DIE FOR SELF PIERCING RIVET
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United States of America Patent
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Issued Date -
Jun 27, 2013
app pub date -
Dec 21, 2012
filing date -
Dec 22, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A die for use in a self-piercing rivet fastening device comprising a die and a punch for driving a self-piercing rivet into fastened members arranged on top of the die, wherein the upper surface of the die defines a cavity formed for receiving portions of the fastened members thrust out by the self-piercing rivet driven by the punch, and the cavity is formed as a concave spherical surface having a single radius R centered on the central axis of the cavity.
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