Title: Finite element analysis of effect of process parameters on electromagnetic free expansion of aluminium tube

Authors: Chandrahas Patel; Pravin Ghatule; Sachin Dnyandeo Kore

Addresses: Mechanical Engineering Department, IIT Guwahati, India ' Mechanical Engineering Department, IIT Guwahati, India ' Mechanical Engineering Department, IIT Guwahati, India

Abstract: The paper focuses on the study of expansion velocity and effective plastic strain with numerical analysis of electromagnetic tube expansion. Effects of process parameters on EM free expansion of tube are discussed in detail. FEM results are obtained through 3D simulations with the help of EM module in LS-DYNATM in which finite element method (FEM) for conductor and boundary element method (BEM) for surrounding air is implemented. FEM and BEM results are obtained from simulation and compared with available experimental data in the published literature. Increase in capacitance to increase energy is not favourable for electromagnetic forming. Variation in voltage to increase energy is suitable for electromagnetic forming.

Keywords: electromagnetic forming; EMF; finite element analysis; FEA; process parameters; aluminium tubes; expansion velocity; plastic strain; tube expansion; simulation; boundary element method; BEM; capacitance increase; voltage variation.

DOI: 10.1504/IJMPT.2017.080567

International Journal of Materials and Product Technology, 2017 Vol.54 No.1/2/3, pp.165 - 178

Received: 15 Jul 2015
Accepted: 31 Oct 2015
Published online: 30 Nov 2016 *

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