Version 1
: Received: 6 December 2023 / Approved: 7 December 2023 / Online: 7 December 2023 (06:24:30 CET)
How to cite:
Tillmann, W.; Wojarski, L.; Hopmann, C.; Fatherazi, P.; Timmer, C. Influence of Metallic Interlayers on the Lap Shear Strength of Laser Joined Plastic and Metal Hybrids. Preprints2023, 2023120483. https://doi.org/10.20944/preprints202312.0483.v1
Tillmann, W.; Wojarski, L.; Hopmann, C.; Fatherazi, P.; Timmer, C. Influence of Metallic Interlayers on the Lap Shear Strength of Laser Joined Plastic and Metal Hybrids. Preprints 2023, 2023120483. https://doi.org/10.20944/preprints202312.0483.v1
Tillmann, W.; Wojarski, L.; Hopmann, C.; Fatherazi, P.; Timmer, C. Influence of Metallic Interlayers on the Lap Shear Strength of Laser Joined Plastic and Metal Hybrids. Preprints2023, 2023120483. https://doi.org/10.20944/preprints202312.0483.v1
APA Style
Tillmann, W., Wojarski, L., Hopmann, C., Fatherazi, P., & Timmer, C. (2023). Influence of Metallic Interlayers on the Lap Shear Strength of Laser Joined Plastic and Metal Hybrids. Preprints. https://doi.org/10.20944/preprints202312.0483.v1
Chicago/Turabian Style
Tillmann, W., Patricia Fatherazi and Christian Timmer. 2023 "Influence of Metallic Interlayers on the Lap Shear Strength of Laser Joined Plastic and Metal Hybrids" Preprints. https://doi.org/10.20944/preprints202312.0483.v1
Abstract
The strength of laser joined metal and plastic hybrids is based purely on adhesion. Unpolar plastics like polypropylene depend solely on the mechanical adhesion while polar plastics like polyamide 6.6 develop covalent bonds with the metal. In this research the influence of different surface metallizations on the lap shear strength of laser joined hybrids was investigated. Sandblasted AISI 304 was used as base metal and reference. Aluminum and titanium coatings were deposited by the means of Arc-PVD. Polypropylene and polyamide 6.6 were utilized as polar und unpolar plastics. The lap shear strength of all hybrids with polyamide 6.6 was higher than the polypropylene samples. For all investigated variations of the laser power, scanning speed and the cohesive and adhesive failure modes, the samples joined with the sandblasted AISI 304 showed the highest lap shear strength. The reduction in lap shear strength for the coated samples was due to the increased difference in thermal conductivity between the plastics and the coating materials. This lead to increased warping and residual stresses. It can be concluded that the thermal properties of the metallization in laser joined metal and plastic hybrids has a high impact on the lap shear strength.
Copyright:
This 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.
