Verbindungsverfahren, Stanznietanordnung, Matrize und Stanznietwerkzeug

Details

Veröffentlichungs-Nr.

EP4541483

Aktenzeichen

EP23203998

Anmeldetag

17. Oktober 2023

Veröffentlichung

23. April 2025

Rechtsraum

EP

IPC

B21J15/02B21J15/04B21J15/36F16B5/02F16B5/04F16B19/05F16B19/08

Abstract

A method for joining at least two workpieces (18₁, 18₂) using a punch rivet arrangement (20), the punch rivet arrangement (20) comprising a rivet (22) and a collar (40), wherein the rivet (22) has at least one radial recess (28), comprising the steps of (i) placing the rivet (22) on a first side (16₁) of the workpieces which form a stacked workpiece arrangement (16); (ii) placing the collar (40) on a die (14) arranged on a second side (16₂) of the workpiece arrangement (16), (iii) punching the rivet (22) with a punch force (FP) through the workpiece arrangement (16) in an axial direction (L), wherein the workpiece arrangement (16) is supported by a support surface (46) of the collar (40), and wherein the collar (40) is supported by a first engagement surface (56) the die (14); and (iv) modifying the collar (40) by applying a modification force (FM) to the collar (40), wherein the modification force (FM) is higher than the punch force (FP), and wherein the modification of the collar (40) allows a second engagement surface (58) of the die (14) to apply a radial swaging force (FSr) onto the collar (40) so that material of the collar (40) flows into the at least one radial recess (28) of the rivet (22).

Anmelder

Firma

Newfrey LLC

Land

🇺🇸 USA

Fachgebiete