NEWS
08
2020
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12
How to Use Hard Alloy Saw Blade Correctly and Reasonably
Cemented carbide diamond saw blade contains tooth shape, angle, number of teeth, saw blade thickness, saw blade diameter, carbide types and other parameters, these parameters determine the processing ability and cutting performance of the saw blade. When selecting the saw blade, the parameters of the saw blade should be correctly selected according to the needs.
The angle of the serration is the position of the serration when cutting. The angle of the serration affects the performance of diamond cutting. The greatest impact on cutting is the rake angle γ, back angle α, wedge angle β. The rake angle γ is the cutting angle of the serration. The larger the rake angle, the lighter the cutting, and the rake angle is generally between 10-15 degrees. The back angle is the angle between the serration and the processed surface. Its function is to prevent the serration from rubbing against the processed surface. The larger the back angle, the smaller the friction and the smoother the processed product. The back angle of the carbide diamond saw blade is generally 15 °. The wedge angle is derived from the front and back angles (Fig. 2). But the wedge angle can not be too small, it plays a role in maintaining the strength, heat dissipation and durability of the teeth. The sum of the rake angle γ, the back angle α and the wedge angle β is equal to 90 °.
Tooth profile, commonly used teeth are flat teeth, bevel teeth, trapezoidal teeth, inverted trapezoidal teeth, etc. (Figure 1). Flat tooth is the most widely used, mainly used for ordinary wood sawing, this tooth profile is relatively simple, the saw mouth is relatively rough, in the slotting process operation flat tooth can make the groove bottom flat. The quality of diamond cutting saw is relatively good, suitable for sawing all kinds of wood-based panels and veneers. The trapezoidal teeth are suitable for sawing veneer and fireproof board, and can obtain higher sawing quality. Inverted trapezoidal teeth are often used for bottom groove saw blades.
The number of serrated teeth, generally speaking, the more teeth, the more cutting edges are cut in unit time, and the better the cutting performance. However, the number of cutting teeth requires a large number of hard alloy, and the price of the saw blade is high. However, the serrated teeth are too dense, and the chip tolerance between the teeth becomes smaller, which is easy to cause the saw blade to heat up. In addition, if the feed is not properly matched, the cutting amount per tooth is small, the cutting amount will aggravate the blade, affect 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 of diamond sawing.
The quality of the carbide saw blade also has a certain impact on the use. The high-quality saw blade has a good effect and can be expanded to extend the service life. Many common people are committed to research. Finally, Dongfang Industrial Automation Co., Ltd. has successfully developed a special saw blade gear opening equipment-automatic CNC saw blade gear opening machine in more than a year.
The full-automatic CNC punching machine for saw blade punching refers to the CNC punching machine which realizes the numerical control and full-automatic effect through the transformation of the traditional punching machine and the combination of software programming technology. On the surface, it seems that a numerical control cabinet is combined on the basis of the ordinary punching machine, but the production efficiency is greatly improved and the labor cost is reduced.
The thickness of the saw blade In theory, we hope that the thinner the saw blade, the better. The saw seam is actually a kind of consumption. The material of the saw blade with carbide saw blade and the process of manufacturing the saw blade determine the thickness of the saw blade. When selecting the thickness of the saw blade, the stability of the saw blade and the material to be sawed should be considered.
