Product Details

Diamond/CBN Electroplated tools

While Diamond and CBN wheels have an abrasive layer on its periphery which were sintered together with bond and abrasives, there are another type of tools that is electroplated tools which diamond and CBN powder are adhered strongly on the substrates by the unique electroplating method that Cryston's R & D staff developed. Compared with the conventional electroplating, our electroplated tools show remarkable performance with much longer life.

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Distinguishing feature of Cryston's Electroplated Tools

Improved Efficiency
As the tools have diamond or CBN abrasives which have sharp cutting edges retained firmly and uniformly in high density on the core steel, they are well made as tools and when used, they touch workpieces smoothly and show twice better performance than the conventional ones.
Cost Saving
They are easy to handle and very practical for manufacturing goods at small quantity of numerous kinds. They have longer tool life so they save production cost at great deal economically.
Labour Saving
Compared with metal bonded or resin bonded wheels, price is cheaper, and complicated forms can be made. While wear resistance and deformation are not generated so easily, for form grinding it shows excellent performance, and some process in forming are eliminated

Selection of grit size

Roughing　rougher than ＃120
Medium grinding　＃140 ～＃200
Finishing 　finer than ＃230

In general, electroplated wheels are, compared with metal bonded and resin bonded wheels, no. of cutting edges
are more, so in comparison with the same grit size, surface finish achieved by the electroplated tools are slighly rougher.
Please select the grit size to meet your work, along the above as yardstick.

Peripheral speed of electroplated tools

The peripheral speed of electroplated tools differs in workpieces and machining conditions and effects on grinding efficiency at great deal. Adequate wheel speed cannot be set easily but please consider below-mentioned speed as yardstick for your selection.

［Wheel］
Tungsten carbide	1000　～　1500 (m/min)
Glass	1500　～　1600
Ferrite	1500　～　1800
Shell	1500　～　2000
Hard rubber	3000　～　4000
F R P	4000　～　5000

［Internal wheel］
Tungsten carbide	100　～　1300 (以上)
Hardened steel	100　～　1300 (以上)

［Cutting wheel］
Tungsten carbide in green state	1000　～　2000
F R P	2000　～　2500
Shell	2000　～　2500

［Core drill］
Glass	100　～　 150
Shell	100　～　 400

Suggestion of handling Electroplated tools.

Since the tools have extremely good ability to grind, slight grinding is required. If the grinding pressure is more than it is required, the tool life will be shortened.
While dry grinding is possible, wet grinding will improve cutting quality and life.
Dressing is not particularly needed, but when the abrasive face is loaded or closed, wash or dress the face with brush or GC stick.
Please do not bend or deform the tool when you use.
While optimum wheel peripheral speed differs in workpiece and grinding condition, in general, the speed ranges from1,000～2,000m/min.（In case of a small mounted wheel, below 1,000m/min is normally applied.）
To avoid vibration, please set the tool free from vibration. Run out of the tool effects on precision level achieved and tool life.（In general, wheel run out should be kept below 0.02mm.）
The mounted wheels may generate severe vertical vibration due to combination of rotation no., protruding size, and run-out and may be bended or broken. To avoid danger, before using the tool
check out whether dirt and dust on chuck was removed,
whether the protruding size is kept as small as possible,
and whether vibration at mounting was set below 0.02mm.