WHITE-LAYER THICKNESS ON EDM-PROCESSED AISI A2 STEEL – MATHEMATICAL MODELING AND ANALYSIS

  • Dinesh Kumar Institute of Technology Gopeshwar
  • Krishan Kant Singh Mer Institute of Technology, Gopeshwar, Uttarakhand, India, 246424
  • Hoshiyar Singh Payal Department of Mechanical Engineering, SRHU Dehradun, Uttarakhand, India, 248001
  • Kapil Kumar Department of Mechanical Engineering, THDC – Institute of Hydropower Engineering & Technology, Tehri-Garhwal, Uttarakhand, India, 249001
Keywords: electrical discharge machining, mathematical model, numerical simulation, response-surface methodology, white layer

Abstract

Electrical discharge machining is an electro-thermal technique where the recast layer on a machined surface and the heat-affected zone (HAZ) immediately below the machined surface are prevalent. As a result, assessing the white layer (recast layer) in EDM is a critical task. In this research, a response-surface methodology-based comprehensive mathematical model was developed to predict the white-layer thickness (WLT) on electrical discharge machine-processed AISI A2 steel. Also, the effects of various process parameters on the WLT were presented, the optimum combination of process variables was assessed and the minimum WLT was achieved by combining low-peak current and pulse-on time with high pulse-off time.

Author Biographies

Krishan Kant Singh Mer, Institute of Technology, Gopeshwar, Uttarakhand, India, 246424

Professor and Director, Institute of Technology, Gopeshwar, Uttarakhand, India, 246424

Hoshiyar Singh Payal, Department of Mechanical Engineering, SRHU Dehradun, Uttarakhand, India, 248001

Professor & Head,

Department of Mechanical Engineering, SRHU Dehradun, Uttarakhand, India, 248001

Kapil Kumar, Department of Mechanical Engineering, THDC – Institute of Hydropower Engineering & Technology, Tehri-Garhwal, Uttarakhand, India, 249001

Assistant Professor

Department of Mechanical Engineering, THDC – Institute of Hydropower Engineering & Technology, Tehri-Garhwal, Uttarakhand, India, 249001

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Published
2022-04-06
How to Cite
1.
Kumar D, Mer KKS, PayalHS, Kumar K. WHITE-LAYER THICKNESS ON EDM-PROCESSED AISI A2 STEEL – MATHEMATICAL MODELING AND ANALYSIS. MatTech [Internet]. 2022Apr.6 [cited 2022Jun.27];56(2):97–106. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/353