Elevated temperature envelope forming

Details Elevated temperature envelope forming Elevated temperature envelope forming

1990-09-27

1992-09-08

Jones, David

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 63, 298897, 294211, B21D 2602

Patent

active

051448254

ABSTRACT:
Elevated temperature envelope forming includes enclosing a part blank and form tool within an envelope sealed against the atmosphere, heat treating the combination while forming pressure holds the envelope and part against the form tool, and allowing part cool down to occur in an inert atmosphere with forming pressure removed. The forming pressure is provided by evacuating the envelope and may be aided by differential force applied between the envelope and the form tool.

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