Design and Optimization of Pulse Forming Networks for Electromagnetic Manufacturing Systems

Kaushik, D and Joy Thomas, M (2021) Design and Optimization of Pulse Forming Networks for Electromagnetic Manufacturing Systems. In: IEEE Pulsed Power Conference, PPC 2021, 12-16 December 2021.

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Abstract

Electromagnetic manufacturing systems utilize an intense transient electromagnetic current pulse generated from the discharge of a pulsed power source into the tooling coil (actuator coil). The most widely used pulsed power source is a series of capacitor banks. The magnetic field produced by the pulsed current induces a large current in the workpiece to generate very high electromagnetic pressure, which is then used to achieve the required objectives. The intensity of the electromagnetic pressure on the workpiece is entirely determined by the characteristics of the pulsed power system. This system, however, has very low efficiency due to poor magnetic coupling between the tooling coil and the workpiece.The induced current in the workpiece is a strong function of the current waveform in the tooling coil (actuator coil). The quality of deformation of the workpiece depends on the magnitude and spatial distribution of the electromagnetic pressure. Therefore, we need to optimize the pulse parameters to maximize the efficiency of the manufacturing process. It requires identifying important pulse parameters such as rise time, fall time, magnitude of the current etc., and relevant control variables to achieve the required deformation during the manufacturing process.In this paper we have analyzed the forming characteristics of the workpiece with respect to the temporal variation in the magnetic pressure being applied on the workpiece. The studies are performed for a free forming experiment using a uniform pressure tooling coil. © 2021 IEEE.

Item Type:	Conference Proceedings
Publication:	IEEE International Pulsed Power Conference
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:	Deformation; Efficiency; Electric discharges; Magnetic fields; Manufacture; Power quality; Transient analysis, 'current; Coupled analysis; Electromagnetic manufacturing; Electromagnetic pressure; Electromagnetics; Process parameters; Pulsed power sources; Pulsed-power; Transient magnetic fields; Workpiece, Actuators
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	19 May 2022 06:41
Last Modified:	19 May 2022 06:41
URI:	https://eprints.iisc.ac.in/id/eprint/71906

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