Effect of Complex Electrodischarge Grinding for Electrically Conductive PCD

Abstract:

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Polycrystalline Composite Diamond (PCD) is excellent in chipping resistance despite its very high hardness. However, it is not easy to EDM or grind PCD. To realize high efficiency and high quality processing of PCD simply and at low cost, the authors devised new PCD (EC-PCD) by using electrically conductive diamond particles and applied a complex electrodischarge grinding method. In this study, investigation is made on effective grinding condition to realize high efficiency, low and stable grinding force and low wheel wear in complex electrodischarge grinding. As a result, superior grinding property was obtained when the grinding wheel was set at minus polarity, and set peak current of iP = 4 and 6 A was applied. Furthermore it also became clear that additional conventional grinding process followed after complex electrodischarge grinding improved the surface condition.

Info:

Periodical:

Edited by:

Taghi Tawakoli

Pages:

276-281

DOI:

10.4028/www.scientific.net/AMR.325.276

Citation:

M. Iwai et al., "Effect of Complex Electrodischarge Grinding for Electrically Conductive PCD", Advanced Materials Research, Vol. 325, pp. 276-281, 2011

Online since:

August 2011

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Price:

$35.00

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