Method and apparatus for superplastic forming

Details Method and apparatus for superplastic forming Method and apparatus for superplastic forming

2008-02-14

2009-11-10

Jones, David B (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

C072S060000, C072S342700, C029S421100

Reexamination Certificate

active

07614270

ABSTRACT:
The present invention provides a method and apparatus for forming a ductile sheet or work piece into a part or component. The method includes using a forming apparatus wherein the workpiece is placed between and upper die and a blank holder and then lowered onto a punch such that continued lowering of the upper die draws the workpiece around the punch. Once the draw process is complete, gas pressure acts on one side of the workpiece to press the workpiece against a forming surface of the punch to complete the forming process.

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