Norton Grinding Wheel / Batu Asah 10" Inch 255 X 25 X 31.75 A60 Putih

NORTON GRINDING WHEEL / BATU ASAH WHITE COLOUR / PUTIH 38A / WA - WHITE ALUMINIUM OXIDE Ukuran 10 #34; / 10 inch 255 x 25 x 31.75 38A - 60 LVBE diameter batu = 255 mm / 10 #34; inch tebal batu = 25 mm diameter lubang tengah = 31.75 mm What is a grinding wheel? A grinding wheel is a precision tool with thousands of cutting points on its surface - abrasive grains that are held in place by a bond matrix (hence these are known as bonded abrasives) and separated by pores. These pores are hollow spaces between abrasive grains and the bond , which help with the clearance of discarded metal chips in the grinding process. When the wheel is in use, the abrasive grains cut into the material that is being ground, removing the unnted surface material in small chips. During grinding, the cutting points on the abrasive grains are worn flat; becoming increasingly blunt. At the same time, the increased friction causes a build-up of heat, which fractures the abrasive grain and exposes new cutting edges or begins to disintegrate the bond bridges that hold the abrasive grains in place. In normal vitrified grinding, the wheel has to be dressed using a dressing tool. By varying the properties of the abrasive, the type of bond, the wheel’s construction, it is possible to produce grinding wheels with a vast range of different grinding characteristics. Ceramic Aluminium Oxide Often referred to as just “Ceramic”, Norton Quantum’s patented ceramic form of aluminium oxide is harder and sharper than conventional abrasive grains. Aluminium Oxide Generally recommended for grinding materials of high tensile strength, such as stainless steel and tool steels but it can also be used on some high tensile aluminium and bronze alloys.