Method of joining a functional element, having an attachment part, with a metal sheet

US10160074B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Jochen Rintelmann · Dessau, DE
• Matthias Egner · Bogen, DE

Key dates

• Filing date: Jun 24, 2015
• Grant date: Dec 25, 2018
• Expiry date: Sep 29, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D39/00
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a method for joining a functional element with a metal sheet, with the functional element having an attachment part for attachment of a structure to the metal sheet, a cold forming process employed for the metal sheet is also used to mark the metal sheet with a sink mark by which a joining position of the metal sheet with the functional element is indicated. After the functional element is joined with the metal sheet at the joining position, the joining position is checked with respect to a position of the functional element inside of the sink mark.