Surface analysis of magnesium alloy processed using C-EDM and PM-EDM method

  • Muhammad Al Hapis Abdul Razak*
  • , Ahmad Majdi Abdul-Rani
  • , Iqtidar Ahmed Gul
  • , Elhuseini Garba
  • , Syed Shehzeb Abdullah
  • , Anas Ahmed
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Magnesium alloy is considered as difficult-to-machine material due to low melting point which is 650°C and this metal is only stable below its melting point. The spark erosion process is an alternative machining method to process magnesium alloy. However, conventional electro-discharge machining (C-EDM) suffers of inconsistent machined surface quality. The powder mixed electro-discharge machining (PM-EDM) method may lead to improve machined part surface finish. The objective of this chapter is to analyze the surface quality of magnesium alloy processed using C-EDM and PM-EDM method. It is hypothesized that the surface quality of magnesium alloy processed using PM-EDM method will be smoother than C-EDM method. In C-EDM experiments, the factors involve peak current (38, 47, and 55 A), gap voltage (80, 220, and 320 V), pulse on-time (16, 32, and 64 μs), and pulse off-time (128, 256, and 512 μs). In PM-EDM experiments, the factors involve zinc powder concentration (1, 2, and 3 g/l), peak current (38, 47, and 55 A), pulse on-time (16, 32, and 64 μs), and pulse off-time (128, 256, and 512 μs). The lowest surface roughness obtained from C-EDM experiment was 5.926 μm and the lowest surface roughness obtained from PM-EDM experiment was 4.873 μm. Smoother machined surface was obtained from PM-EDM method.

Original languageEnglish
Title of host publicationConventional and Powder Mixed Electro-Discharge Machining
Subtitle of host publicationBiomedical Applications
PublisherCRC Press
Pages83-99
Number of pages17
ISBN (Electronic)9781040104620
ISBN (Print)9781032452760
DOIs
StatePublished - 2 Sep 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2025 selection and editorial matter, Ahmad Majdi Abdul-Rani, Masdi Muhammad, T V V L N Rao, Saeed Rubaiee, Anas Ahmed, and Mohd Danish. All rights reserved.

ASJC Scopus subject areas

  • General Engineering
  • General Biochemistry, Genetics and Molecular Biology
  • General Materials Science
  • General Environmental Science

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