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http://dx.doi.org/10.20910/JASE.2022.16.1.12

A Study on the Evaluation Method of Lap Shear Strength for Induction Welding of Thermoplastic Composites using Tensile Test  

Baek, Inseok (School of Mechanical and Aerospace Engineering, Gyeongsang National University, ERI)
Lee, Seoksoon (School of Mechanical and Aerospace Engineering, Gyeongsang National University, ERI)
Publication Information
Journal of Aerospace System Engineering / v.16, no.1, 2022 , pp. 12-16 More about this Journal
Abstract
Currently, Induction welding is attracting attention as a non-contact, clean and fast welding process. However, since thermoplastic resins are not affected by electromagnetic fields, induction welding requires a heating element called a susceptor. Researches are being conducted with the aim of achieving high-quality bonding, however, the factor of a heating element is an issue, hence the need to set a standard. Specimen fabrication and testing are conducted according to ASTM D5868. In this study, we propose that the evaluation criteria be judged on the basis of three factors; the condition of the welded joint surface, void content, and lap shear strength. Since the adhesive surface to be welded melts and solidifies as it cools, rapid temperature changes can generate pores. In addition, if the heating is not uniform, it is difficult to expect the desire performance. Using PA6 (CF 30%) thermoplastic, susceptor fabrication, induction welding and performance verification were conducted.
Keywords
Thermosetting; Thermoplastic; Induction welding; Susceptor; Lap shear strength; Void content; Tensile test;
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Times Cited By KSCI : 1  (Citation Analysis)
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