Mehrteilige Stanzniet-Form mit verlängerter Standzeit

Die (16) for shaping a self pierce rivet when the self pierce rivet is driven into workpieces (30), comprises an anvil (40) having a perimeter surface and collar (42) having an inner surface that contacts the perimeter surface of the anvil where collar is affixed to the anvil, so that the anvil and...

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Bibliographic Details
Main Author KERNOSKY, STEPHEN
Format Patent
LanguageGerman
Published 17.04.2008
Subjects
FORGE FURNACES
FORGING
HAMMERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
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Summary:Die (16) for shaping a self pierce rivet when the self pierce rivet is driven into workpieces (30), comprises an anvil (40) having a perimeter surface and collar (42) having an inner surface that contacts the perimeter surface of the anvil where collar is affixed to the anvil, so that the anvil and collar cooperate to reduce stress induced breaking of the die. An independent claim is also included for a drive system (10) for driving a self pierce rivet into workpieces, comprising a fixture having an aperture (20), a first die (24), a second die (26), and an actuator (18) proximate the fixture, the actuator being configured to move the second die in an axial direction between a retracted position and an advanced position, to axially drive the self pierce rivet, where first die is a die for shaping a self pierce rivet when the self pierce rivet is driven into workpieces.
Bibliography:Application Number: DE20051045376