Method and apparatus for roll grinding

Abstract

In one aspect, a process for roll grinding employs a grinding wheel that is porous and permeable. In another aspect, a process for grinding mill rolls includes dressing the grinding wheel as the wheel traverses the surface of a mill roll. Other aspects relate to a system, e.g., a mill roll grinding machine, or parts thereof, in which a dressing tool contacts the wheel as the wheel grinds the surface of the mill roll. In specific examples, the wheel and a rotary dressing tool are maintained in contact as the wheel traverses the surface of the mill roll.

Description

[0001] related application [0002] This application claims the benefit under 35 USC 119(e) of US Provisional Application No. 61 / 179,518, filed May 19, 2009, which is hereby incorporated by reference in its entirety. Background technique [0003] Rolling refers to a manufacturing process in which a material, such as a metal, is passed through at least one pair of rolls. The rolls used in the surface finishing of sheet metal are generally large (e.g., 7 feet long by 2 feet in diameter) metal rolls, which may be made of forged steel, difficult-to-grind high-speed steel, or have different Cr levels made of ICDP steel. The manufacture of these rolls often involves a cylindrical grinding process called (roll) grinding, in which a bonded grinding wheel is passed back and forth across the surface of the roll on a dedicated roll grinder to grind the surface of the roll and Make it smooth. [0004] Some of the challenges presented by the roll grinding process relate to the surface ...

AI Technical Summary

Problems solved by technology

Since the grinding wheel must leave the grinding zone for dressing, the roll grinding is interrupted, increasing the total time required to produce a clean roll

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