Posted in Mechanical Engineering

Classification of Grinding Wheels

Grinding wheels are classified by abrasive material, type of bond, grit or grain size, grade, structure, shape and size of the wheel. (a) Abrasive. It is the actual cutting element of the grinding wheel. It is extremely hard and tough by nature. When it is fractured, many sharp edged corners are formed. Metal is removed by these multiple sharp cutting edges. These are of two types. (i) Natural: Emery, Corundum and Quartz (ii) Artificial: Silicon carbide and Aluminium oxide (b) Bond. It is an adhesive that holds the abrasive in the form of wheels. These are of three types: (i)…