Saw blade speed:
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 sawn stone. In terms of the best service life and cutting efficiency of the saw blade, the linear speed of the saw blade should be selected according to the properties of different stones. When sawing granite, the saw blade linear speed can be selected in the range of 25m～35m/s. For granite with high quartz content and difficult to saw, the lower limit of the saw blade linear speed is appropriate. In the production of granite tiles, the diameter of the diamond circular saw blade used is small, and the linear speed can reach 35m/s.
Cutting depth:
The sawing depth is an important parameter related to diamond wear, effective sawing, the force of the saw blade and the properties of the sawn stone. 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. Generally, when large-diameter saw blades are used to cut granite blocks, the cutting depth can be controlled between 1mm and 2mm, while the feed speed should be reduced. When the linear speed of the diamond circular saw blade is large, a large cutting depth should be selected. However, when the sawing machine performance and tool strength are within the permissible range, a larger cutting concentration should be used for cutting to improve cutting efficiency. When there are requirements for the machined surface, small depth cutting should be used.
Feed speed:
The feed speed is the feed speed of the sawn stone. Its size affects the sawing rate, the force of the saw blade and the heat dissipation of the sawing area. Its value should be selected according to the nature of the stone being sawn. Generally speaking, when cutting soft stone, such as marble, the feed speed can be appropriately increased. If the feed speed is too low, it is more conducive to increase the sawing rate. For sawing fine-grained, relatively homogeneous granite, the feed speed can be appropriately increased. If the feed speed is too low, the diamond blade will be easily polished. However, when sawing coarse-grained granite with uneven hardness and softness, 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 in the range of 9m to 12m/min.
