Alloy saw blades are a product that we are all familiar with, because we often see them in our daily lives, so their popularity has increased significantly. Today, let's talk about some simple knowledge about alloy saw blades. I hope to help everyone better understand alloy saw blades. High speed tool steel has good hardenability, strong hardness and rigidity, low heat resistance and deformation, and belongs to ultra-high strength steel. Its thermoplastic stability is suitable for manufacturing high-end ultra-thin saw blades. Suitable for cutting and sawing various soft and hard solid wood profiles, density boards, multi-layer boards, particle boards, etc. The diameter of the saw blade is small, and the cutting speed is relatively low; A large diameter saw blade requires high requirements for the saw blade and cutting equipment, as well as high cutting efficiency. Fine particle and ultrafine particle hard alloy materials are the development direction; Nano coatings, gradient structured coatings, and new structured coatings will significantly improve the performance of saw blades; The application of physical coatings (PVD) continues to increase. The flat tooth saw has a rough edge and a slower cutting speed, making grinding the simplest. From simple production and supply of saw blades, to the development of new cutting processes and corresponding complete sets of technologies and solutions, we provide comprehensive technical support and services for users. The back angle is the angle between the sawtooth and the processed surface, which prevents friction between the sawtooth and the processed surface. The larger the back angle, the smaller the friction, and the smoother the processed product.

Because the length of tool life and efficiency not only depend on the quality of the tool itself, but more importantly, on its reasonable application, that is, only by using different types of tools and different processing parameters under different processing conditions can the best results be achieved. The selection of tooth number and the number of teeth in the sawtooth. Generally speaking, the more teeth there are, the more cutting edges can be cut per unit time, and the better the cutting performance. Here, tungsten steel drill bit recycling is also quite popular. Cutting a large number of teeth requires a large amount of hard alloy, which increases the price of the saw blade. However, if the teeth are too dense, the amount of debris between the teeth will decrease, which can easily cause the saw blade to heat up; In addition, there are too many serrations. If the feed rate is not properly matched, the cutting amount per tooth is very small, which will intensify the friction between the cutting edge and the workpiece, affecting the service life of the cutting edge. When selecting the thickness of the saw blade, consideration should be given to the stability of the saw blade's operation and the material being sawed. The angle of the sawtooth affects the cutting performance. Cutting technology is developing rapidly. The larger the front corner, the better the sawtooth cutting sharpness, the lighter the sawing, and the more effortless the material pushing. Due to the good impact resistance of tungsten cobalt based hard alloys, they are more widely used in the wood processing industry. Ladder flat teeth are a combination of trapezoidal teeth and flat teeth, which are complex to grind and can reduce the phenomenon of veneer cracking during sawing. They are suitable for sawing various single and double veneer artificial boards and fireproof boards. Usually, the tooth spacing is 15-25mm, and a reasonable number of teeth should be selected based on the material being sawed. The left and right teeth are most widely used, with fast cutting speed and relatively simple grinding. The front angle γ, back angle α, and wedge angle β have the greatest impact on cutting. Mainly used for sawing ordinary wood at a lower cost, it is mostly used for aluminum saw blades with smaller diameters to reduce adhesion during cutting, or for slotting saw blades to keep the groove bottom flat. The leading angle γ is the cutting angle of the sawtooth, and the larger the leading angle, the lighter and faster the cutting. The leading angle is generally between 10-15 ℃. The application of hard alloy materials and coatings is increasing. To manufacture economical materials for cutting tools such as T8A, T10A, T12A, etc. When the material being processed is generally soft, choose a larger front corner, otherwise choose a smaller front corner. The toughness of saw blade materials such as ceramics, metal ceramics, silicon nitride ceramics, PCBN, PCD, etc. is further enhanced, and their applications are increasing day by day.

The wedge angle is derived from the front and back angles. The role of saw blade manufacturers has changed. Inverted ladder teeth are commonly used in the bottom groove saw blade of panel saws. When cutting double faced artificial boards, the groove saw adjusts the thickness to complete the bottom groove machining, and then the main saw completes the cutting of the board to prevent edge collapse at the saw edge. Some special materials require specific thicknesses and should be used according to equipment requirements, such as slotting saw blades, marking saw blades, etc. But the wedge angle cannot be too small, it plays a role in maintaining the strength, heat dissipation, and durability of the teeth. The left and right teeth equipped with anti rebound protection teeth are dovetail teeth, suitable for longitudinal cutting of various boards with knots; Left and right toothed saw blades with negative rake angles are usually used for panel cutting due to their sharp teeth and good cutting quality. The selection of hard alloy types, commonly used types of hard alloys include tungsten cobalt (code YG) and tungsten titanium (code YT). The development of saw blades is more targeted. Faced with an increasing number of difficult to process materials, the saw blade industry must improve saw blade materials, develop new saw blade materials, and develop more reasonable saw blade structures. The focus of research and development for saw blade manufacturers is no longer on universal brands and structures. The front corner mainly affects the force consumed by sawing wood chips. The selection of sawtooth angle is complex and professional, and the correct selection of saw blade angle parameters is the key to determining the cutting quality. The level of informatization has increased, cooperation among saw blade manufacturing enterprises has strengthened, and market competition has intensified. The selection of thickness, theoretically we hope the thickness of the saw blade is as thin as possible, and the saw gap is actually a consumption. The outer diameter of the saw blade should be selected according to different circular saw machine models, using saw blades with matching diameters. The material of the alloy saw blade substrate and the manufacturing process of the saw blade determine the thickness of the saw blade. If the thickness is too thin, the saw blade will sway freely during operation, which affects the cutting effect. The angle of the saw tooth is the position of the saw tooth during cutting.

Knowing and understanding what type of cutting tools should be used in what processing state, developing and manufacturing them, and being able to use them correctly, constitutes the core standard components of enterprise application technology. The diameters of the standard components include: 110MM (4 inches), 150MM (6 inches), 180MM (7 inches), 200MM (8 inches), 230MM (9 inches), 250mM (10 inches), 300MM (12 inches), 350MM (14 inches), 400mM (16 inches), 450MM (18 inches), 500MM (20 inches), etc. The bottom groove saw blades of precision panel saws are mostly designed to be 120MM. The example pictures of tooth shapes are as follows: alternating left and right teeth. Ladder flat teeth, ladder flat teeth, anti rebound dovetail teeth, flat teeth, inverted ladder teeth, and other tooth shapes. In summary, when sawing solid wood, particleboard, and medium density board, left and right teeth should be selected, which can sharply cut the wood fiber tissue and make the incision smooth; To maintain a flat groove bottom, use a flat tooth profile or a combination of left and right flat teeth; When sawing veneer panels and fireproof boards, ladder flat teeth are generally chosen. Due to the high cutting rate of computer cutting saws, alloy saw blades with larger diameters and thicknesses are used, ranging from 350-450mm in diameter and 4.0-4.8mm in thickness. Most use ladder flat teeth to reduce chipping and saw marks. To prevent adhesion, aluminum saw blades often use saw blades with a larger number of flat teeth. The main angle parameters are front angle, back angle, and wedge angle. Compared with carbon tool steel, alloy tool steel has better heat resistance, wear resistance, and processing performance. The heat-resistant deformation temperature is suitable for manufacturing high-end alloy circular saw blades at 300 ℃ -400 ℃. High speed cutting, hard cutting, and dry cutting continue to develop rapidly, and their application scope is rapidly expanding. The application of new saw blade materials is increasing. The selection of diameter is related to the sawing equipment used and the thickness of the workpiece being sawed. According to the needs of manufacturing development, multifunctional composite saw blades and high-speed and efficient saw blades will become the mainstream of saw blade development. The application technology of cutting tools and production technology together form two inseparable important aspects of cutting tool products. The back angle of the hard alloy saw blade is generally set at 15 ℃. Brand tool enterprises attach great importance to the application technology of cutting tools. The processing technology level of the manufacturing industry is greatly influenced by the overall level of the saw blade industry, and the development of the manufacturing industry will also promote the development of the saw blade industry.

The commonly used models in wood processing are YG8-YG15. The number after YG represents the percentage of cobalt content. As the cobalt content increases, the alloy's impact toughness and bending strength improve, but its hardness and wear resistance decrease. Therefore, it should be selected according to the actual situation. In the face of complex and ever-changing application scenarios and processing conditions, we need to develop more targeted blades and saw blades. The selection of matrix, 65Mn spring steel has good elasticity and plasticity, material economy, good heat treatment hardenability, low heating temperature, easy deformation, and can be used for saw blades with low cutting requirements. Today, as CNC machine tools have become the mainstream of manufacturing equipment, the saw blade industry shoulders the responsibility of providing key equipment for the manufacturing industry, including CNC saw blades. The sum of the front angle γ, rear angle α, and wedge angle β is equal to 90 ℃. The selection of tooth shape commonly used includes left and right teeth (alternating teeth), flat teeth, stepped flat teeth (high and low teeth), inverted trapezoidal teeth (inverted conical teeth), dovetail teeth (hump teeth), as well as industrial grade three left and one right, left and right flat teeth that are not commonly seen. Carbon tool steel has high carbon content and thermal conductivity, but its hardness and wear resistance sharply decrease when subjected to temperatures of 200 ℃ -250 ℃. It has large heat treatment deformation, poor hardenability, and is prone to cracking after long tempering time. I think everyone should understand the knowledge of saw blades here. These simple and basic knowledge are of great benefit to us readers, and can be said to be common sense. Recommend readers to continue reading related articles on diamond saw blades. The family of saw blades is very large, and we have specifically introduced one of them, diamond saw blades.