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Laser Beam Joining of the Material Pairings Aluminum/Polyamide and Aluminum/Polyvinylchloride

The article presents a process optimization of laser beam joining of the material pairings EN AW-6082 (AlSi1MgMn)/polyamide 6.6 and EN AW-6082/polyvinylchloride hard. The materials selection focuses on their distinct mechanical and electrical properties. Al and PA-6.6 are both widely used but dissimilar light-weighting materials for engineering applications, while Al and PVC represent the combination of a weldable electrical conductor with typical insulation material. The contrariety of these materials potentially acts complementary as highly integrated hybrid structures. However, this dissimilarity also poses distinct challenges to joining polymers with metals. Usually, the material pairing aluminum/plastic has been bonded for industrial applications in the recent past. The investigations provide information on the influence of various parameters on the joint and the individual joining partners themselves and which combination offers the best joining results. In addition, it is shown that specific pre-treatment methods of the test materials, especially for aluminum, can significantly increase the joining quality and offer further optimization potential. Furthermore, the complexity of such an optimization process becomes apparent because it is not only limited to the parameter variation of the laser. The periphery design, such as the sample clamping and the pre-treatment of the joining partners, are similarly essential adjustment parameters. The laser-joined specimens are compared in a tensile test against conventionally bonded specimens for their mechanical-technological properties. It can be shown that the shear strength of joined specimen is significantly higher in comparison to the bonded specimen. Thereby an alternative to conventional bonding processes can be offered. Moreover, the extremely short process time of laser beam joining combined with instant handling is particularly attractive for industrial applications. The laser joining process described in this article aims to contribute to the future development of laser-based multi-material additive manufacturing technologies. In this way, the envisioned direct joining principle could enable the production of highly integrated parts of unseen complexity.

Laser Beam Joining, Aluminum/Plastics, Comparison to Conventionally Bonded Samples

APA Style

Christian Lamberti, Peter Böhm. (2022). Laser Beam Joining of the Material Pairings Aluminum/Polyamide and Aluminum/Polyvinylchloride. Engineering Physics, 6(1), 13-19.

ACS Style

Christian Lamberti; Peter Böhm. Laser Beam Joining of the Material Pairings Aluminum/Polyamide and Aluminum/Polyvinylchloride. Eng. Phys. 2022, 6(1), 13-19. doi: 10.11648/j.ep.20220601.13

AMA Style

Christian Lamberti, Peter Böhm. Laser Beam Joining of the Material Pairings Aluminum/Polyamide and Aluminum/Polyvinylchloride. Eng Phys. 2022;6(1):13-19. doi: 10.11648/j.ep.20220601.13

Copyright © 2022 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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