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Proceedings Paper

Laser hybrid joining of plastic and metal components for lightweight components
Author(s): J. Rauschenberger; A. Cenigaonaindia; J. Keseberg; Daniel Vogler; U. Gubler; F. Liébana
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Paper Abstract

Plastic-metal hybrids are replacing all-metal structures in the automotive, aerospace and other industries at an accelerated rate. The trend towards lightweight construction increasingly demands the usage of polymer components in drive trains, car bodies, gaskets and other applications. However, laser joining of polymers to metals presents significantly greater challenges compared with standard welding processes. We present recent advances in laser hybrid joining processes. Firstly, several metal pre-structuring methods, including selective laser melting (SLM) are characterized and their ability to provide undercut structures in the metal assessed. Secondly, process parameter ranges for hybrid joining of a number of metals (steel, stainless steel, etc.) and polymers (MABS, PA6.6-GF35, PC, PP) are given. Both transmission and direct laser joining processes are presented. Optical heads and clamping devices specifically tailored to the hybrid joining process are introduced. Extensive lap-shear test results are shown that demonstrate that joint strengths exceeding the base material strength (cohesive failure) can be reached with metal-polymer joining. Weathering test series prove that such joints are able to withstand environmental influences typical in targeted fields of application. The obtained results pave the way toward implementing metalpolymer joints in manufacturing processes.

Paper Details

Date Published: 9 March 2015
PDF: 8 pages
Proc. SPIE 9356, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications IV, 93560B (9 March 2015); doi: 10.1117/12.2080226
Show Author Affiliations
J. Rauschenberger, Leister Technologies AG (Switzerland)
A. Cenigaonaindia, Leister Technologies AG (Switzerland)
J. Keseberg, Leister Technologies AG (Switzerland)
Daniel Vogler, Leister Technologies AG (Switzerland)
U. Gubler, Leister Technologies AG (Switzerland)
F. Liébana, Tecnalia Research and Innovation (Spain)

Published in SPIE Proceedings Vol. 9356:
High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications IV
Friedhelm Dorsch, Editor(s)

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