Selection of cemented carbide saw blade (2)

Alloy saw blade diameter selection

The diameter of the saw blade is related to the sawing equipment used and the thickness of the workpiece. Saw blade diameter is small，which cutting speed is relatively low. Saw blade diameter is high for the saw blade and saw cutting equipment requirements. And saw cutting efficiency is also high. The outer diameter of the saw blade is consistent with the diameter of the saw blade according to different circular saw machine models.

The diameter of standard parts is: 110MM(4 inch), 150MM(6 inch), 180MM(7 inch), 200MM(8 inch), 230MM(9 inch), 250MM(10 inch), 300MM(12 inch), 350MM(14 inch), 400MM(16 inch), 450MM(18 inch), 500MM(20 inch), etc. The bottom slot saw blade of precision cutting board saw is designed for 120MM.

Number of teeth selection

The number of teeth, generally speaking, the more teeth, the more cutting edge in unit time, the better the cutting performance.But the number of cutting teeth need more carbide quantity. The price of the saw blade is high.But the sawtooth is too dense.The chip tolerance between the teeth becomes small, which it is easy to cause the saw blade fever; In addition, too many saw teeth, when the feed is not properly matched, the cutting amount of each tooth is very small, will intensify the friction between the edge and the workpiece, affecting the service life of the blade. Usually the tooth spacing in 15-25mm, should choose a reasonable number of teeth according to the sawing material.

Selection of thickness

The thickness of the saw blade we want the saw blade as thin as possible theoretically. Sawing is actually a consumption. The thickness of the alloy saw blade is determined by the material of the alloy saw blade and the process of making the saw blade. If the thickness is too thin, the saw blade is easy to shake when working, which affects the cutting effect. When choosing the thickness of saw blade, the stability of saw blade and the material of saw should be considered. Some special purpose materials require a specific thickness, should be used according to equipment requirements, such as slotted saw blades, scribing saw blades, etc