Method and means for metal sizing employing thermal expansion an

Details Method and means for metal sizing employing thermal expansion an Method and means for metal sizing employing thermal expansion an

1989-02-28

1991-02-05

Larson, Lowell A.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

723424, 723427, B21D 3920

Patent

active

049894331

ABSTRACT:
An improved method and means for sizing metal configuration through the application of thermal expansion and contraction of a shaping mandrel. The thermally induced changes in the shaping mandrel are produced from within the body at the mandrel.

REFERENCES:
patent: 2944500 (1960-07-01), Raynes
patent: 3315513 (1967-04-01), Ellenburg
patent: 3383900 (1968-05-01), Van Hartesveldt
patent: 3495434 (1970-02-01), Lavine
patent: 4604785 (1986-08-01), Eddens

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