Drawplate for hot drawing
US4724699A · kind A · utility
1Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | May 22, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C25/025
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Drawplate for hot drawing. This drawplate comprises a central core hooped into a mount and is provided with an axial channel successively defining an intake cone, a working cone, a cylindrical bearing and an outlet. The mount is formed from two parts, which are assembled with one another with a small clearance. The clearance between the parts and the geometry thereof are such that during the drawing operation the core is subject to isostatic stressing. Therefore, it is possible to use for the production of the core, fragile materials, e.g. ceramic materials or refractory alloys, such as cobalt or molybdenum-based superalloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.