Process for producing precise cut surfaces

Details Process for producing precise cut surfaces Process for producing precise cut surfaces

1997-12-09

2000-10-03

Bryant, David P.

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

72334, 72335, B23P 1304

Patent

active

061255270

ABSTRACT:
In a process for producing precise cut surfaces on a workpiece by stamping or blanking, in particular by fine-edge blanking, a contour first is stamped or blanked out at a distance (a) from the actual contour of the workpiece, and the workpiece then is scraped down to its final contour. It is intended here, in a first step, for only up to part of the thickness (d) of the workpiece to be scraped and, in a following step, for the contour of the workpiece to be achieved by scraping in the opposite direction to the first step.

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English translation of Swiss Patent No. 665,367 (15 pages), May 1988.

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