Review on modelling and optimization of electrical discharge machining process using modern Techniques

In recent years, the industrial product not only requires high precision and quality, but also should be produced in minimum time to sustain in the highly competitive market. Thus, it is required to achieve the desired output by regulating the process parameter as per the requirement. The input parameters plays important role in determining the surface quality and also the Material removal rate. Amongst the various machining processes Electrical Discharge Machining (EDM) is one of the most attractive alternatives for the industry due to its attractive attribute of not non-contact of tool and workpiece that leads to very little or no force exert in the tool and work piece. In the current study the thorough literature review of various modern machining processes is presented. The main focus is kept on the optimization aspects of various parameters of the EDM processes and hence only such research works are included in this work in which the use of advanced optimization techniques was involved. The review period considered is from the year 2006 to 2015. This review study has been classified according to different process as Die Sinking EDM, WEDM, PMEDM, Micro-Machining, and various hybrids and modified versions. The review work on such a large scale was not attempted earlier by considering many processes at a time, and hence, this review work may become the ready information at one place and it may be very useful for the subsequent researchers to decide their direction of research. (C) 2017 Elsevier Ltd. All rights reserved.