Why not cut wood with a knife, but saw wood with a saw

Xiaohua's family invited two master carpenters to make windows for their family to close the balcony. Xiao Hua watched the master carpenter use saws of different sizes to saw the planks into strips of different sizes, and then skillfully assembled them, and a complete set of balcony windows was assembled at a glance. Xiaohua asked the carpenter master at this time:

Master, why don't you cut wood with a knife, but use a saw to see wood? What's so important here? The master carpenter patiently told Xiaohua:

It is said that a long, long time ago, when someone was climbing a mountain, he used his hand to pull a weed with jagged leaves, and as a result, he pulled a deep wound on his hand, so people were inspired to invent saws. Isn't it possible to pull apart something hard with such a sharp tool with teeth? If you cut wood with a knife, because the slit of the knife is very narrow, the wood will clamp the knife tightly and cannot move, so it is very difficult to cut wood with a knife.

The serration is different, it is sharp, like a knife, and when made, one serration is crooked to the left, the next is crooked to the right, and the next is crooked to the left......In this way, when sawing wood, the sawed seam is relatively wide, and the saw will not be clamped. Sawing wood with a saw is fast and labor-saving, so people use a saw to see wood without a knife. Xiao Hua was very happy because he had learned from the master carpenter.

If you cut it with a knife, when it reaches a certain depth, the wood will jam the knife tightly and can no longer pull it, why won't it get stuck with a saw? Observe the serrations of the saw blade, which are inclined to both sides of the saw blade, so that the saw opening will be wider than the saw blade, and the saw blade will not get stuck

By: mystudy

You can try that one to work better.

It depends on your work efficiency, familiarity, whether you are skilled, of course fast if your skills are good, but if you are not good, it will be very slow, practice makes perfect.

It can be cut with carbide toothed blades, which are easy to cut, but more laborious to cut with diamond cutting discs.

Tungsten carbide toothed blades can be used for cutting.

Your idea is right, this is because the back and forth cutting like a saw, and the direct cutting, more friction process, in this way, not only conducive to the force, but also can improve the accuracy of the cutting, and more conducive to the use of the characteristics of the knife, if you enlarge the knife, in fact, you will see that it is uneven, which also uses the characteristics of "saw" at the same time.

A saw is a saw, a blade is a split.

Since it is to sawn wood, of course it is to use a saw

If it's a chop or a chop, then use a knife

The use of a knife is called splitting, and the use of a saw is called sawing

Have you ever seen a saw, see the difference between a knife and a base. Actually, you can use a knife, but you have to work hard, maybe the knife and the wood will rub and heat up, and your piece of wood will be used as firewood.

The multi-blade milling cutter can improve the processing efficiency, but the simultaneous cutting of multiple saw blades will increase the tool load, and if the stiffness of the tool system is insufficient, it will be seriously deformed, and even quickly reduce the accuracy of the machine tool. You must know that a machining center can easily be hundreds of thousands, and there are not a few millions. It is relatively appropriate to use higher cutting speeds (which can reduce cutting forces within a certain range, but reduce tool life) and large feeds.

It is used for wood cutting because of the low strength of wood (relative to most metals).

Multi-blade milling cutter is generally thinner, the amount of back holding cutter will generally be relatively large, and there will be a large impact when cutting in, for the tool commonly used materials cemented carbide and cermet, although the strength and hardness are very high, but the higher the hardness often means that it is not durable.

The manufacture of integral multi-blade milling cutters is more troublesome and more expensive, and the sharpening is also a problem. With interchangeable carbide inserts, it can be difficult to find the correct mounting position.