Investigating the Ultrasonic Assistance in the Tube Hydroforming Process

Zarei, Mehdi; Farzin, Mahmood; Mashayekhi, Mohammad

doi:10.22055/jacm.2017.21474.1102

Investigating the Ultrasonic Assistance in the Tube Hydroforming Process

Document Type : Research Paper

Authors

Mehdi Zarei ¹

Mahmood Farzin ²

Mohammad Mashayekhi ²

¹ Department of Mechanical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran

² Department of Mechanical Engineering, Isfahan University of Technology Isfahan 84156-83111

10.22055/jacm.2017.21474.1102

Abstract

The purpose of introducing ultrasonic vibrations in the tube hydroforming process is to create more formability by obtaining a lower corner radius, improve thickness distribution of the wall and provide good tribological conditions at the tube and the die interface. Vibrations imposed on the die create alternating gaps which improve the formability in the tube hydroforming process in the presence of ultrasonic vibrations. Therefore, we attempted to understand the processing mechanism of the ultrasonic tube hydroforming in the square die using the finite element method. Abaqus software was used in these simulations and the die was considered as a deformable element.

Keywords

tube hydroforming

ultrasonic oscillations

Finite element method

square die

Subjects

Plasticity and Visco-elasticity

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