DOWNHOLDING PRESS FOR PRODUCING A SEMI-FINISHED PRODUCT FROM SHEET-METAL MATERIAL HAVING THICKNESS-REDUCED REGIONS, AND METHOD FOR PRODUCING A SHEET-METAL FORMED PART
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United States of America Patent
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Issued Date -
May 16, 2019
app pub date -
Nov 13, 2018
filing date -
Nov 13, 2018
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Abstract
The disclosure relates to a downholding press for producing a semi-finished product from sheet-metal material having thickness-reduced regions, wherein the semi-finished product after forming has regions with mutually dissimilar wall thicknesses and the downholding press has an upper tool and a lower tool as well as a downholding element, and a convexity on the sheet-metal material is generated between the upper tool and the lower tool such that the sheet-metal material is reduced in thickness in regions by elongation, wherein a blocking cam is configured on the downholding element in such a manner that a follow-on of the sheet-metal material is impeded.
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