Study on shaping spherical Poly Crystalline Diamond tool by Micro-electro-Discharge Machining and micro-grinding with the tool

Takeshi Masaki, Tsunemoto Kuriyagawa, Jiwang Yan, Nobuhito Yoshihara

Research output: Contribution to journalArticle

17 Citations (Scopus)


Micro-electro-Discharge Machining (Micro-EDM) for shaping of a spherical tool made of Poly Crystalline Diamond (PCD) has been developed for the purpose of enabling a grinding process of a micro-free form surface on hard and brittle materials. Using this spherical PCD tool as a grinding tool, the surface roughness of a minute flat plane (90 x 70 gm), which was ground into tungsten carbide, has 28 nm Rz and 5 nm Ra. This paper describes the capabilities of spherical PCD tool grinding with the following results.

Original languageEnglish
Pages (from-to)344-359
Number of pages16
JournalInternational Journal of Surface Science and Engineering
Issue number4
Publication statusPublished - 2007 Jan 1
Externally publishedYes



  • Micro-EDM
  • Microelectro-Discharge Machining
  • PCD
  • Poly Crystalline Diamond
  • microgrinding
  • micromachining

ASJC Scopus subject areas

  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this