Modelling Of Process Parameters in Coated Wire Electric Discharge Machining Through Response Surface Methodology. (2015)

• Record Type: Journal Article
• Authors: Thomas, Dain; Kumar, Rajeev; Singh, G.K.; Sinha, Prashant; Mishra, Sachin
• Is Part Of: Materials today. Volume 2:Number 4/5(2015)
• Page Start: 1642
• Page End: 1648
• Publication Date: 2015
• Subjects: WEDM -- Coated wire -- Tool steel EN31 -- Central composite Design -- Response Surface Methodology ;; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.07.091
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Electric Discharge Machining (EDM) has been used for machining of electrically conductive difficult materials. Wire EDM is a kind of EDM where a wire is used to act as the tool and due to erosion, machining takes place. Generally, Brass and Copper wires were effectively used for machining but it was found that the productivity and characteristics for coated wires had better results hence coated wires (zinc) will be used. The study has been conducted for the optimization and design of WEDM process performed on the Tool Steel EN31. The major performance characteristic that is evaluated is Material Removal Rate (MRR). The corresponding parameters acting as the input are Current, Pulse on Time and Pulse off Time, Wire Tension. The central composite design is utilized to plan the experiment and Response Surface Methodology is implied and an experimental model has been developed. Analysis on machining characteristic of coated WEDM is made based on the developed model. The model has been verified and checked for adequacy.