Toward freeform machining by micro electro discharge machining process

Murali M. Sundaram, Kamlakar P. Rajurkar

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

8 Citations (Scopus)

Abstract

This paper addresses the issues involved in the successful application of micro EDM for micro freeform machining. Types of Micro EDM tool wear and strategies required to reduce the inaccuracy caused by tool wear are explained. Experimental investigation of the various factors affecting the tool tip geometry and spark gap was carried out and results are presented. It is realized that a flat tool tip can be retained when a higher tool electrode size with lower depth of cut was used. When the depth of cut is equal to the tool diameter, spherical tool tip is obtained. Higher depth of cut yields conically shaped tool tip. Lower discharge energy and depth of cut minimizes the spark gap. As a step towards freeform machining, a complex micro structure having flat, spherical and tapered surfaces was machined by micro EDM using uniform tool shape method. It was found that resulting dimensions are within 10 μm deviation from the design specification.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36
Pages381-388
Number of pages8
StatePublished - Sep 29 2008
EventTransactions of the North American Manufacturing Research Institution of SME - Monterrey, Mexico
Duration: May 20 2008May 23 2008

Publication series

NameTransactions of the North American Manufacturing Research Institution of SME
Volume36
ISSN (Print)1047-3025

Conference

ConferenceTransactions of the North American Manufacturing Research Institution of SME
CountryMexico
CityMonterrey
Period5/20/085/23/08

Fingerprint

Electric discharge machining
Machining
Electric sparks
Wear of materials
Specifications
Microstructure
Electrodes
Geometry

Keywords

  • Freeform machining
  • Micro EDM
  • Micromachining

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Sundaram, M. M., & Rajurkar, K. P. (2008). Toward freeform machining by micro electro discharge machining process. In Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36 (pp. 381-388). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 36).

Toward freeform machining by micro electro discharge machining process. / Sundaram, Murali M.; Rajurkar, Kamlakar P.

Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. 2008. p. 381-388 (Transactions of the North American Manufacturing Research Institution of SME; Vol. 36).

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

Sundaram, MM & Rajurkar, KP 2008, Toward freeform machining by micro electro discharge machining process. in Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. Transactions of the North American Manufacturing Research Institution of SME, vol. 36, pp. 381-388, Transactions of the North American Manufacturing Research Institution of SME, Monterrey, Mexico, 5/20/08.
Sundaram MM, Rajurkar KP. Toward freeform machining by micro electro discharge machining process. In Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. 2008. p. 381-388. (Transactions of the North American Manufacturing Research Institution of SME).
Sundaram, Murali M. ; Rajurkar, Kamlakar P. / Toward freeform machining by micro electro discharge machining process. Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. 2008. pp. 381-388 (Transactions of the North American Manufacturing Research Institution of SME).
@inproceedings{797e5987222c402f800766dff2d41bc1,
title = "Toward freeform machining by micro electro discharge machining process",
abstract = "This paper addresses the issues involved in the successful application of micro EDM for micro freeform machining. Types of Micro EDM tool wear and strategies required to reduce the inaccuracy caused by tool wear are explained. Experimental investigation of the various factors affecting the tool tip geometry and spark gap was carried out and results are presented. It is realized that a flat tool tip can be retained when a higher tool electrode size with lower depth of cut was used. When the depth of cut is equal to the tool diameter, spherical tool tip is obtained. Higher depth of cut yields conically shaped tool tip. Lower discharge energy and depth of cut minimizes the spark gap. As a step towards freeform machining, a complex micro structure having flat, spherical and tapered surfaces was machined by micro EDM using uniform tool shape method. It was found that resulting dimensions are within 10 μm deviation from the design specification.",
keywords = "Freeform machining, Micro EDM, Micromachining",
author = "Sundaram, {Murali M.} and Rajurkar, {Kamlakar P.}",
year = "2008",
month = "9",
day = "29",
language = "English (US)",
isbn = "0872638618",
series = "Transactions of the North American Manufacturing Research Institution of SME",
pages = "381--388",
booktitle = "Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36",

}

TY - GEN

T1 - Toward freeform machining by micro electro discharge machining process

AU - Sundaram, Murali M.

AU - Rajurkar, Kamlakar P.

PY - 2008/9/29

Y1 - 2008/9/29

N2 - This paper addresses the issues involved in the successful application of micro EDM for micro freeform machining. Types of Micro EDM tool wear and strategies required to reduce the inaccuracy caused by tool wear are explained. Experimental investigation of the various factors affecting the tool tip geometry and spark gap was carried out and results are presented. It is realized that a flat tool tip can be retained when a higher tool electrode size with lower depth of cut was used. When the depth of cut is equal to the tool diameter, spherical tool tip is obtained. Higher depth of cut yields conically shaped tool tip. Lower discharge energy and depth of cut minimizes the spark gap. As a step towards freeform machining, a complex micro structure having flat, spherical and tapered surfaces was machined by micro EDM using uniform tool shape method. It was found that resulting dimensions are within 10 μm deviation from the design specification.

AB - This paper addresses the issues involved in the successful application of micro EDM for micro freeform machining. Types of Micro EDM tool wear and strategies required to reduce the inaccuracy caused by tool wear are explained. Experimental investigation of the various factors affecting the tool tip geometry and spark gap was carried out and results are presented. It is realized that a flat tool tip can be retained when a higher tool electrode size with lower depth of cut was used. When the depth of cut is equal to the tool diameter, spherical tool tip is obtained. Higher depth of cut yields conically shaped tool tip. Lower discharge energy and depth of cut minimizes the spark gap. As a step towards freeform machining, a complex micro structure having flat, spherical and tapered surfaces was machined by micro EDM using uniform tool shape method. It was found that resulting dimensions are within 10 μm deviation from the design specification.

KW - Freeform machining

KW - Micro EDM

KW - Micromachining

UR - http://www.scopus.com/inward/record.url?scp=52349102799&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=52349102799&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:52349102799

SN - 0872638618

SN - 9780872638617

T3 - Transactions of the North American Manufacturing Research Institution of SME

SP - 381

EP - 388

BT - Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36

ER -