Synthesis of Pulse Forming Systems for Electromagnetic Manufacturing Process

Kaushik, D and Thomas, MJ (2022) Synthesis of Pulse Forming Systems for Electromagnetic Manufacturing Process. In: 2022 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2022, 19-23 June 2022, Knoxville, pp. 137-140.

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Abstract

The magnetic pressure required in an electromagnetic manufacturing process is generated by the passage of pulsed current through a tooling coil. However, the pressures generated are normally much less than the tensile strength of the workpiece. Therefore, in certain applications the workpiece is made to impact the die to create large amount of working pressures. Therefore, the impact velocity of the workpiece is a critical parameter for the deformation process. In this paper, a novel method to control the impact velocity of the workpiece and systematically determine the pulsed power circuit parameters required to achieve the desired velocity before the impact has been discussed. A model force waveform on the workpiece is proposed which is used as a load curve to simulate the mechanical deformation in the workpiece. An analytical model of the tooling coil and workpiece is presented to calculate the force on the workpiece. Curve fitting methods along with unconstrained optimization techniques are used to find the optimized values of the model waveform. Finally, the results obtained using the analytical methods are compared against those obtained using Finite Element Methods techniques and are found to be in good agreement with each other. The validated model is useful to calculate the design parameters required for the synthesis of the pulsed power circuit. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Curve fitting; Optimization; Tensile strength, Electromagnetic manufacturing; Electromagnetics; Finite element analyse; Impact velocities; Manufacturing process; Power circuit; Pulsed-power; Tooling coil; Waveforms; Workpiece, Finite element method
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	14 Jun 2023 13:05
Last Modified:	14 Jun 2023 13:05
URI:	https://eprints.iisc.ac.in/id/eprint/81920

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