Fluid-assisted non-isothermal stamping of a sheet blank
AssigneeGM Global Technology Operations LLC
InventorsRavi Verma, Jon T. Carter, Paul E. Krajewski
Life of this patent
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Abstract
A method for stamping a desired shape from a sheet blank includes providing the sheet blank. The method also includes locally cooling the sheet blank with a stream of fluid in a predetermined area of high stress concentration to be experienced during forming of the sheet blank into a desired shape. The method additionally includes forming the metal sheet blank into the desired shape in a stamping press with a punch. A system employing the method for forming a sheet blank is also disclosed.
Claims20
A method for stamping a desired shape from a sheet blank, the method comprising:
- locally cooling a sheet blank with a stream of fluid in a predetermined area of high stress concentration to be experienced during forming of the sheet blank into the desired shape;
- and
- forming the metal sheet blank into the desired shape in a stamping press having a punch.
A method for increasing formability of a sheet blank during a stamping operation, the method comprising:
- shifting deformation strain away from a potential failure location on a sheet blank by locally cooling the sheet blank with a stream of fluid;
- and
- stamping the sheet blank into a desired shape between forming dies with a punch.
A system for forming of a sheet blank, the system comprising:
- a stamping press including:
- forming dies;
- and
- a punch;
- a transfer apparatus arranged to deliver the sheet blank to the stamping press;
- and
- a device configured to locally cool the sheet blank with a stream of fluid in a predetermined area of high stress concentration to be experienced during the forming of the sheet blank into a desired shape, the device positioned in at least one of the stamping press and the transfer apparatus.
Dependencies are inferred from the claim text.