Finite element modelling of electromagnetic forming of tractor muffler
by Sagar Pawar; Pravin Ghatule; Sachin D. Kore
Progress in Industrial Ecology, An International Journal (PIE), Vol. 11, No. 3, 2017

Abstract: Electromagnetic forming (EMF) is a non-contact, high-speed forming process in which electrically conductive workpiece is formed by applying a magnetic field. In this research work manufacturing of an automobile muffler used in exhaust system made out of an Aluminium alloy tube by EMF process has been studied. Finite element analysis (FEM) of process has been conducted with the help of EM module in LS-DYNA^TM. The difference in the deformation is observed because of the difference in the current density and thus, the Lorentz force. The tube area which comes in contact with die gets rebound back due to the excess kinetic energy of workpiece. For the minimum rebound and maximum die filling, suitable coil diameter and discharge voltage have been determined, and it was found that at 12 kV for 56.7 mm outer diameter coil, maximum die cavity got filled with minimum rebound.

Online publication date: Mon, 23-Apr-2018

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