When using the saw blade, you will find that the saw blade not only has a size, but also the number of saw blade teeth of the same size, why is it designed this way, how much is better or less?
In fact, the number of sawteeth is related to whether the wood you want to cut is cross-cutting or longitudinal cutting, the so-called longitudinal cutting is cutting in the direction of the wood grain, and cross-cutting is cutting at 90 degrees with the direction of the wood grain.
We can do an experiment and cut wood with a knife, and you will find that the horizontal cut is mostly particulate matter, and the longitudinal cut is a strip, and the wood is essentially fibrous tissue, and it is reasonable to have such a result.
And multi-tooth saw blade, at the same time, you can imagine the situation of multiple knives cutting, the cutting is smoother, after cutting, observe the dense tooth marks of the cutting surface, the flatness of the saw edge is high, the speed is fast and easy to paste the saw (that is, blackening on the sawtooth), and the excretion of sawdust is slower than the number of teeth. It is suitable for scenarios with high cutting requirements, and the cutting speed is appropriately slowed down, which is suitable for cross-cutting.
There are few sawteeth, and the sawn cut surface is relatively rough, the tooth mark spacing is large, the wood chip removal speed is fast, suitable for cork rough processing, and the sawing speed is fast. Slongitudinal cutting has advantages.
If you take a multi-tooth cross-cutting saw blade to cut longitudinal cutting, because the number of teeth is easy to cause poor chip removal, the speed is fast, and it is possible to paste saw and pinch saw
Pinching saws can easily become dangerous when they occur.
Plywood, MDF and other artificial boards, after processing, the direction of wood grain has been artificially changed, losing the characteristics of forward and reverse cutting, cutting with multi-tooth saw blade, slow down and smooth movement, the use of saw blades with fewer teeth, the effect will be much worse.
If the wood grain is cut diagonally, it is recommended to use a multi-tooth saw blade, which is a safety hazard with less tooth saw blade.
Summary, if you encounter such a problem as how to choose a saw blade in the future, you can cut more obliquely, cross cut to choose your sawing direction to decide what kind of saw blade to use, saw blade teeth are more teeth and less teeth, according to the direction of wood fiber to choose, miter cutting cross cutting to choose more teeth, longitudinal cutting to choose less teeth, wood grain structure mixed to choose cross cutting.
