Electro discharge sintering (EDS) as a method of manufacturing diamond tools

David Egan, Seamus Melody

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper details the use of EDS to sinter diamond containing segments to high density and strength from standard iron powders using a split mould with insulating sides and conductive punches. Additional segments were made from iron powder and diamond manufactured in strip form and cut to shape. Circular saw blades were manufactured by brazing the segments to a blank, and these were tested against standard blades by cutting granite (class 3-4) on a bridge saw. The performance of the EDS segments in sawing tests was found to equal segments produced by conventional sintering methods. A Design of Experiment (DoE) study was undertaken to identify the most important parameters to achieve high quality sintering and also choose the best electrode material to achieve this. The use of EDS to sinter iron powder and diamond into a segment and attach to a blade in a single step is also introduced.

Original languageEnglish
Title of host publicationProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2008
PublisherEuropean Powder Metallurgy Association (EPMA)
Pages15-20
Number of pages6
ISBN (Print)9781899072033
Publication statusPublished - 2008
Externally publishedYes
EventEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2008 - Mannheim, Germany
Duration: 29 Sep 20081 Oct 2008

Publication series

NameProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2008
Volume3

Conference

ConferenceEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2008
Country/TerritoryGermany
CityMannheim
Period29/09/081/10/08

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