IMPROVING SURFACE ROUGHNESS BY ELECTRICAL DISCHARGE MACHINING WITH TUNGSTEN POWDER

Authors

  • Vantao Le Hanoi University of Science and Technology, Le Quy Don Technical University
  • Tienlong Banh Hanoi University of Science and Technology
  • Xuanthai Tran Hanoi University of Science and Technology
  • Thi Hong Minh Nguyen Hanoi University of Science and Technology

DOI:

https://doi.org/10.11113/aej.v9.15507

Abstract

Electrical discharge machining (EDM) process is widely used to process hard materials in the industry. The process of electrical discharge is changed and called PMEDM when alloy powder is added in the oil dielectric. Studies show that the surface roughness (Ra) obtained by PMEDM is generally better than that by normal EDM. In the current study, the effect of tungsten carbide alloy powder added to the dielectric on the surface roughness status of the workpiece SKD61 after machining is investigated. The experiment shows that at the selected process window, adding the powder has resulted in an improvement of the surface roughness up to 57.98% as compared to the high surface roughness Ra of 0.471 μm by normal EDM.

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Published

2019-06-01

Issue

Vol. 9 No. 1 (2019): June 2019

Section

Mechanical and Manufacturing Engineering

How to Cite

IMPROVING SURFACE ROUGHNESS BY ELECTRICAL DISCHARGE MACHINING WITH TUNGSTEN POWDER. (2019). ASEAN Engineering Journal, 9(1), 44-53. https://doi.org/10.11113/aej.v9.15507