(1) Selection of thickness
The thickness of the saw blade: In theory, we hope that the saw blade is as thin as possible. The saw kerf is actually a kind of consumption. The material of the alloy saw blade base and the process of manufacturing the saw blade determine the thickness of the saw blade. If the thickness is too thin, the saw blade will easily shake during operation, affecting the cutting effect. When choosing the thickness of the saw blade, you should consider the stability of the saw blade and the material being cut. Some materials for special purposes also require specific thicknesses and should be used according to equipment requirements, such as grooving saw blades, scribing saw blades, etc.
(2) Selection of tooth shape
Commonly used tooth shapes include left and right teeth (alternating teeth), flat teeth, trapezoidal teeth (high and low teeth), inverted trapezoidal teeth (inverted conical teeth), dovetail teeth (hump teeth), and the rare industrial-grade triangular teeth. Left and right, left and right, left and right flat teeth, etc.
1. The left and right teeth are widely used, the cutting speed is fast, and the grinding is relatively simple. It is suitable for cutting and cross sawing various soft and hard solid wood profiles and density boards, multi-layer boards, particle boards, etc. The left and right teeth equipped with anti-rebound protection teeth are dovetail teeth, which are suitable for longitudinal cutting of various boards with tree knots; the left and right tooth saw blades with negative rake angles are usually used for stickers due to their sharp teeth and good sawing quality. Sawing of panels.
2. The flat-tooth saw edge is rough, the cutting speed is slow, and the grinding is relatively simple. It is mainly used for sawing ordinary wood with low cost. It is mostly used for aluminum saw blades with smaller diameters to reduce adhesion during cutting, or for grooving saw blades to keep the groove bottom flat.
3. The trapezoidal teeth are a combination of trapezoidal teeth and flat teeth. The grinding is more complicated. It can reduce the cracking of the veneer during sawing. It is suitable for sawing various single and double veneer artificial boards and fireproof boards. Aluminum saw blades often use trapezoidal saw blades with a larger number of teeth to prevent adhesion.
4. Inverted ladder teeth are often used in the bottom groove saw blade of panel saws. When sawing double-veneered artificial boards, the groove saw adjusts the thickness to complete the groove processing of the bottom surface, and then the main saw completes the sawing process of the board. Prevent edge chipping at the saw edge.
5. In summary, when sawing solid wood, particleboards, and medium-density boards, you should choose left and right teeth, which can sharply cut off the wood fiber tissue and make the cuts smooth; in order to keep the groove bottom flat, use flat teeth or use Left and right flat combination teeth; when cutting veneer panels and fireproof boards, ladder flat teeth are generally used. Due to the high cutting rate, the computer cutting saw uses an alloy saw blade with a relatively large diameter and thickness, with a diameter of about 350-450mm and a thickness of 4.0 -4.8mm, most use trapezoidal teeth to reduce edge chipping and saw marks.
