Grinding wheel for roll grinding and method of roll grinding
AssigneeDiamond Innovations, Inc.
InventorsKris V. Kumar, Biju Varghese
Life of this patent
Estimating the term…
Abstract
A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; traversing the rotating grinding wheel across an axial roll length of the rotating roll surface; and grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a said mill roll rotational speed at an amplitude of +/−1 to 40% with a period of 1 to 30 seconds.
Claims23
A method of grinding a ferrous roll comprising:
- rotating a grinding wheel on a machine spindle to form a rotating grinding wheel;
- rotating a ferrous roll to form a rotating roll surface;
- wherein the angle between the grinding wheel rotational axis and ferrous roll rotational axis is less than about 25 degrees;
- bringing the rotating grinding wheel into contact with the rotating roll surface and
- traversing the rotating grinding wheel across an axial roll length of the rotating roll surface, while maintaining a ratio of axial taper tolerance (TT) to radial wheel wear compensation (WWC) of greater than 10;
- and
- grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a mill roll rotational speed at amplitude of +/−1 to 40% with a period of 1 to 30 seconds.
A method, comprising:
- rotating a grinding wheel to form a rotating grinding wheel, wherein the rotating grinding wheel comprises cubic boron nitride in a vitrified bond system;
- rotating a ferrous roll to form a rotating roll surface, wherein the angle between the grinding wheel rotational axis and ferrous roll rotational axis is less than about 25 degrees;
- contacting the rotating grinding wheel with the rotating roll surface and traversing the rotating grinding wheel across an axial roll length of the rotating roll surface while
- maintaining a ratio of axial taper tolerance (TT) to radial wheel wear compensation (WWC) of greater than 10;
- and
- grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a mill roll rotational speed at amplitude of +/−1 to 40% with a period of 1 to 30 seconds.
A method to suppress chatter in a roll grinding process, comprising:
- rotating a grinding wheel to form a rotating grinding wheel;
- rotating a ferrous roll to form a rotating roll surface, wherein the angle between the grinding wheel rotational axis and ferrous roll rotational axis is less than about 25 degrees;
- contacting the rotating grinding wheel with the rotating roll surface and traversing the rotating grinding wheel across an axial roll length of the rotating roll surface while
- maintaining a ratio of axial taper tolerance (TT) to radial wheel wear compensation (WWC) of greater than 10;
- and
- grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a mill roll rotational speed at amplitude of +/−1 to 40% with a period of 1 to 30 seconds.
Dependencies are inferred from the claim text.