Micro electro discharge machining by uniform tool shape Method - Study of relative wear

Murali M. Sundaram, Kamlakar P. Rajurkar

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

7 Scopus citations

Abstract

Tool wear in micro electro discharge machining (micro EDM) is much higher than the conventional EDM. This paper classifies the types of Micro EDM tool wear and reviews the existing tool wear compensation techniques. Limitations of existing methods are discussed and an alternate approach of micromachining using uniform tool shape is proposed. The steps involved in the new approach are outlined. Study of relative wear is identified as the first part in understanding and implementing the proposed approach. Experimental investigation of the various factors affecting the relative wear was carried out and the preliminary results are presented. It is realized that the relative wear decreases with increase in discharge energy. For a given discharge energy it is observed that relative wear decreases with an increase in capacitance of the discharge circuit and increase in electrode size and during the machining of material with lower thermal conductivity. Creation of tool wear compensated part geometry, automated tool path generation and CAD/CAM integration have been planned in the second part of this study.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME 2007 - Papers Presented at NAMRC 35
Pages137-144
Number of pages8
StatePublished - 2007
Event35th North American Manufacturing Research Conference, NAMRC 35 - Ann Arbor, MI, United States
Duration: May 22 2007May 25 2007

Publication series

NameTransactions of the North American Manufacturing Research Institution of SME
Volume35
ISSN (Print)1047-3025

Conference

Conference35th North American Manufacturing Research Conference, NAMRC 35
CountryUnited States
CityAnn Arbor, MI
Period5/22/075/25/07

Keywords

  • EDM
  • Electrode wear
  • Micromachining

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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  • Cite this

    Sundaram, M. M., & Rajurkar, K. P. (2007). Micro electro discharge machining by uniform tool shape Method - Study of relative wear. In Transactions of the North American Manufacturing Research Institution of SME 2007 - Papers Presented at NAMRC 35 (pp. 137-144). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 35).