Heated die for hot forming
US7159437B2 · kind B2 · utility
16Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Oct 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/709
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hot forming tool is heated with multiple electrical resistance cartridge heaters. The heaters are located in the body of the tool so as to maintain the entire forming surface within a predetermined temperature range. Numerical thermal and optimization analyses direct the placement of the heaters so that when each heating element is simultaneously powered on for an identical fraction of the time, an acceptable temperature distribution will be produced within the tool at the tool operating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.