.