GRINDING METHOD FOR DIAMOND CARBIDE TOOL STOCK

摘要

PURPOSE:To grind a diamond carbide tool stock with good efficiency by utilizing the chemical reaction of Fe and C by matching to machine grinding. CONSTITUTION:The diamond carbide tool stock 1 fitted to a drill, etc. by brazing the composite material fitting a diamond particle to a carbide(WC) is ground in the necessary shape and dimension at its outer diameter, etc., by the grinding wheel 4 fixing numerous diamond abrasive grains 2 by an iron made bond 3. In this case, the Fe of the grinding wheel 4 and C of the diamond of this tool stock 1 are subjected to chemical reacting in case of the grinding temp. becoming at about 700 deg.C and the C of the diamond is absorbed into the iron. Consequently, the carbide body of the diamond carbide tool stock 1 can be subjected to grinding with good efficiency by the diamond abrasive grains 2 of the grinding wheel 4.