2011 Fiscal Year Final Research Report
Precise EDM of cemented carbide die with electrically conductive PCD electrode
| Project/Area Number |
22760101
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Toyama Prefectural University |
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Principal Investigator |
IWAI Manabu 富山県立大学, 工学部知能デザイン工学科, 講師 (30363873)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 放電加工 / 精密加工 / 超硬合金 / 金型 / 電極 / ダイヤモンド焼結体 / 電極消耗 |
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| Research Abstract |
Electrically conductive PCD(EC-PCD), which was made up of the electrically conductive diamond particles, was applied to an electrode material for precise EDM of cemented carbide die. The machinability of EC-PCD by EDM was investigated in comparison with standard PCD. It was found that EC-PCD was machined at better surface finish compared that of standard PCD because the diamond particles in EC-PCD were flattened by electro discharge. In EDM of cemented carbide die, the EC-PCD electrode shows the extremely low wear compared with the existing Cu-W electrode. Furthermore, the increase of material removal rate and improvement of surface property compared with the standard electrode can be realized.
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