Material removal in WEDM of PCD blanks

Jerzy Kozak, Kamlakar P. Rajurkar, Shuang Z. Wang

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

2 Scopus citations


Polycrystalline Diamond (PCD) tools are now widely used in machining a large variety of advanced materials. However, the manufacture of PCD tool blanks is not an economical and efficient process. The shaping of PCD blanks with conventional machining methods (such as grinding), is a long, labor-intensive and costly process. Wire Electrical Discharge Machining (WEDM) promises to be an effective and economical technique for the production of tools from PCD blanks. However, a knowledge base for wire electrical discharge machining of PCD blanks needs comprehensive investigations into the proper parameter settings, metal removal mechanism, and surface integrity of machined blanks. This paper presents the results of experimental and theoretical investigations of the influence of discharge frequency and discharge energy on the material removal rate of WEDM of PCD blanks. The mechanism of removing diamond grains from the matrix during electrical erosion is also discussed on the basis of thermal stresses between the diamond grain and cobalt phase.

Original languageEnglish (US)
Title of host publicationManufacturing Science and Engineering
EditorsK.F. Ehmann
PublisherPubl by ASME
Number of pages11
ISBN (Print)0791810291
StatePublished - 1993
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
Duration: Nov 28 1993Dec 3 1993

Publication series

NameAmerican Society of Mechanical Engineers, Production Engineering Division (Publication) PED


OtherProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering


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