Main uses of super-thin cutting wheels
Super-thin cutting wheels are mainly used for precision grooving and cutting. Generally, use deep-cut slow-feed grinding. It has the characteristics of large grinding depth, small feed speed, large contact area between grinding wheel and workpiece, narrow slit, high metal removal rate, high grinding accuracy, good surface quality and high material use rate. The general rules are as follows:
2). The surface quality and cutting performance of the workpiece are mainly related to the grain size of the super-thin cutting wheel abrasive. The finer grain size, the better surface finish. It is also related to the workpiece material , hardness, cutting amount, machine conditions, processing requirements and other factors.
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3). super-thin cutting wheels are generally shaped and sharpened before leaving the factory, and users can use them directly. If the user needs further shaping, it is recommended to use green silicon carbide or white aluminium whetstone.
4). The cutting amount is generally related to the material being processed, hardness, accuracy, processing requirements, etc. It is recommended user to use it under the original conditions at the first time, and don't change the cutting amount easily.
5). The integral cutting wheel has a thin thickness (mostly below 0.5mm), a small outer diameter (20-100mm), fine grain size, high size, shape and position accuracy, and light weight. It is generally used under high speed conditions. Typical speed is 5000-40000 rpm.
6). The base cutting wheels are mostly thick (0.5-2mm), large diameter (100-200mm), coarse grain size, low accuracy, and are generally used under conditions of low speed and large depth of cut. Typical speed is 3000-10000 rpm.
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7). super-thin cutting wheels mostly use fine grain size, and generally, the thinner thickness, the finer abrasive grain size will be, and the better surface quality will be. However, the finer abrasive size, the lower cutting sharpness, and the feed rate should be reduced accordingly to suit the workability of the abrasive size.
8). The cutting depth of super-thin cutting wheels is generally determined by the user according to the cutting parts. Most of the cutting uses a slow-feed grinding process, and the depth is cut once. In this way, because the cutting wheel is thin and the cutting conditions are poor (most of them are in contact with the workpiece on three sides), it is difficult to dissipate heat. Therefore, it is necessary to increase (flow, pressure) the cooling of the cutting area.
9). The user's operating conditions are also the main factors affecting cutting performance, especially the axial spindle runout, radial runout, hub parallelism and machine dynamic balance will directly affect the cutting wheel.
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