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As an efficient and durable cutting tool, tungsten carbide circular saw blades are widely used in the processing of wood, aluminum alloy, stainless steel, plastic, stone and other materials. For many users, when faced with a wide variety of saw blades on the market, they often tend to overlook a key parameter-the number of teeth. In fact, the choice of the number of teeth is not only related to the efficiency of sawing, but also affects the quality of cutting and the life of the saw blade. So, how should the number of teeth of tungsten carbide circular saw blades be selected? This article will analyze this issue in depth from multiple angles to help you make the most appropriate choice in practical applications.
1. Definition and importance of the number of teeth
First of all, we need to clarify what "number of teeth" means. The number of teeth refers to the number of cutting teeth on a saw blade. For a tungsten carbide circular saw blade with a certain outer diameter, the more teeth, the smaller the cutting load of a single tooth, and the more delicate the incision; and the fewer teeth, the greater the cutting load of a single tooth, and the faster the cutting speed.
The choice of the number of teeth of the saw blade has a direct impact on the following aspects:
Cutting efficiency: a saw blade with a low number of teeth cuts more material per rotation, and the cutting efficiency is higher.
Cutting quality: Saw blades with high tooth counts can bring smoother cutting surfaces, reduce burrs and chipping.
Chip removal ability: Fewer teeth and larger space between teeth provide better chip removal and avoid tooth blockage.
Saw blade life: Choosing the right number of teeth can reduce unnecessary wear and extend the life of the saw blade.
Therefore, the correct choice of the number of teeth is the key to achieving efficient, fine and economical cutting.
2. Basic principles for selecting the number of teeth
Different processing requirements, material properties and equipment performance will affect the choice of the number of teeth. Here are some common selection principles:
2.1 Selection based on cutting materials
Different materials have different requirements for cutting, which is the most important basis for selecting the number of teeth.
Wood
Cork: Cork is loose and easy to cut. It is suitable for saw blades with low tooth counts (such as 24 teeth and 36 teeth), with fast cutting speed and smooth chip removal.
Hardwood: Hardwood has a hard texture and high fiber density. It is suitable for saw blades with medium and high tooth counts (such as 60 teeth and 80 teeth) to ensure smooth incisions and reduce chipping.
Artificial board/particle board: This type of material has a complex structure and is prone to edge collapse and burrs. Usually, a high-tooth saw blade (such as 80 teeth, 100 teeth) is selected.
Metal
Aluminum: Aluminum and light metals are soft but easy to stick to chips. It is recommended to choose medium-to-high tooth counts (such as 60-100 teeth), and the tooth shape should have a chip groove design.
Stainless steel/steel: Metals are hard and tough, and usually use saw blades with fewer teeth (such as 30-60 teeth) to ensure that each tooth has sufficient cutting force and reduce heat generation.
Plastic/acrylic
Plastic materials are easy to melt or collapse when cutting. A high tooth count can reduce cutting stress and make the cut smoother. Generally, a high-tooth saw blade with more than 80 teeth is selected.
2.2 Selection based on cutting thickness
Cutting thickness is also an important consideration:
Thin materials: It is more appropriate to use a high-tooth saw blade for thin plates or thin pipes, so that the amount of cutting each time is small and the material deformation is reduced.
Thick materials: Thick materials are suitable for low-tooth saw blades to increase the amount of cutting per tooth and cutting efficiency.
2.3 Selection according to cutting quality requirements
If you pursue high efficiency and do not require high surface finish, you can choose a low-tooth saw blade.
If the cutting surface is required to be burr-free and flat, such as for precision woodworking or metal processing, you should choose a high-tooth saw blade.
3. The relationship between the number of teeth and other parameters of the saw blade
The choice of the number of teeth cannot be considered in isolation, but also needs to be combined with other parameters of the saw blade:
3.1 Outer diameter
The larger the outer diameter of the saw blade, the larger the number of teeth can usually be used. For example, the same 24-tooth saw blade, used on a 185mm saw blade and a 350mm saw blade, the cutting effect will be significantly different. Therefore, large-diameter saw blades are often equipped with more teeth to ensure cutting stability.
3.2 Thickness
The thicker the saw blade, the greater the cutting resistance, and the number of teeth should be appropriately reduced to ensure cutting force. On the contrary, thin blades can be used with a high number of teeth to achieve more precise cutting.
3.3 Tooth shape
Tooth shape and number of teeth complement each other. For example, ladder teeth are suitable for aluminum cutting, usually with high number of teeth; staggered teeth are suitable for wood cutting, and the number of teeth can be medium.
4. Requirements for the number of teeth of different equipment
The performance of the equipment matched with the saw blade also needs to be considered. For example:
Handheld circular saw, electric cutting machine: generally limited power, it is recommended to choose a saw blade with low to medium number of teeth to prevent overload.
Table saw, sliding table saw: the equipment has high power and good stability, and a high number of teeth can be selected for fine cutting.
Fully automatic sawing machine: high-precision equipment can use specially customized high-tooth number, thin-sheet saw blades, and the cutting effect is more ideal.
5. Common misunderstandings in the selection of tooth number
Many users are prone to fall into some misunderstandings when choosing saw blades, resulting in poor cutting results and even damage to the saw blades. Common misunderstandings are:
Blind pursuit of high number of teeth: high number of teeth is not omnipotent. Although the incision is smooth, the cutting load is large, the cutting speed is slow, and it is easy to heat up. It is suitable for fine processing, but not for efficient rough processing.
Too few teeth: Low teeth have fast cutting speed, but the cut is rough and the material is easy to tear. It is suitable for occasions with low surface requirements.
Ignore material characteristics: Each material has specific requirements for the number of teeth. Choosing the wrong number of teeth will cause material cracking, heating and even saw blade tooth breakage.
Not considering equipment power: High-tooth saw blades require greater torque drive. If the equipment power is insufficient, it will cause stuck teeth and burnt blades.
Based on the above analysis, when selecting the number of teeth of tungsten carbide circular saw blades, it is recommended to follow the following steps:
Determine the material: First clarify the type, hardness and characteristics of the material being cut.
Clarify the requirements: Is it speed or quality? Is it rough processing or fine processing?
Consider thickness: The thicker the material, the fewer teeth it has, and the thinner the material, the more teeth it has.
Check the equipment: Make sure the equipment can bear the cutting load brought by the selected number of teeth.
Reference experience: Combine the manufacturer's recommendations and your own experience to choose the right number of teeth.
If conditions permit, you can prepare several saw blades with different numbers of teeth, and flexibly replace them according to different processing needs to improve efficiency and quality.
The selection of the number of teeth of a tungsten carbide circular saw blade is not a simple question. It requires comprehensive consideration of many factors such as material properties, processing requirements, and equipment capabilities. Choosing the right number of teeth can not only improve work efficiency, but also significantly improve cutting quality, extend the life of the saw blade, and reduce costs. I hope that the analysis in this article can provide you with valuable references when you actually purchase and use tungsten carbide circular saw blades, helping you to be more handy during the processing process.
As a tungsten carbide circular saw blade enterprise, we are well aware of the importance of tooth number selection to cutting results. Different numbers of teeth correspond to different cutting requirements, which directly affect processing efficiency, incision quality, and saw blade life. Based on many years of experience and rich product lines, we not only provide high-quality tungsten carbide circular saw blades with a variety of tooth numbers, tooth shapes, and specifications, but also tailor-made recommendations based on the customer's material, thickness, and process requirements. The most suitable tooth number solution helps customers complete each cut efficiently and finely. We always aim to enhance customer value and continuously optimize our products and services.
http://www.chinechernmachine.com
chinechernmachine
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