PUNCH-RIVETING DIE AND PUNCH-RIVETING METHOD

摘要

A punch-riveting die comprises a basic body, which has a recess for forming an underside of a punch-rivet joint, the recess having a base and an annular wall. In a central region of the base, the die includes an annular radial-flow inhibiting device, which inhibiting device limits a radial material flow out of the inner region of the annular radial-flow inhibiting device.

主权项

1. A punch-riveting die of a punch-riveting tool for setting a semi-hollow punch rivet with a rivet shank inner diameter (DNi) into a punch rivet joint, the punch-riveting die comprising:
a basic body including an inner base and an inner annular wall, the inner base and inner annular wall partially defining a recess for forming an underside of a punch-rivet joint, the recess defining an axial recess depth (TA); and wherein the basic body further includes an annular radial-flow inhibiting device located in a central region of the inner base, the radial-flow inhibiting device operative to limit radial material flow out of an inner region of the annular radial-flow inhibiting device during formation of the punch rivet joint.