Can CBN wheels grind cemented carbide? Why?
Tungsten carbide and non-metallic ceramic materials are usually made of diamond grinding wheels.CBN can iron group elements of workpiece.According to the development trend of ordinary abrasive abrasive, > superhard abrasiveCorundum like A - >CBN BSilicon carbide C> diamond DThe rule: A sends to B, C develops D
Diamond grinding wheels are commonly used for grinding carbide. Because diamond is much harder than CBN, only CBN grinding wheel is selected for grinding iron family material. So we should choose diamond grinding wheel.
Cubic boron nitride grinding should not hard alloy and non-metallic hard materials in grinding, high temperature, CBN in alkaline aqueous solution will produce a chemical reaction, CBN wheel can be decomposed in 300 DEG C in alkaline solution, can trace decomposition in boiling water, the crystal grains were damaged, so the grinding, can only use oily the cooling liquid, and can not use water-based coolant.CBN wheel grinding for mild steel, heat-resistant steel, high hardness alloy steel precision grinding and finish grinding. The special steel products such as tungsten, molybdenum and cobalt high speed steel, alloy steel, high-speed steel with special grinding, super finishing machining of heat-resistant parts, and other steel quenching workpiece grinding line.
Cubic boron nitride (CBN) grinding wheel is not suitable for grinding carbide and non-metallic hard materials. Cubic boron nitride (CBN) grinding wheel is suitable for processing several material products: high manganese steel; high chromium nickel molybdenum alloy steel; the chilled cast iron (HS80 ~ 90); the various types of hardened steel (HRC55 ~ 65); various types of iron (HB200 ~ 400), and has been in the domestic car (gear, flywheel, shaft, bearing, roller, machining) (slurry pump impeller, volute, shield, sheath and other processing) and mould, the glass cylinder; and the gem high hardness of soft and ductile materials, the high hardness in all walks of life to machining processing of materials, and can enhance the working efficiency. Greatly saves processing time and power and gain huge economic benefits.
