Interdiffusion analysis based on novel ultrasonic welding method with inserting interposed sheet

Authors

  • Guohong Zhang,

    1. Department of Machine Intelligence and Systems Engineering, Faculty of Systems Engineering, Akita Prefectural University, Akita 015-0055, Japan
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  • Jianhui Qiu

    Corresponding author
    1. Department of Machine Intelligence and Systems Engineering, Faculty of Systems Engineering, Akita Prefectural University, Akita 015-0055, Japan
    • Department of Machine Intelligence and Systems Engineering, Faculty of Systems Engineering, Akita Prefectural University, Akita 015-0055, Japan
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Abstract

The molecular movement process has been developed according to previous study on the novel ultrasonic welding method of inserting interposed sheet and its apparatus. Based on the classical reptation theory, a hauling theory of interdiffusion has been proposed which can accelerate molecular movement and interpenetration surprisingly. Hauling effect can promote the interdiffusion but has no effect on the interpenetration length. We involve a coefficient ku to modify the relationship between the reptation time before and diffusion time, which can be related to the relative displacement and friction coefficient among the molecular in terms of the equations. The surface roughness, welding time, and welding force have been experimented and resulted uniformly in which the diffusion has been accelerated from our experiments. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers

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