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Power Ultrasonics by Karl F. Graff, Juan A. Gallego-Juarez

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14

Ultrasonic metal forming

materials

K.F. Graff    EWI, Columbus, OH, USA

Abstract

Metal forming is a primary manufacturing process that includes drawing, forging, rolling, and bending. Ultrasonic metal forming is the application of ultrasonic vibrations to these processes to enhance performance through increased production speeds, less tool wear, reduced forming forces, and better surface finish. The field was initiated with a 1955 note by Blaha and Langenecker that reported reduced yield stress with application of ultrasound, resulting in lines of development active to the present day. Ultrasonic forming depends on the effects of vibrations on both the volume and surface of the metal being formed. This chapter reviews these effects on ...

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