Abstract
Brittle materials are difficult to mechanically micro machine due to damage resulting from material removal by brittle fracture, cutting force-induced tool deflection or breakage and tool wear. This paper demonstrates the feasibility of micro machining glass materials with polycrystalline diamond (PCD) micro tools that are prepared in a variety of shapes using non-contact micro electro discharge machining. The PCD tools contain randomly distributed sharp protrusions of diamond with dimensions around l μm that serve as cutting edges for micro machining grooves in soda-lime glass and pockets in ultra-low expansion glass. Results indicate that smooth surfaces are obtained with process conditions allowing material removal by ductile regime cutting instead of brittle fractures, and the PCD tools show very little wear. With further improvements in material removal rate, micro machining with PCD tools is a promising approach for producing micro molds and micro fluidic devices in glass materials.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1687-1692 |
| Number of pages | 6 |
| Journal | Journal of Micromechanics and Microengineering |
| Volume | 14 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 1 2004 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering
Cite this
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Micro machining glass with poly crystalline diamond tools shaped by micro electro discharge machining. / Morgan, Chris J.; Vallance, R. Ryan; Marsh, Eric Russell.
In: Journal of Micromechanics and Microengineering, Vol. 14, No. 12, 01.12.2004, p. 1687-1692.Research output: Contribution to journal › Article
TY - JOUR
T1 - Micro machining glass with poly crystalline diamond tools shaped by micro electro discharge machining
AU - Morgan, Chris J.
AU - Vallance, R. Ryan
AU - Marsh, Eric Russell
PY - 2004/12/1
Y1 - 2004/12/1
N2 - Brittle materials are difficult to mechanically micro machine due to damage resulting from material removal by brittle fracture, cutting force-induced tool deflection or breakage and tool wear. This paper demonstrates the feasibility of micro machining glass materials with polycrystalline diamond (PCD) micro tools that are prepared in a variety of shapes using non-contact micro electro discharge machining. The PCD tools contain randomly distributed sharp protrusions of diamond with dimensions around l μm that serve as cutting edges for micro machining grooves in soda-lime glass and pockets in ultra-low expansion glass. Results indicate that smooth surfaces are obtained with process conditions allowing material removal by ductile regime cutting instead of brittle fractures, and the PCD tools show very little wear. With further improvements in material removal rate, micro machining with PCD tools is a promising approach for producing micro molds and micro fluidic devices in glass materials.
AB - Brittle materials are difficult to mechanically micro machine due to damage resulting from material removal by brittle fracture, cutting force-induced tool deflection or breakage and tool wear. This paper demonstrates the feasibility of micro machining glass materials with polycrystalline diamond (PCD) micro tools that are prepared in a variety of shapes using non-contact micro electro discharge machining. The PCD tools contain randomly distributed sharp protrusions of diamond with dimensions around l μm that serve as cutting edges for micro machining grooves in soda-lime glass and pockets in ultra-low expansion glass. Results indicate that smooth surfaces are obtained with process conditions allowing material removal by ductile regime cutting instead of brittle fractures, and the PCD tools show very little wear. With further improvements in material removal rate, micro machining with PCD tools is a promising approach for producing micro molds and micro fluidic devices in glass materials.
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UR - http://www.scopus.com/inward/citedby.url?scp=10844272541&partnerID=8YFLogxK
U2 - 10.1088/0960-1317/14/12/013
DO - 10.1088/0960-1317/14/12/013
M3 - Article
VL - 14
SP - 1687
EP - 1692
JO - Journal of Micromechanics and Microengineering
JF - Journal of Micromechanics and Microengineering
SN - 0960-1317
IS - 12
ER -