A Computational Study of Pulse Power Source Based Electromagnetic Manufacturing Process

Kaushik, D and Thomas, MJ (2019) A Computational Study of Pulse Power Source Based Electromagnetic Manufacturing Process. In: 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019, 23 June 2019, United States.

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Abstract

Electromagnetic Manufacturing (EMMa) is one of the newer manufacturing techniques which is gaining popularity. It uses an intense transient magnetic field generated by a pulsed power source to apply a transient force on the work piece and deform it without any direct mechanical contact. For an optimal choice of the pulsed power parameters for EMMa, an understanding of the electromagnetic, mechanical, material and thermal phenomena associated with this type of manufacturing is imperative. A good understanding of the coupled effects of electromagnetic and mechanical forces and how they affect the material and thermal properties of the material is required to estimate the deformation taking place on the work piece. It requires numerical modelling of the forming process and applying suitable numerical models to predict the relevant physical phenomenon. EMMa system uses a coil to apply the required electromagnetic force on the work piece during the discharge of a capacitor bank. The coil design influences the distribution of the electromagnetic forces both on the work-piece as well as the coil. The pulsed current flowing through the coil also results in significant amount of heat being generated in the coil. The challenging feature of the numerical modelling of the deformation process and its effect on the coil is solving a highly coupled system of partial differential equations. Therefore, in the present work, a numerical technique has been developed to model the EMMa process and to simulate the transient effects of the pulsed magnetic field on the work-piece and coil. Specific attention is given to the study of important process parameters, and effect of their mutual interaction.

Item Type:	Conference Paper
Publication:	IEEE International Pulsed Power Conference
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	cited By 0; Conference of 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 ; Conference Date: 23 June 2019 Through 29 June 2019; Conference Code:158155
Keywords:	Computational electromagnetics; Deformation; Electric discharges; Magnetic field effects; Magnetic materials; Manufacture; Numerical models; Plasma diagnostics, Computational studies; Coupled analysis; Electromagnetic forces; Manufacturing techniques; Process parameters; Pulsed magnetic fields; Pulsed-power; Transient magnetic fields, Transients
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	19 Aug 2020 06:48
Last Modified:	19 Aug 2020 06:48
URI:	http://eprints.iisc.ac.in/id/eprint/65013

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