Method of correcting the dimension of workpieces

Details Method of correcting the dimension of workpieces Method of correcting the dimension of workpieces

1995-06-07

1997-09-16

Larson, Lowell A.

Metal deforming

Process

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

72254, 72701, B21J 506

Patent

active

056668490

ABSTRACT:
Sliced workpieces severed from a metal extrusion transversely of it and into a desired thickness, or bent ones made from the extruded metal pipes, are restrained at their regulated correct positions each in its entirety or in part. Subsequently, the workpieces are compressed in a direction to the thickness or in the direction perpendicular to the primary bending direction. Plastic deformation of or exceeding 0.5%, or more preferably 2-5%, will be produced in each workpiece. Alternatively, those sliced or bent workpieces may be pressed in a direction to that of thickness or in the direction perpendicular to a previous bending, after each workpiece is restrained in its entirety or in part at the regulated correct dimension.

REFERENCES:
patent: 2268772 (1942-01-01), Peterson
patent: 2357605 (1944-09-01), Nivison
patent: 3508427 (1970-04-01), Broderick

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