What are the common tooth shapes of carbide saw blades?
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What are the common tooth shapes of carbide saw blades?
Tungsten carbide saw blade is the most commonly used cutting tool for wood products processing. The quality of the carbide saw blade is closely related to the quality of processed products. Correct and reasonable selection of carbide saw blade is of great significance to improve product quality, shorten processing cycle, and reduce processing cost. The cemented carbide saw blade contains many parameters, such as the type of carbide cutter head, the material of substrate, diameter, number of teeth, thickness, tooth shape, angle, hole diameter, and so on. These parameters determine the machining ability and cutting performance of the saw blade.
The common tooth shapes of cemented carbide saw blades are left and right teeth (alternate teeth), flat teeth, ladder flat teeth (high and low teeth), inverted trapezoid teeth (inverted conical teeth), dovetail teeth (hump teeth), and industrial grade three left and one right, left and right right flat teeth, etc.
Left and right teeth
The left and right teeth are widely used with high cutting speed and relatively simple grinding. It is suitable for cutting and sawing all kinds of soft and hard solid wood profiles, density boards, multilayer boards, particleboards, etc. It is usually used for cutting the left and right sawtooth with sharp teeth, which is suitable for cutting the left and right sawblade with sharp teeth.
Flat teeth
The flat tooth saw edge is rough, the cutting speed is slow, and the grinding is the most simple. It is mainly used for sawing ordinary wood with low cost. It is mainly used for aluminum saw blade with small diameter to reduce adhesion during cutting, or it is used for grooving saw blade to keep groove bottom flat.
Trapezoid teeth
Ladder flat tooth is a combination of trapezoidal teeth and flat teeth, which is more complex in grinding. It can reduce the phenomenon of veneer cracking when sawing. It is suitable for sawing all kinds of single and double veneered wood-based panels and fireproof boards. In order to prevent adhesion, the saw blade with ladder flat teeth is often used.
Inverted ladder teeth
The inverted ladder tooth is often used in the bottom groove saw blade of the panel saw. When sawing the double faced wood-based panel, the groove saw adjusts the thickness to complete the undercut processing, and then the main saw completes the sawing process of the board, so as to prevent the edge collapse of the saw edge.
For sawing solid wood, particleboard, and medium-density board, the left and right teeth should be selected to cut the wood fiber structure sharply and the incision should be smooth; in order to keep the groove bottom flat, flat tooth shape or left and right flat combined teeth should be used; Generally, ladder flat teeth are selected for sawing veneer and fireproof board. Due to the large cutting rate, the diameter and thickness of alloy saw blade used by computer cutting saw are relatively large, with a diameter of 350-450mm and thickness of 4.0-4.8mm. Ladder flat teeth are mostly used to reduce edge collapse and saw marks. The tooth shape of the cemented carbide saw blade determines its machining ability and cutting performance. The tooth shape of the saw blade should be selected according to the actual demand.
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