The important role of diamond grinding wheels in stone
Measurement of cutting temperature and cutting force under deep sawing conditions
Conduct deep sawing using small-scale laboratory experiments to measure the heat and cutting force generated in the cutting area. This information is necessary for determining the lubrication equipment of large-scale production sawing machines and predicting the cutting forces that diamond tools may withstand during the machining process. High strength diamond was used, with a particle size of 30/40 and a particle count of 660± per carat; 30 capsules. Firstly, the moderately hard Italian granite was sawn, followed by the more difficult to machine Indian red granite, which is one of the most difficult materials to cut. In the sawing test, the sawing depth is maintained at 90mm, and the feeding speed is adjusted to change between the mildest cutting conditions of 100cm2/min and the most severe conditions of 600cm2/min. This condition can meet the production efficiency set for industrial production from 380cm2/min to 1000cm2/min. The temperature measurement results were obtained. As expected, the cutting temperature generated by the increase in sawing efficiency is also increasing, but even at the highest speed, the cutting temperature generated is still below 200 ℃. Use a dynamometer to measure the normal and tangential forces in machining, providing assistance for the design of saw machines and the development of maximum size tool specifications. The analysis of cutting force and the investigation of diamond wear process determine which stage of work should be carried out within its process range. This is the key to maintaining uniform diamond wear and adjusting the exposure height required for diamond to complete material cutting< Br/> Processing requirements for granite deep sawing
Based on the information obtained in the first stage, determine the specially designed processing equipment related to the deep sawing process. Considering the design of diamond saw blades, focus on checking the following tool design requirements. The specifications and processing conditions of the tool must ensure that the thickness of the abrasive chips achieved when the material removal rate and diamond exposure height match. Under the conditions of deep sawing, unlike when the chip thickness is too small, the main concern is that if the cutting parameters are too large, the chip thickness will exceed the exposure height of the diamond. In this example, due to the excessive brittleness of diamond particles, there will be insufficient gap between the workpiece and the bond, leading to catastrophic failure. This will cause an increase in normal force, resulting in catastrophic failure of the tool. On the other hand, the project plan focuses on various requirements such as machine tool stability and lubrication power, which will be considered when the deep saw machine is finally assembled< Br/> &Nbsp