Method for producing a plastic-metal hybrid component

US10870174B2 · kind B2 · utility

Assignee

• inpro Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH · DE

Inventors

• Olaf Hoyer · Westerburg, DE
• Matthias Schulenburg · Berlin, DE
• Michael Minkow · Berlin, DE
• Gerd Eßer · Kleinmachnow, DE

Key dates

• Filing date: Dec 12, 2016
• Grant date: Dec 22, 2020
• Expiry date: Aug 23, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2605/08
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for producing a plastic-metal hybrid component, in which, in order to improve the adhesion of a metal surface, provided with a corrosion protection layer, of a base body made from metal and at least one plastic component, the corrosion protection layer of the metal surface of the base body is provided with a surface structure having undercuts. In order to avoid damage to the corrosion protection layer a filler material that binds well with the corrosion protection layer is applied on the corrosion protection layer in a specific and limited manner, in the form of successive, preferably metal elements having geometrically determined and/or geometrically indeterminate shape, via relative movement with respect to same. The elements of the filler material applied to the corrosion protection layer are each melted, for example by means of a laser, and welded on the corrosion protection layer, producing the surface structure, having the undercuts, of the corrosion protection layer of the metal surface of the base body. In a subsequent direct spraying process, the undercuts of the surface structure are at least partially filled with a thermoplastic …