Can tooling components
US5396788A · kind A · utility
5Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Sep 4, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D37/01
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to improved materials for fabricating can bodies. In particular, the present invention relates to can tooling components fabricated from whisker-reinforced silicon nitride having from about 5 to about 15 weight percent whiskers with an average diameter of at least about 0.75 micrometers. The material preferably has a thermal expansion coefficient of less than about 3.5.times.10.sup.-6 per .degree.C. and a friction coefficient of from about 0.20 to about 0.24. The present invention also provides a method for reducing the trim height of can bodies formed using a can tooling apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.