Vitrified Bond Diamond Wheels

Applications: Grinding of inserts, tools, saw blades, band saw
Materials: Tungsten Carbide, Cermet, Ceramics


Compared with resin bond wheels, vitrified bond ones have porosity which will facilitate chip clearance and coolant flow. The result would be lower grinding resistance and less grinding heat which will increase the fatigue strength of workpieces. With the heat-resistant feature of vitrified bond, the bond have higher holding strength and each grain can be fully utilized without the disadvantages of prematurely dislodging or dulling of resin bond wheels when presented under grinding heat. Therefore, vitrified bond wheels have excellent self-sharpening ability, and the goals of shortening cycle times, good surface finish, and cost reduction can be achieved.

Features

• Strong bond holding strength, 5 times longer wheel life
Vitrified bond have good holding strength and the wheel life can achieve 5 times of resin bond ones. Wheel changing is reduced and efficiency increased.
• Porosity facilitate the chip clearance and coolant flow
Promote lower grinding resistance and less grinding heat. Fatigue strength ofworkpieces is increased.
• Good cutting and self-sharpening abilities, high accuracy for workpiece size and shapes
The maintaining of cutting ability is stable, without the phenomena of prematurely dislodging and dulling. The sizes of workpieces are stable and high accuracy is assured.
• Versatile
Based on the above advantages, one grit size can be used for both rough and finish grinding. Grit size finer than resin bond can be used while achieving the same surface finish and 5 times wheel life.


Applications

• Tungsten carbide, cermet, ceramics: inserts, turning tools
• Tungsten carbide, cermet, ceramics: band saw, face/top/side grinding of circular saw blades



Application Example

Workpiece
Carbide-tipped circular saw blades
Parameters
position
rpm
wheel speed
m/s
infeed rate
mm/s
depth of cut
mm
Top
4200
27
6
0.3~1.5
Face
4200
44
6
0.1
Side
4000
25
2~6
0.15~0.2
Results
 Compared with resin bond wheels:
1.Lower grinding resistance
2.Less grinding heat
3.Shortening 30% cycle time
4.Better in size and shape accuracy
5.times longer wheel life


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