1. Selection of diameter
The diameter of the saw blade is related to the sawing equipment used and the thickness of the workpiece being cut. The diameter of the saw blade is small, and the cutting speed is relatively low; the diameter of the saw blade is high, and the requirements for the saw blade and sawing equipment are high, and the sawing efficiency is also high. The outer diameter of the saw blade should be selected according to different circular saw machine models. Use a saw blade with a consistent diameter. The diameters of standard parts are: 110MM (4 inches), 150MM (6 inches), 180MM (7 inches), 200MM (8 inches), 230MM (9 inches), 250MM (10 inches), 300MM (12 inches), 350MM ( 14 inches), 400MM (16 inches), 450MM (18 inches), 500MM (20 inches), etc. The bottom groove saw blades of precision panel saws are mostly designed to be 120MM.
2. Selection of the number of teeth
The number of teeth of the saw teeth. Generally speaking, the more teeth there are, the more cutting edges can be cut per unit time and the better the cutting performance. However, more cutting teeth require more cemented carbide, and the price of the saw blade will be higher, but the saw teeth are too dense. , the chip capacity between the teeth becomes smaller, which can easily cause the saw blade to heat up; in addition, there are too many saw teeth, and when the feed rate is not matched properly, the amount of cutting per tooth will be very small, which will intensify the friction between the cutting edge and the workpiece, affecting the service life of the blade. . Usually the tooth spacing is 15-25mm, and a reasonable number of teeth should be selected according to the material being sawed.
