Process for producing precise cut surfaces
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United States of America Patent
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-
Oct 3, 2000
Grant Date -
N/A
app pub date -
Dec 9, 1997
filing date -
Sep 4, 1997
priority date (Note) -
Expired
status (Latency Note)
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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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