Apparatus and method for deforming a workpiece
US5515705A · kind A · utility
20Cited by
12References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 23, 1992 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Jan 23, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0004
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method is provided for controlling the temperature of dies and workpiece throughout a deformation process. Dies are capable of receiving external current to resistively heat the workpiece and dies during the deformation operation, the external current being modulated by feedback temperature readings taken from the workpiece. External current may be provided from a homopolar generator capable of producing pulsed dc current at controllable intervals and magnitudes simultaneously through the dies and workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.