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Open AccessArticle

Laser Welding of Transmitting High-Performance Engineering Thermoplastics

TEMA—Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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Polymers 2020, 12(2), 402; https://doi.org/10.3390/polym12020402
Received: 27 December 2019 / Revised: 23 January 2020 / Accepted: 4 February 2020 / Published: 10 February 2020
(This article belongs to the Special Issue Laser Processing of Polymer Materials)
Laser processing is a rapidly growing key technology driven by several advantages such as cost and performance. Laser welding presents numerous advantages in comparison with other welding technologies, providing high reliability and cost-effective solutions. Significant interest in this technology, combined with the increasing demand for high-strength lightweight structures has led to an increasing interest in joining high-performance engineering thermoplastics by employing laser technologies. Laser transmission welding is the base method usually employed to successfully join two polymers, a transmitting one through which the laser penetrates, and another one responsible for absorbing the laser radiation, resulting in heat and melting of the two components. In this work, the weldability of solely transmitting high-performance engineering thermoplastic is analyzed. ERTALON® 6 SA, in its white version, is welded by a pulsed Nd:YAG laser. Tensile tests were performed in order to evaluate the quality of each joint by assessing its strength. A numerical model of the joint is also developed to support the theoretical approaches employed to justify the experimental observations. View Full-Text
Keywords: pulsed Nd:YAG laser welding; high-performance engineering thermoplastic; ERTALON 6 SA; polyamide 6; mechanical testing; numerical model pulsed Nd:YAG laser welding; high-performance engineering thermoplastic; ERTALON 6 SA; polyamide 6; mechanical testing; numerical model
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MDPI and ACS Style

Fernandes, F.A.; Pereira, A.B.; Guimarães, B.; Almeida, T. Laser Welding of Transmitting High-Performance Engineering Thermoplastics. Polymers 2020, 12, 402.

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