The dullness model of diamond wheels in condition of invariable grinding force

Draws the curve of the dullness of grinding wheel by carrying grinding experiment in the condition of invariable grinding force.As the same time,the curve was analysis to find the property at different condition.In the initial stages,the dullness rate is lowest and the grinding efficiency is the greatest.And the curve figure changes from concave to protruding,which is greatly different from wear curve.The dullness process in the normal dullness stages is similar with wear process of wheels,which increase linearly with the increase of time.