How can we choose the appropriate woodworking tools?

The Chinese say: “A worker must first sharpen his tools if he wants to be good at his work.” The phrase “sharp his tools” applied to knives really couldn’t be more realistic. Woodcutting tools are inevitably used in the process of woodcutting and manufacturing. The methods of sawing, cutting, chopping, cutting, planing, drilling, etc. may be different, and the knives used may be different, but the knives are commonly used; in the same way, no matter how good the machine is, no matter how strong it is, If the carbide knives are not matched, the machine will not be used well. So how important it is to “sharp woodworking tools“.

The quality of the tool has a lot to do with whether the material selection is appropriate, whether the heat treatment is good, and the precision of the production. These three points are explained as follows:

  • Precision of production

The so-called precision refers to the accuracy of the tool size, the flatness of the plane, the parallelism of the blade, and the straightness and sharpness of the blade. The quality of the new and old machines used in the production plant, the proficiency of the operators, the appropriateness of the process design and even the quality of the quality inspection control conditions all affect the precision. From the buyer’s point of view, in theory, the more precise the tool is made, the easier it is to install the tool, and the more stable the fit with the machine after installation. The use condition is naturally better and more durable. But the higher the precision, the higher the cost, and there is no free lunch in the world. Some people say that the precision of the date is more than zero after the decimal point, and the price must be more than zero before the decimal point. If your machine is not stable enough, or the accuracy of the machine is not enough, or the tool installation technique is immature, or the operation is improper. No matter how precise the tool is, it has no effect, it just wastes its cost in vain. Therefore, the relationship between the precision of the machine and the knife is suitable for each other.

It is particularly worth mentioning here that most people judge the precision of the tool by the appearance of the tool, which forces the woodworking bit set manufacturer to invest some cost in the processing of the appearance. For example, the smoothness of the surface, the smoothness of the knife edge grinding is indeed related to the sharpness of the knife edge, but the brilliance of the surface of other blades only has the effect of appearance, and there is no substantial benefit. Not only increase costs, but sometimes even sacrifice quality. Because in some cases, grinding with a hard wheel to achieve a brilliant effect will cause greater challenges to straightness or flatness. I prefer to polish the blade edge instead of doing too much processing on other surfaces.

  • Good heat treatment

This is the real skill of the tool, but apart from the hardness test, it is difficult for general customers to know the quality of the heat treatment from the appearance. The general common sense is: “High hardness, better wear resistance, but poor toughness.” For the same material, the same processing method is true. However, different materials cannot be compared, even if the materials are the same, it is sometimes difficult to compare reliably if the processing methods are different. For example, a tool that has been cryogenically treated and a tool that has not been cryogenically treated, the surface is not visible, and the hardness may be about the same, but their wear resistance and toughness may be very different. Some steels may even have several Times the difference. However, most of the special processing costs are very expensive, unless the special expert customers can take the initiative to request, the general tool production factory will not take the initiative to increase these costs, causing difficulties in sales.

Modern heat treatment equipment has a minimum level. As long as it is not steel making by indigenous methods, the heat treatment of tools is not too outrageous. However, the problem that occurs in some knife factories is the problem of improper process management. For example: There are many kinds of steel in the factory, and the wrong materials are taken, or the documents are misread, or they are mistaken for a while, but A material is processed according to the heat treatment curve of B material. Either one less tempering, or poor maintenance of the heat treatment furnace, temperature out of control without knowing it… Various errors caused by loose management systems, plus no midway inspection quality control, no errors will be found, defective products will be produced.

In addition, now more and more people use cemented carbide and PCD woodworking knives. . Therefore, it is better to choose a knife factory above a certain scale when buying a knife.

  • Appropriate material

The material is the root of the carbide tool, unless machining errors, generally speaking, the choice of material has almost determined the use of woodworking tools. Generally, because it is impossible to use in high temperatures in the wood cutting and processing industry, generally everyone is more familiar with and more commonly used materials. According to their wear resistance, they are arranged from low to high: high-speed steel, cemented carbide, PCD and other materials.

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