Diamond saw blade temperature effect

Saw the influence of temperature on the process mainly manifested in two aspects: First, cause agglomeration of diamond graphitization; two diamond and matrix is caused by the thermal Wilson force caused premature loss of diamond particles. New research showed that: the heat generated during polycrystalline diamond incoming agglomeration. Arc temperature is not high, generally between 40 ~ 120 ℃. The abrasive grinding point temperature was high, generally between 250 ~ 700 ℃. The coolant only reduce the average temperature of the arc zone, the temperature has little effect on the grain. This does not result in graphite carbonization temperature, but will make the friction between the abrasive particles and the workpiece change in properties, and to occur between the diamond and the additive thermal stress, which led to a fundamental Diamond blade curved diamond technology. Studies have shown that the temperature effect is to make the biggest factors blade breakage. Grinding damage: the force effects and temperature than the response, after a period of use of the blade tend to produce wear damage. Grinding damage in the form of mainly the following: abrasive wear, local crushing, a large area of ​​broken off, binders direction along the cutting speed of the mechanical abrasions. Abrasive: Diamond particles and constant friction formula pieces, into a flat edge passivation, loss cutting, cutting tools friction. Heat causes the cutting surface of the diamond particles graphite sheet, the hardness greatly reduced, increased wear: the surface of the diamond particles exposed to alternating thermal stresses, and also the cutting under alternating stress, fatigue cracks will be partially broken, revealing a sharp new edge, is an ideal wear pattern; large area broken: diamond particles in the Leads to withstand shock loads, the more prominent grain and grain prematurely consumed; shedding: the diamond cutting force alternating binding agent particles are constantly being generated shaking loose. Meanwhile, the cutting process of the binding agent itself wear and cutting heat to soften the binding agent. This makes the gripping force decreased binding agent, when the particle is greater than the cutting force on the gripping force, the diamond particles will fall off. No matter what kind of wear and tear with the diamond particles to withstand load and temperature are closely related. Both of which are determined by Cheng cutting process and cooling lubrication conditions.