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Analysis of the electrical discharge machining (EDM) performance on Ramor 550 armor steel

  • Engin Nas
Published/Copyright: February 13, 2021
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Materials Testing
From the journal Materials Testing Volume 62 Issue 5

Abstract

This study investigated the electrical discharge machining (EDM) performance of Ramor 500 Armor steel, a material used in the defense industry for armor production. In addition, the surface quality and amount of material wear of the treated surfaces were determined using different electrical discharge processing parameters for a copper electrode including pulse on-time (99, 150, 225, 300, 351 μs), pulse off-time (10, 15, 23, 30, 35 μs), and discharge current (3, 4, 6, 8, 9 A), at a constant pressure of 1 mm depth of cut. As a result of the experiments, the values related to the material removal rate (MRR) and the surface roughness (Ra) were obtained and the findings analyzed via response surface methodology (RSM). The increase in amperage and pulse on time resulted in an increase in Ra and MRR values. The minimum and maximum Ra and MRR values emerged at currents of 3 and 9 A, respectively. In the experiments performed applying currents of between 3 and 9 A, the white layer widths were measured as 0.0474 mm and 0.0915 mm, respectively. The statistical test results showed that the most effective processing parameters for the MRR were the discharge current amperage (49.01 %) and the pulse off-time (16.51 %), whereas the most effective parameter for the Ra value was the discharge current amperage (79.07 %).

Keywords: Response surface methodology; electro discharge machining; surface roughness; material removal rate; armour
Published Online: 2021-02-13
Published in Print: 2020-05-01

© 2020 by Walter de Gruyter Berlin/Boston

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https://doi.org/10.3139/120.111510
Keywords for this article
Response surface methodology; electro discharge machining; surface roughness; material removal rate; armour

Articles in the same Issue

  1. Title
  2. CONTENTS
  3. Materials Testing
  4. FACHBEITRÄGE
  5. Identification parameters for accident reconstruction software at frontal car impact
  6. Effects of adding Ni and Co on microstructure and gamma prime phase stability in Ni superalloy Inconel 738 with 1 wt.-% Al
  7. Light-weight design of automobile suspension components using topology and shape optimization techniques
  8. Development of a bond graph model for electromechanical actuators
  9. Research on the fatigue resistance of weld ends
  10. Effects of sections added to multi-cell square tubes on crash performance
  11. Analysis of the electrical discharge machining (EDM) performance on Ramor 550 armor steel
  12. The equilibrium optimization algorithm and the response surface-based metamodel for optimal structural design of vehicle components
  13. The mine blast algorithm for the structural optimization of electrical vehicle components
  14. Microstructure, Mechanical and Corrosion Behavior of Additively Manufactured Steel: A Review (Part 1)
  15. Identification of the concrete damage degree based on the principal component analysis of acoustic emission signals and neural networks
  16. Multi-response optimization of AA 8011 and 12 wt.-% fly ash composites
  17. Effects of process parameters on the formability of sheet metal during plastic injection forming
  18. Mechanical and thermal properties of PVC and polyurethane foam hybrid composites
  19. BEZUGSQUELLEN
  20. BEZUGSQUELLEN
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