Ultrasonic welding of medical plastics

H.J. Yeh,     Amgen Inc., USA


A technical review of ultrasonic welding for medical plastics is presented in this chapter. The fundamentals of the ultrasonic-heating mechanism are explained followed by a description of the ultrasonic-welding process and process parameters. Key factors affecting the welding process and weld quality are discussed based on practical industrial applications. Selection of medical plastics and impacts of material structure for ultrasonic-welding applications are covered under the weldability discussion. Principles for joint designs and horn designs for ultrasonic-welding applications are explained. The chapter also discusses some approaches for the ultrasonic-welding ...

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