Grinding SlideShare
Aug 26, 2015· 3. Wheel Materials 1. Abrasive: it is that material of grinding wheel which does the cutting action (a) Natural Abrasive: The common natural abrasives are sand stone, emery (50 60%crystalline AL2O3+iron oxide) corundum (7590% crystalline aluminium oxide+iron oxide), and diamond The sand stone is used only...