Feasibility study of through hole fabrication on aluminium nitride ceramic using die-sinking electro-discharge machining

Asif Rashid, M. P. Jahan, D. Talamona, A. Perveen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A series of experiments were carried out to machine aluminium nitride (AIN) ceramic by die-sinking electro-discharge machining (EDM) process. EDM is a non-conventional machining process that requires the workpiece to be electrically conductive. An assisted-electrode method is used to make the surface of the workpiece conductive enough to machine. A combination of graphene paste, carbon nanotube, and copper tape has been used to make the coating surface. Tungsten carbide tool has been used. The findings indicate that, for low pulse energy, it is possible to generate through holes in this process. A combination of low peak current and high gap voltage proved to be successful in this method. The surface of the machined hole reveals that thermal spalling is present as material removal mechanism, which results in a rough surface. The energy dispersive spectroscopy (EDS) analysis proves that carbon deposition occurs in the wall of the holes to promote successful machining. Copper is also present in the machined surface. A feasible process has been developed to machine AIN ceramics using EDM process.

Original languageEnglish
Title of host publicationAdvances in Manufacturing Engineering - Selected Articles from ICMMPE 2019
EditorsSeyed Sattar Emamian, Farazila Yusof, Mokhtar Awang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages531-537
Number of pages7
ISBN (Print)9789811557521
DOIs
Publication statusPublished - 2020
Event5th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2019 - Kuala Lumpur, Malaysia
Duration: Nov 19 2019Nov 21 2019

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference5th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2019
CountryMalaysia
CityKuala Lumpur
Period11/19/1911/21/19

Keywords

  • Carbon nanotube
  • Ceramics
  • Coating
  • Die-Sinking EDM
  • Pulse energy
  • Through hole

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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