Optimization of Ultrasonic Welding of Polypropylene Sheets

Schramkó, Márton and Stadler, Róbert Gábor and Pinke, Péter and Kovács, Tünde Anna (2024) Optimization of Ultrasonic Welding of Polypropylene Sheets. ACTA MATERIALIA TRANSYLVANICA (EN), 7 (2). pp. 109-112. ISSN 2601-8799

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Abstract

Nowadays, polymers have grown into a leading group of materials. Accordingly, many technical polymersare used in industry. As the ending knee absorption increases, the binding design is also being studied continuously. In addition to mechanical and glued joints, different welding processes stand out, such as laser welding, stirrer friction welding, and ultrasound welding. The research was carried out on polypropylene, theplastic called PP. The aim of the study is to examine the ultrasonic welding of polypropylene sheets. Duringwelding processes, we examine the effect of parameters such as welding time, amplitude and main load onthe strength of the welding seam. Based on the test results, it was possible to create high-quality joints. Thehighest seam strengths were obtained with a welding time of 1.2 s and an amplitude of 55 μm. The effect ofthe main load on the strength of the seams was minimal.

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