Abstract
To fabricate three-dimensional microstructures, such as micro dimples, micro grooves and micro channels, on ceramic mold materials, tool fabrication with super hard materials is an essential step. In this work, micro electro discharge machining (EDM) was used to fabricate high-precision polycrystalline diamond end mills. Form accuracy and edge sharpness in one micron level were achieved by utilizing electro discharge induced graphitization of diamond grains under extremely low discharge energy conditions. The cutting performance of the fabricated tools was examined by machining micro dimples and micro grooves on tungsten carbide mold substrates. Results showed that using the EDMfabricated tools, ductile mode machining of tungsten carbide was realized with a surface finish of 2 nm Ra, which is comparable to that produced by polishing.
| Original language | English |
|---|---|
| Pages (from-to) | 99-106 |
| Number of pages | 8 |
| Journal | International Journal of Machine Tools and Manufacture |
| Volume | 65 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Electro discharge machining
- Micro cutting
- Micro end mill
- Mold fabrication
- Polycrystalline diamond
- Structured surface
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Mechanical Engineering
Cite this
Micro-cutting characteristics of EDM fabricated high-precision polycrystalline diamond tools. / Zhang, Zhiyu; Peng, Huanming; Yan, Jiwang.
In: International Journal of Machine Tools and Manufacture, Vol. 65, 2013, p. 99-106.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Micro-cutting characteristics of EDM fabricated high-precision polycrystalline diamond tools
AU - Zhang, Zhiyu
AU - Peng, Huanming
AU - Yan, Jiwang
PY - 2013
Y1 - 2013
N2 - To fabricate three-dimensional microstructures, such as micro dimples, micro grooves and micro channels, on ceramic mold materials, tool fabrication with super hard materials is an essential step. In this work, micro electro discharge machining (EDM) was used to fabricate high-precision polycrystalline diamond end mills. Form accuracy and edge sharpness in one micron level were achieved by utilizing electro discharge induced graphitization of diamond grains under extremely low discharge energy conditions. The cutting performance of the fabricated tools was examined by machining micro dimples and micro grooves on tungsten carbide mold substrates. Results showed that using the EDMfabricated tools, ductile mode machining of tungsten carbide was realized with a surface finish of 2 nm Ra, which is comparable to that produced by polishing.
AB - To fabricate three-dimensional microstructures, such as micro dimples, micro grooves and micro channels, on ceramic mold materials, tool fabrication with super hard materials is an essential step. In this work, micro electro discharge machining (EDM) was used to fabricate high-precision polycrystalline diamond end mills. Form accuracy and edge sharpness in one micron level were achieved by utilizing electro discharge induced graphitization of diamond grains under extremely low discharge energy conditions. The cutting performance of the fabricated tools was examined by machining micro dimples and micro grooves on tungsten carbide mold substrates. Results showed that using the EDMfabricated tools, ductile mode machining of tungsten carbide was realized with a surface finish of 2 nm Ra, which is comparable to that produced by polishing.
KW - Electro discharge machining
KW - Micro cutting
KW - Micro end mill
KW - Mold fabrication
KW - Polycrystalline diamond
KW - Structured surface
UR - http://www.scopus.com/inward/record.url?scp=84869870889&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869870889&partnerID=8YFLogxK
U2 - 10.1016/j.ijmachtools.2012.10.007
DO - 10.1016/j.ijmachtools.2012.10.007
M3 - Article
AN - SCOPUS:84869870889
VL - 65
SP - 99
EP - 106
JO - International Journal of Machine Tools and Manufacture
JF - International Journal of Machine Tools and Manufacture
SN - 0890-6955
ER -