Abstract
Ultrasonic welding is one of the most popular methods for joining plastics and it is becoming an important method for welding polymeric composites. This chapter first describes the theory of ultrasonic welding including viscoelastic heating and the difference between near-field and far-field ultrasonic welding. The chapter then includes a process description of plunge and continuous ultrasonic welding. The chapter then discusses ultrasonic welding equipment including power supply and controller, stack, actuator, and fixture and a description of the different process control modes. Finally, the chapter discusses joint and part design and thermoplastic material weldability.
Published Version
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