The commonly used tooth shapes of saws include left and right teeth (alternate teeth), flat teeth, ladder flat teeth (high and low teeth), inverted trapezoid teeth (inverted cone teeth), dovetail teeth (hump teeth), and rare industrial grade three left, one right, left and right flat teeth.
1. The left and right teeth are widely used, with fast cutting speed and relatively simple grinding. It is suitable for cutting and cross sawing all kinds of soft and hard solid wood profiles and density boards, multilayer boards, particleboards, etc. The left and right teeth equipped with anti rebound protection teeth are dovetail teeth, which are suitable for longitudinal cutting of various plates with knots
The left and right teeth saw blade with negative front angle is usually used for panel sawing due to its sharp teeth and good sawing quality.
2. The flat tooth saw has rough cutting edge, slow cutting speed and the simplest grinding. 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 for slotting saw blade to keep the groove bottom flat.
3. The ladder flat tooth is a combination of trapezoid teeth and flat teeth, which is relatively complex in grinding. When sawing, it can reduce the phenomenon of veneer cracking. It is suitable for sawing various single and double veneered wood-based panels and fire-resistant panels. In order to prevent adhesion, the aluminum saw blade also uses the saw blade with a large number of flat teeth.
4. The inverted ladder tooth is often used in the bottom slot saw blade of the panel saw. When sawing the double faced wood-based panel, the slot saw adjusts the thickness to complete the slotting of the bottom surface, and then the main saw completes the sawing of the panel, so as to prevent the edge collapse of the saw opening.
To sum up, the left and right teeth should be selected for sawing solid wood, particleboard and medium dense board, which can cut the wood fiber structure sharply and make the incision smooth; in order to keep the groove bottom flat, the flat tooth shape or the left and right flat combination teeth should be used; the ladder flat teeth are generally selected for sawing veneer and fire-proof board, and the computer cutting saw has a large cutting rate, the diameter and thickness of the alloy saw blade are relatively large, straight The diameter is about 350-450 mm, and the thickness is between 4.0-4.8 mm. Most of them use ladder flat teeth to reduce edge collapse and saw marks.