Elevated temperature forming method and preheater apparatus
An elevated temperature forming system in which a sheet metal workpiece is provided in a first stage position of a multi-stage pre-heater, is heated to a first stage temperature lower than a desired pre-heat temperature, is moved to a final stage position where it is heated to a desired final stage temperature, is transferred to a forming press, and is formed by the forming press. The preheater includes upper and lower platens that transfer heat into workpieces disposed between the platens. A shim spaces the upper platen from the lower platen by a distance greater than a thickness of the workpieces to be heated by the platens and less than a distance at which the upper platen would require an undesirably high input of energy to effectively heat the workpiece without being pressed into contact with the workpiece.
- Research Organization:
- USAMP (Southfield, MI)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-02OR22910
- Assignee:
- USAMP (Southfield, MI)
- Patent Number(s):
- 8,459,084
- Application Number:
- 12/366,310
- OSTI ID:
- 1084263
- Country of Publication:
- United States
- Language:
- English
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