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Laser Welding of Transmitting High-Performance Engineering Thermoplastics
Fábio A O Fernandes1, António B Pereira1, Bernardo Guimarães1
1TEMA-Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
Polymers
|February 14, 2020
Summary
Researchers explored laser welding of ERTALON® 6 SA, a high-performance thermoplastic. Tensile tests confirmed the weld quality, demonstrating the viability of this laser processing technique for creating strong, lightweight structures.
Area of Science:
- Materials Science and Engineering
- Polymer Processing
- Additive Manufacturing
Background:
- Laser welding offers cost-effective and reliable joining solutions for advanced materials.
- Increasing demand for high-strength, lightweight structures drives innovation in polymer joining.
- Laser transmission welding typically requires two polymers with differing optical properties.
Purpose of the Study:
- To analyze the weldability of a solely transmitting high-performance engineering thermoplastic.
- To evaluate the joint strength of ERTALON® 6 SA welded using laser technology.
- To develop a numerical model supporting experimental findings.
Main Methods:
- Welding of white ERTALON® 6 SA using a pulsed Nd:YAG laser.
- Tensile testing to assess the mechanical strength and quality of laser-welded joints.
- Development of a numerical model to simulate and understand the welding process.
Main Results:
- Successful laser welding of ERTALON® 6 SA was achieved.
- Tensile tests provided quantitative data on the strength of the welded joints.
- The numerical model supported the experimental observations and theoretical explanations.
Conclusions:
- Laser processing is a viable and effective method for joining high-performance engineering thermoplastics like ERTALON® 6 SA.
- The study validates the use of laser welding for creating high-strength, lightweight thermoplastic structures.
- This research contributes to advancing laser welding techniques for demanding applications.
