How to sharpen slitter circular blade?

Slitter blades are high-performance blades that are used in the industry to cut all sorts of materials from metal to tissue paper. Splitter blades are expensive, and so they often get sharpened when they become dull, as opposed to household blades, which are usually just replaced with new ones. Sharpening a slitter blade in many respects is similar to sharpening other tools.
Check the cutting edge of a slitter blade with a magnifying glass and spot any nicks and burrs. Grind them off with a medium-grit wheel on your bench grinder.Hold the slitter blade with the beveled side up, moving it side to side against the sharpening wheel.Keep the cutting edge square with the wheel.Turn the blade over, this time, bevel side down, repeating the previous steps, this time holding the blade at a 25-degree angle in order to match the bevelFinish the edge on the fine-grit stone. You can put a few drops—no more—of light machine oil on the surface of the stone.Pull the blade toward you, holding the bevel flat against the stone, and lift it at the end of the stroke.Wipe the blade clean every third stroke, using a clean rag, every time re-oiling the stone.Remove any burrs that might have been created by dragging the blade across the stone with its bevel side up.Re-examine the slitter blade you worked on with a magnifying glass.

In addition, slitter circular blade assemblies for cutting off thin flat workpieces including films, sheets of paper, metal foils, etc., for example, generally comprise an upper blade and a lower blade which rotate in respective opposite directions while their circumferential edges are being held in sliding contact with each other, for continuously cutting of the thin flat workpiece. The shape of cutting edges on a rotary blade greatly affects the quality of severed surfaces on the workpiece.

A disk-shaped rotary blade of a slitter blade assembly has a cutting edge and a first beveled surface facing a drum-shaped rotary blade of the slitter blade assembly and progressively spaced from the drum-shaped rotary blade toward the cutting edge. The disk-shaped rotary blade also has a second beveled surface facing a workpiece to be cut off and progressively spaced from the cutting edge away from the workpiece.

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