Patent ID: 8029338

Claim:
A method of grinding a ferrous roll having a rotating roll surface with a rotating grinding wheel, the ferrous roll having a hardness greater than 65 SHC and a minimum diameter of at least 10 inches and a length of at least 2 feet, the method comprising: a) mounting a grinding wheel on a machine spindle and setting an angle between the grinding wheel rotational axis and roll rotational axis less than about 25 degrees; b) bringing the rotating wheel into contact with the rotating roll surface and traversing the wheel across an axial roll length of the roll, while maintaining a ratio of axial taper tolerance (TT) to radial wheel wear compensation (WWC) of greater than 10; and c) grinding the roll surface to a surface roughness R a of less than 5 micrometer while leaving the roll surface substantially free of feed marks, chatter marks, and surface irregularities.