Experimental investigation of the effect of EDM parameters and dielectric type on the surface integrity and topography
Document Type
Journal Article
Publication Title
The International Journal of Advanced Manufacturing Technology
Publisher
Springer
School
School of Engineering
RAS ID
36967
Abstract
The electrical discharge machining (EDM) process is mostly used in conditions that complex and intricate shapes need to be machined on very hard metals. However, the process leaves behind some undesirable properties such as high surface roughness, rough topography, high residual tensile stresses, micro-cracks, heat-affected zone (HAZ), and recast layer. This paper investigates the effects of different output parameters on the properties listed above. The input parameters studied include current, pulse-on time, and the type of dielectric; and the material being machined is AISI 1045 steel. Results show that the deionized water improved the output variables in EDM. The use of deionized water as the dielectric, not only improved the machined surfaces’ topography but also lowered the micro-cracks and HAZ thickness. The experiments also show how the pulse-on and current time affect the outcome of EDM machining of AISI 1045 steel.
DOI
10.1007/s00170-021-08040-z
Access Rights
subscription content
Comments
Rahimi, H., Masoudi, S., & Tolouei-Rad, M. (2022). Experimental investigation of the effect of EDM parameters and dielectric type on the surface integrity and topography. The International Journal of Advanced Manufacturing Technology, 118, p. 1767-1778.
https://doi.org/10.1007/s00170-021-08040-z