A comparative experimental study of machining characteristics in vibratory, rotary and vibro-rotary electro-discharge machining

M. Ghoreishi, J. Atkinson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper compares the effects of high- and low-frequency forced axial vibration of the electrode, rotation of the electrode, and combinations of these methods in respect of material removal rate (MRR), tool wear rate and surface roughness in die sinking electro-discharge machining (EDM) with a flat electrode (planing mode). The results of the combined states of rotation and vibration at high and low frequency (vibro-rotary EDM) are compared in order to establish which combinations are most appropriate to different machining regimes (finishing, semi-finishing and roughing). It is found that the combination of high-frequency vibration and rotation of the electrode is effective in attaining a high MRR at a specified surface roughness (Ra). This case is modelled by stepwise linear regression. The significant parameters are found by analysis of variance (ANOVA) and the optimum machining parameter settings are obtained using overlay contour plots. The advantages of vibration and rotation are seen to combine in this new process when employed for die sinking EDM with a flat electrode. © 2002 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)374-384
    Number of pages10
    JournalJournal of Materials Processing Technology
    Volume120
    Issue number1-3
    DOIs
    Publication statusPublished - 15 Jan 2002

    Keywords

    • ANOVA
    • Electro-discharge machining
    • Regression
    • Ultrasonic vibration

    Fingerprint

    Dive into the research topics of 'A comparative experimental study of machining characteristics in vibratory, rotary and vibro-rotary electro-discharge machining'. Together they form a unique fingerprint.

    Cite this