The effect of cutting parameters on workpiece surface roughness in wire EDM


Tosun N., Cogun C., Inan A.

MACHINING SCIENCE AND TECHNOLOGY, vol.7, no.2, pp.209-219, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 7 Issue: 2
  • Publication Date: 2003
  • Doi Number: 10.1081/mst-120022778
  • Journal Name: MACHINING SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.209-219
  • Keywords: wire EDM, surface roughness, ANOVA, DISCHARGE MACHINING PROCESS, OPTIMIZATION
  • Gazi University Affiliated: No

Abstract

In this study, the variation of workpiece surface roughness with varying pulse duration, open circuit voltage, wire speed and dielectric fluid pressure was experimentally investigated in Wire Electrical Discharge Machining (WEDM). Brass wire with 0.25 mm diameter and SAE 4140 steel with 10 mm thickness were used as tool and workpiece materials in the experiments, respectively. It is found experimentally that the increasing pulse duration, open circuit voltage and wire speed, increase the surface roughness whereas the increasing dielectric fluid pressure decreases the surface roughness. The variation of workpiece surface roughness with machining parameters is modelled by using a power function. The level of importance of the machining parameters on the workpiece surface roughness is determined by using analysis of variance (ANOVA).