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Title: Method of making a metallic structure by combined superplastic forming and forging

Abstract: A method for making metallic structures especially those having a complex variable thickness, utilizing superplastic forming and forging. A metal preform having superplastic characteristics is positioned relative to a shaping member which substantially defines the final configuration of the preform. The preform is superplastically expanded and forged against the shaping member to produce the final structure.


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Inventors: Hamilton, C. Howard (Thousand Oaks, CA, US)
Ascani, Leonard A. (Palos Verdes Estates, CA, US)

Application Number: 736671
Filing Date: 1976-10-28
Publication_date: 1978-09-12
Assignee: Rockwell International Corporation (El Segundo, CA)
Primary Class(es): 72/358 72/709, 148/564
Other Classes:
US Patent Ref:
3591916Jul, 1971Arthur148/11.
3997369Dec, 1976Grimes et al.148/11.
3998665Dec, 1976Oshida148/11.

Other Refs:
Primary Examiner: Stallard, W.
Assistant Examiner:
Attorney: Silberberg; Charles T.