Cutting parameters of diamond saw blade

Diamond saw blade is a cutting tool, which is widely used in the processing of hard and brittle materials such as stone and ceramics. Diamond saw blades are mainly composed of two parts; the base body and the diamond segment. The substrate is the main supporting part of the bonded diamond segment, while the diamond segment is the part that cuts during use. The diamond segment will be continuously consumed during use, but the substrate will not. The reason why the diamond segment can cut The role of diamond is because it contains diamond, which is currently the hardest substance, and it rubs and cuts the processed object in the diamond segment. The diamond particles are wrapped in metal inside the diamond segment.

 

During use, the metal carcass and the diamond are consumed together. Generally, the ideal situation is that the metal carcass is consumed faster than the diamond, so as to ensure the sharpness of the cutter head and ensure a longer life of the cutter head.

(1) Linear speed of the saw blade: In actual work, the linear speed of the diamond circular saw blade is limited by the equipment conditions, the quality of the saw blade and the nature of the stone being sawed. From the perspective of the best saw blade service life and sawing efficiency, the linear speed of the saw blade should be selected according to the properties of different stone materials. When sawing granite, the linear speed of the saw blade can be selected within the range of 25m to 35m/s. For granite with high quartz content and difficult to saw, it is advisable to take the lower limit of the saw blade linear speed. When producing granite face tiles, the diameter of the diamond circular saw blade used is small, and the linear speed can reach 35m/s.

(2) Cutting depth: Cutting depth is an important parameter related to diamond wear, effective sawing, force on the saw blade and properties of the stone being cut. Generally speaking, when the linear speed of the diamond circular saw blade is high, a small cutting depth should be selected. From the current technology, the cutting depth of diamond can be selected between 1mm and 10mm. Usually, when sawing granite blocks with a large-diameter saw blade, the sawing depth can be controlled between 1 mm and 2 mm, and the feed speed should be reduced at the same time. When the linear speed of the diamond circular saw blade is high, a large cutting depth should be selected. However, within the permissible range of saw machine performance and tool strength, a larger cutting concentration should be used for cutting to improve cutting efficiency. When there is a requirement for the machined surface, a small depth of cutting should be used.

 

(3) Feed speed: The feed speed is the feed speed of the sawed stone. Its size affects the cutting rate, the force on the saw blade and the heat dissipation in the sawing area. Its value should be selected according to the nature of the stone being sawn. Generally speaking, when sawing soft stones, such as marble, the feed speed can be increased appropriately. If the feed speed is too low, it is more conducive to improving the sawing rate. When sawing fine-grained and relatively homogeneous granite, the feed speed can be appropriately increased. If the feed speed is too low, the diamond blade will be easily ground. However, when sawing granite with coarse-grained structure and uneven hardness, the feed speed should be reduced, otherwise it will cause the saw blade to vibrate and cause the diamond to break and reduce the sawing rate. The feed speed of sawing granite is generally selected within the range of 9m to 12m/min.