What is it about?

In this study, the effects of cutting parameters on the surface roughness in Wire Electrical Discharge Machining (WEDM) of Waspaloy have been investigated and optimal cutting parameters for lowest surface roughness values were determined. As control factors; wire tension, wire feed speed, feed rate and dielectric flushing pressure have been selected and a Taguchi L18 (21x33) orthogonal array was used for experimentation.

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Why is it important?

The statistical effects of cutting parameters on the surface roughness have been determined by using analysis of variance (ANOVA). The second order predictive equation has been developed via Linear Regression Analysis.


Using the second-order predictive surface roughness equation developed in the result of this study, the theoretical average surface roughness (Ra) values at a confidence level of 95 percent (R2=0.936) have been obtained. When evaluating the main effects plots and ANOVA results, the feed rate was found the most efficient factor on the Ra, while dielectric flushing pressure and wire speed were the following ranking factors. The wire tension was seemed to have not of a statistically influence on the Ra. The arithmetic average surface roughness Ra of the WEDM-cut workpiece has been obtained between 2.683 to 4.052 m intervals for Waspaloy.

Prof.Dr. Ali Riza Motorcu
Canakkale Onsekiz Mart Universitesi

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This page is a summary of: NİKEL ESASLI WASPALOY ALAŞIMININ TEL EROZYON YÖNTEMİYLE İŞLENMESİNDE TAGUCHİ METODU İLE YÜZEY PÜRÜZLÜLÜĞÜ İÇİN OPTİMUM KESME PARAMETRELERİNİN TAHMİNİ, Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, March 2017, Journal of the Faculty of Engineering and Architecture of Gazi University,
DOI: 10.17341/gazimmfd.300611.
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