This paper is relating to the new dressing process which applies the wet blasting process. Low concentration slurry of abrasive particles with liquid is blasted from the blasting gun by means of compressed air of rather low pressure, 0.3～0.4 MPa, which may be called as " Gentle Wet Blasting" [1, 2] process. By blasting the slurry in such conditions on the wheel surface which had been trued by a diamond truer or any other truing device, the height of the abrasive grains protruded from the bond material surface can be finely adjusted; besides, micro-cutting edges can be generated on the grains of the wheel.
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