Title

Experimental investigation of the effect of EDM parameters and dielectric type on the surface integrity and topography

Author Identifier

Majid Tolouei Rad

ORCID : 0000-0002-9920-0808

Document Type

Journal Article

Publication Title

The International Journal of Advanced Manufacturing Technology

Publisher

Springer

School

School of Engineering

RAS ID

36967

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

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

Research Themes

Natural and Built Environments

Priority Areas

Engineering, technology and nanotechnology

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