Chapter 8 from the Welding Handbook, Ninth Edition, Volume 3, “Welding Processes, Part 2,” has been selected by the AWS Product Development Committee as a service to industry professionals. This chapter covers the fundamentals of ultrasonic welding and describes the equipment and operating techniques used in production. A separate section on ultrasonic microwelding is presented. Other topics are welding variables and procedures, weld quality, and applications. A section on the economics of ultrasonic welding is included. Safe practices specific to ultrasonic welding are discussed, and references are supplied for general information on safety in welding.
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