Paper Title:
EDM Properties of EC-PCD Using a Copper Electrode
  Abstract

Electrically conductive polycrystalline composite diamond (EC-PCD), which consists of electrically conductive diamond grits, has recently been developed for the purpose of providing the material with both excellent tool property and good machinability. This paper deals with an investigation of machinability of EC-PCD by EDM with a copper (Cu) electrode. As a result, it was found that the EDM speed (Material removal rate) for EC-PCD was higher than that of the standard PCD. Although the surface roughness of the standard PCD was 13µm Rzjis at set current ip=3A, the surface roughness of the EC-PCD was 5µm Rzjis at the same current condition. Furthermore, it was observed that the EC diamond particle in EC-PCD was machined by single discharge EDM. Moreover, it was confirmed that EC-PCD was able to be applied a fine discharge profiling or a making fine holes using a rotating electrode.

  Info
Periodical
Advanced Materials Research (Volumes 126-128)
Edited by
Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso
Pages
521-526
DOI
10.4028/www.scientific.net/AMR.126-128.521
Citation
S. Ninomiya, M. Iwai, G. Sugino, T. Takada, K. Suzuki, "EDM Properties of EC-PCD Using a Copper Electrode", Advanced Materials Research, Vols. 126-128, pp. 521-526, 2010
Online since
August 2010
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$32.00
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