Commonly used tooth shapes include left and right teeth (alternating teeth), flat teeth, ladder flat teeth (high and low teeth), inverted trapezoidal teeth (inverted conical teeth), swallowtail teeth (hump teeth) and rare industrial-grade three left and one right, left and right flat teeth.
1. The left and right teeth are the most widely used, the cutting speed is fast, and the grinding is relatively simple. It is suitable for cutting and sawing all kinds of soft and hard solid wood profiles and MDF, multi-layer board, particle board, etc. The left and right teeth equipped with anti-rebound protective teeth are dovetail teeth, which are suitable for longitudinal cutting of various plates with knots; Left and right tooth blades with negative rake angles are usually used for sawing veneer due to their sharp teeth and good cutting quality.
2. The flat tooth saw mouth is rough, the cutting speed is slower, and the grinding is the simplest. It is mainly used for sawing ordinary wood, with low cost, mostly used for aluminum saw blades with smaller diameters to maintain less sticking when cutting, or for slotted saw blades to keep the bottom of the groove flat.
3. Ladder flat tooth is a combination of trapezoidal teeth and flat teeth, grinding is more complicated, sawing can reduce the phenomenon of veneer cracking, suitable for all kinds of single and double veneer wood-based panels, fireproof board sawing. In order to prevent adhesion, aluminum saw blades are also used with a large number of teeth in ladder flat teeth.
4. Inverted ladder teeth are often used in the bottom groove saw blade of the cutting plate saw, when sawing the wood-based panel with double veneer, the slot saw adjusts the thickness to complete the grooving processing of the bottom surface, and then the main saw completes the sawing processing of the board to prevent the chipping phenomenon of the saw mouth.
In summary, sawn solid wood, particle board, and medium dense board should be selected with left and right teeth, which can sharply cut the wood fiber tissue and smooth the incision; In order to keep the grooving at the bottom of the groove, use a flat tooth shape or combine teeth with left and right flat; Sawing panel, fireproof board generally choose ladder flat teeth, computer cutting saw due to the large sawing cutting rate, the diameter and thickness of the alloy saw blade used are relatively large, diameter of about 350 ~ 450mm, thickness between 4.0 ~ 4.8mm, most of the use of ladder flat teeth to reduce chipping, saw marks.
