Title: Iterative learning control of the electrical discharge machining process

Authors: Ivan Furlan; Silvano Balemi

Addresses: Laboratory for Mechatronic Systems (SMT), University of Applied Sciences of Southern Switzerland (SUPSI), 6928 Lugano-Manno, Switzerland. ' Laboratory for Mechatronic Systems (SMT), University of Applied Sciences of Southern Switzerland (SUPSI), 6928 Lugano-Manno, Switzerland

Abstract: This paper presents a new method for the control of the gap distance between the electrode and the work-piece in electrical discharge machines. The method exploits the cyclic behaviour of electrical discharge machining and makes use of an iterative learning control approach with an additional adaptation of the initial point of iteration. The result is a gap behaviour less sensitive with respect to the typical strong stochastic noise, which affects the electrical discharge machining process.

Keywords: electrical discharge machining; EDM; electro-discharge machining; iterative learning control; ILC; noise rejection; gap distance.

DOI: 10.1504/IJMMS.2012.046525

International Journal of Mechatronics and Manufacturing Systems, 2012 Vol.5 No.2, pp.135 - 153

Received: 07 Jan 2011
Accepted: 09 Dec 2011
Published online: 20 Aug 2014 *

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