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TOOLING
TECHNOLOGY COMPARISON
Here
are some key points regarding machining of an aluminium part using
Polycrystalline Diamond (PCD), Chemical Vapour Deposition (CVD) and
Single Crystal Diamond (SCD).
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A PCD turning tool
could achieve a surface finish of between 1.30µm to 0.38µm.
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A CVD turning tool
could achieve a surface finish of 1.30µm to 0.20µm.
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A SCD turning tool
could achieve a surface finish of better than 0.1µm.
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With the PCD tool the
part would require polishing to achieve a bright finish.
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With the CVD tool the
part would require a lot less polishing time to achieve a bright
finish.
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With the SCD tool the
part would have a mirror finish without the need for polishing.
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A PCD tool could rough
cut the part.
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A CVD tool could rough
cut the part.
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A SCD tool is only
suitable for finishing cuts less than 0.5mm.
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A PCD grooving tool
would require the part to be de-burred after machining.
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A CVD grooving tool
would require the part to be de-burred after machining (but less
compared with PCD).
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A SCD grooving tool
would require no de-burring of the part.
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A PCD tool is
relatively cheaper to purchase than a CVD or SCD tool.
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A CVD tool is 2-3
times the cost of a PCD tool but came be run at higher cutting
feed rates and in some cases with no lubrication.
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A SCD tool is 4 times
the price of PCD but can reduce operating costs by removing
de-burring or polishing processes.
Therefore each different
diamond material has its place in machining materials.
For more independent information on diamond materials and their
properties why not visit the DeBeers web site.
Element Six
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CONTACT US
10 SHIELING COURT
NORTH FOLDS ROAD
OAKLEY HAY BUSINESS PARK
CORBY, NORTHAMPTONSHIRE
NN18 9QD
UNITED KINGDOM
TEL: (44) (0) 1536 461133
FAX: (44) (0) 1536 461144
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