Method and apparatus for grinding
AssigneeROLLS-ROYCE plc
InventorsChristopher P R Hill, James R Watkins, Charles Ray
Life of this patent
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Abstract
The material removal rate of a creep-feed grinding operation may be increased significantly by use of a type of porous grinding wheel in combination with jet of coolant liquid at high pressure directed at the periphery of the wheel in advance of the cutting point. The apparatus for performing the method may comprise a multi-axis machining centre adapted to enable the coolant nozzle(s) to be retracted to provide working clearance for automatic tool changer operation and to re-position the aiming point of the nozzle(s) over an angular range relative to a cutting point.
Claims20
Apparatus for high speed grinding comprises a porous grinding wheel, a machine for mounting and rotating the grinding wheel at peripheral speeds up to about 80 metres per second, a high pressure coolant supply system including at least one nozzle means for directing a jet of coolant at high pressure at an aiming point on the periphery of the grinding wheel, the aiming point being at a position at least twenty degrees in advance of the machining point.
Apparatus for high speed grinding comprises a porous grinding wheel, a machine for mounting and rotating the grinding wheel at peripheral speeds up to about 80 metres per second, a high pressure coolant supply system including at least one nozzle means for directing a jet of coolant at high pressure at an aiming point on the periphery of the grinding wheel substantially in advance of the machining point such that the jet of coolant does not directly intersect the machining point.
Dependencies are inferred from the claim text.