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Product Description |
Diamond film is synthesized through CVD(Chermical Vapor Deposition) by activating hydrogen and methane gas at high temperature above 2000 with heated cathod.
Unlike PCD, this is composed of 100% diamond crystals. It has indistinguishable characteristics to a natural diamond
Excellent uniformity
Thinkness deviation less than 10%
Crystallinity deviation negligible
Grain size deviation negligible
Excellent properties of wafer
Pure diamond structure
Thermal conductivity : Over 10~12W/cmk
Mechanical Intergrity
Low bow
Crack-free |
| Specification |
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PCBN |
PCD |
CVD |
| Work-pieces |
Ferrous metals |
Non-ferrous metals |
Non-ferrous metals |
| Roughness |
Good |
Very good |
Coated tools |
Good |
| Thick fllm |
Excellent |
| Manufacturing process |
Sintering |
Sintering |
CVD method |
| Tool life |
Good |
Very good |
Excellent | |
| Applications |
Silicon aluminum alloys
Metal matrix composites(ceramic alminum alloys)
Carbon fber reinforced platice
Tungsten carbide
Platinum
High temperature plasstics
Glass reinforced epoxy | |
| Features and benefits |
Harder, more wear resistant
3 to 4x PCD life
Pure diamond, no binders
no chemical interaction or edge erosion
Higher thermal conductivty
lower cutting temperature
reduced spindle power
Maintains sharper edge than PCD
smoother and more consistent finish | |
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| Product Graph |
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| 400% Increase in toollife using CVD |
| JUNSAN CVD DIAMOND(JVD) insert tip consists of a cutting edge of pure diamond with no binder. JVD insert can provide a wear life 3 to 4x that of PCD, and maintain edge sharpness longer. Absence of binder avoids chemical interaction with coolant or workpiece material, eliminating premature faliure due to edge erosion. The high thermal conductivity of pure diamond dissipates heat in the cutting zone to maintain lower cutting temperatures. In addition, the reduced cutting force of diamond lessens spindle power. |
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