The cutting parameter are blade RPM, cutting concentration and feeding speed if the stone is harder, should select fine grit. Its size effect the cutting efficiency, blade stress and cooling conditions of blade area. Generally, when it is higher linear speed on diamond saw blade, to select small cutting depth, From current technology, the depth of cutting blade shall be chosen between 1mm-10mm. Abrasive grinding point temperature is higher, generally between 250-700 Degrees C. This makes the holding force of the binder decreased, when the cutting force on the particles is greater than the holding force, the diamond particles will fall off.  

Cutting heat will make the diamond particle surface a thin layer of graphitization, the hardness is greatly reduced, and increased wear diamond particle surface is subjected to alternating thermal stress, but also to withstand the stress of alternating cutting, there will be fatigue crack partially broken, revealing a sharp new edge, is an ideal wear pattern; large area of broken: the diamond particles in Qie Ruqie withstand the impact load, the more outsanding particles and grain consumed prematurely; off: alternating cutting force so that the diamond particles in the binder is shaking then cause loose. Force and temperature effects caused by the diamond saw blade worn to donate loss. It indicates that the temperature effect is to make the biggest impact of blade breakage.The factors that influence diamond saw blade life The influence factors of diamond blade efficiency and life are cutting technological parameter, grit of diamond, concentration, bond hardness.

For granite with high quartz content and hard cutting, the linear speed of blade shall be taken in lower limit. Both deformation will result in the rock section is not straight, stone waste, cutting noise, vibration intensified, resulting in the early diamond agglomerate breakage, lower the saw blade life. So the temperature does not result in a graphite charring, but cause friction between the abrasive and the workpiece performance changes, and between the diamond and additives, thermal stress, which led to the fundamental bending of Portable Electric Drill Manufacturers diamond failure mechanism. When there is a request on processing surface, shall adopt small cutting depth. (b)Temperature effect: the traditional theory: the impact of temperature on the process of cutting is mainly in two aspects: First, to cause the agglomeration of diamond graphitization; secondly, heat force caused by the diamond and matrix and diamond particles prematureoff. At the same time, the binding agent in the sawing process wear and cutting heat to soften the binder. (c)Grinding damage: because of the force and temperature stree, the saw blade will wear damage after a period of cutting. Other influencing factors (1)Diamond grit: the common diamond grits is in the range of 30/35-60/80.

Arc temperature is not high, generally between 40-120 Degrees C. Abrasive wear: diamond particles constant friction with style pieces, edge passivation into the plane, loss of cutting performance, and increase friction. The new study shows that: the heat generated in the cutting process incoming agglomeration. Both of which depend on the cutting process and the cooling and lubrication conditions. Increase the diamond concentration is expected to extend the life of blade, because of the increased concentration that reduce the average cutting force of each diamond, but increase the depth will be surely to add the cost of blade, and thus, there is a most economical concentration, and the concentration will increase with high cutting efficiency.