Expanding die for clinching and riveting operations
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United States of America Patent
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Aug 1, 2017
Grant Date -
Aug 27, 2015
app pub date -
Feb 21, 2014
filing date -
Feb 21, 2014
priority date (Note) -
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Abstract
A die for use with a cold-formed joint tool such as a clinching tool or clinch punch or self-piercing rivet punch. A split die made of a plurality of partial cup-shaped segments is disposed within a collar that defines a recess. The recess includes a forming area in which the cold-formed joint is formed and a relieved area in which the partial cup-shaped segments are shifted radially outwardly after forming to permit removal of the cold-formed joint tool from the cold-formed joint.
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