Joining method and machining head and manufacturing machine for carrying out the method

US11518112B2 · kind B2 · utility

Assignees

• AIRBUS OPERATIONS LIMITED · DE
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Norbert Heltsch · Hamburg, DE
• Jens Standfuss · Pirna, DE
• Annett Klotzbach · Dresden, DE

Key dates

• Filing date: Dec 23, 2019
• Grant date: Dec 6, 2022
• Expiry date: May 5, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64C2001/0072
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A joining method for connecting at least two thermoplastic workpieces is provided to permit the joining even of non-transparent carbon fiber reinforced plastics parts by means of laser welding, in which a splice is produced at the edge regions of the workpieces and the workpieces are subsequently positioned relative to one another in such a manner that the opposite splice regions bound a seam region. Connecting bodies are then inserted into the seam region and heated by means of local heat input by laser beam such that a fixed integrally bonded connection forms between the workpieces and the connecting bodies.