High-precision, fine-detail forging process

Details High-precision, fine-detail forging process High-precision, fine-detail forging process

1975-10-09

1977-08-09

Lanham, C.W.

Metal deforming

Process

With attenuation, thickening, elongating or shortening of...

72441, 7245301, 148 115R, B21D 3100

Patent

active

040402860

ABSTRACT:
High-precision, fine-detail forgings are formed from a workpiece material having superplastic forming characteristics by utilizing high strain rate forming to impart the bulk of the total deformation required and superplastic relatively low strain rate forming to impart detail and approach final tolerances in the product.

REFERENCES:
patent: 3420717 (1969-01-01), Fields
patent: 3603126 (1971-09-01), Newman
patent: 3734785 (1973-05-01), Watson
patent: 3753791 (1973-08-01), Swanson
patent: 3804677 (1974-04-01), Swanson
patent: 3843416 (1974-10-01), Cross
"Superplasticity Pulls Ahead in Metal Forming", Iron Age, Nov. 18, 1971.

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