Grinding can be considered as a system engineering

including machine set the input side, the workpiece material type, operating parameters, and selection of four wheel, through the grinding process, the output is the result of grinding (surface quality, productivity and  cutting disc economic cost). Once the grinding results failed to achieve the desired results, the four factors from the input verification, rather than the wheel. Sometimes the problem is not because the wheel, but because of the workpiece material changes or fluctuations in heat cause the grinding problems, just to check from the wheel angles tend to waste a lot of time.
The wheel is not possible to use the  cut off wheel more expensive the wheel, the more expensive the more difficult to use this argument wheel, the wheel should be more applicable to the better use what is applicable, in accordance with the conditions of your machine and the material to be processed wheel design with models, to cut freely, to reach the surface quality requirements.Abrasive wheel constitute the main material, has high hardness, brittleness and thermal stability appropriate, in the grinding process of the workpiece from the cutting action; binding agent is the role of abrasive consolidation up to a certain shape of the and intensity of abrasive; pores are present in the grinding gap, grinding debris and heat capacity plays the role.