Tool and method for producing stamped parts
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United States of America Patent
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Jun 6, 2017
Grant Date -
Apr 16, 2015
app pub date -
Aug 25, 2014
filing date -
Aug 28, 2013
priority date (Note) -
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Abstract
An upper die part includes an embossing bell, a stripper ring, and an inner shape embossing element. The stripper ring has an embossing surface with a corrugated profile on the embossing surface. A lower die part includes an embossing anvil having a corrugated profile on its embossing surface. The embossing bell and the inner shape embossing element each are provided with an embossing shoulder, which are disposed, with respect to the corrugated profile of the stripper ring, in the stroke direction in such a way that the shoulders can seize the burrs only alter the corrugating step. The corrugating step takes place prior to burr compression. The outer and inner contours of the disk are not able to change positions, but are able to change shapes on the burr side after the corrugating step.
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