Vitrified bond CBN Grinding wheel for camshaft

Vitrified bond CBN Grinding wheel for camshaft
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Vitrified Bond CBN Grinding Wheel

Vitrified CBN grinding wheels have been successfully implemented into numerous production applications at large global automotive manufacturers for engine applications like camshaft and crankshaft grinding; transmission applications such as gear and shaft grinding. And in the Aerospace industry for precision grinding of turbine engine blades and OD grinding of flame sprayed carbide components.

The Grain Size Selection of Vitrified CBN grinding wheel

The grain size is usually decided according to the requirements of the work-piece's surface roughness and processing efficiency. Furthermore, the affect of bond force and grinding mode(e.g. surface grinding , end grinding, cylindrical grinding, internal grinding etc.) should also be taken into account.

The relations between the grain size and the surface roughness of work-pieces are shown in the following table

The recommended grain sizes for different grinding processes are shown in the following table.

Grain Size range: usually select grain size of 100/120----200/230 for Vitrified bonded.

The requirements to the grinding machine

The requirements of the vitrified CBN grinding wheel to the grinding machine is very high. The grinding machine should posses high stiffnes, perfect aseismatic performance and thermal stability. And its principle axis should posses high accuracy , high rotating speed, axial displacement less than 3 μm and radial runout less than 5 μm . The feeding amount should be even and accurate, and the minium feeding amount less than 2 μm /time.