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As the core component of cutting tools, the material of circular saw blades directly determines the performance, durability and application range of the saw blades. With the continuous advancement of industrial technology, the material of circular saw blades is also constantly evolving. From traditional high-speed steel to modern super-hard alloys, each material has its own unique advantages and limitations. This article will start from the perspective of material, deeply analyze the common material types of circular saw blades, explore which material is more durable, and analyze its performance in different application scenarios.
1. Common types of circular saw blade materials
1.1 High-speed steel circular saw blades
Material characteristics
High-speed steel is a high-performance steel containing alloy elements such as tungsten, molybdenum, chromium, and vanadium. It is characterized by high hardness, good wear resistance, and certain toughness. HSS circular saw blades are usually used to cut materials such as metal, wood, and plastic.
Durability analysis
The durability of high-speed steel circular saw blades is mainly reflected in their wear resistance and impact resistance. Due to its high hardness, it can maintain sharpness for a long time during high-speed cutting. However, the heat resistance of high-speed steel is relatively poor, and it is easy to soften in high temperature environments, resulting in accelerated edge wear.
Applicable scenarios
High-speed steel circular saw blades are suitable for medium and low-intensity cutting tasks, such as cutting thin metal plates, wood, and plastics. For high-intensity continuous cutting tasks, the durability of high-speed steel may not be enough.
1.2 Carbide circular saw blades
Material characteristics
The cutting edge of carbide circular saw blades usually adopts tungsten carbide cutter heads, while the matrix uses steel materials. This combination ensures the hardness of the cutting edge and maintains the toughness of the matrix. Tungsten carbide is a superhard material with a hardness far exceeding that of high-speed steel, and it also has excellent wear resistance and heat resistance.
Durability analysis
The durability of tungsten carbide circular saw blades is significantly higher than that of high-speed steel. Its hardness is close to that of diamond, and it can withstand higher cutting speeds and greater cutting forces. In addition, tungsten carbide has excellent heat resistance and can maintain a high hardness even in high-temperature environments. Therefore, the service life of carbide circular saw blades is usually several times longer than that of high-speed steel.
Applicable scenarios
Carbide circular saw blades are widely used in wood processing, metal cutting, and composite material cutting. Carbide circular saw blades excel in high-intensity industrial cutting tasks in particular.
1.3 Diamond (PCD) circular saw blades
Material characteristics
Diamond is the hardest material in nature, and its hardness is several times that of tungsten carbide. Diamond circular saw blades usually use polycrystalline diamond (PCD) as the cutting edge material, and steel or carbide is used as the matrix.
Durability analysis
Diamond circular saw blades are extremely durable and are particularly suitable for cutting high-hardness materials such as stone, ceramics, and glass. Due to their extremely high hardness, diamond circular saw blades are almost never worn, and their service life far exceeds that of circular saw blades made of other materials. However, diamond circular saw blades have poor toughness and are prone to cracking when impacted.
Applicable scenarios
Diamond circular saw blades are mainly used to cut high-hardness materials such as marble, granite, concrete, and glass. Diamond circular saw blades are less used in wood and metal cutting because of their high cost and insufficient toughness.
1.4 Ceramic circular saw blade
Material characteristics
Ceramic circular saw blades are made of ceramic materials such as alumina and silicon nitride. Ceramic materials have extremely high hardness and heat resistance, but their toughness is poor and they are prone to brittle cracking.
Durability analysis
The durability of ceramic circular saw blades is mainly reflected in their wear resistance and high temperature resistance. In high temperature and high wear environments, ceramic circular saw blades perform better than high-speed steel and cemented carbide. However, due to their greater brittleness, ceramic circular saw blades are not suitable for high-impact cutting tasks.
Applicable scenarios
Ceramic circular saw blades are mainly used to cut high-hardness materials such as ceramic tiles, stones, and composite materials. In metal cutting, ceramic circular saw blades are less used.
1.5 Carbon steel circular saw blades
Material characteristics
Carbon steel is a common steel with low hardness and wear resistance, but it is low in cost and easy to process. Carbon steel circular saw blades are generally used for low-intensity cutting tasks.
Durability analysis
Carbon steel circular saw blades have poor durability, especially in high-intensity and high-speed cutting tasks, the cutting edge is prone to wear and deformation. However, due to its low cost, carbon steel circular saw blades still have a certain market in some low-requirement scenarios.
Applicable scenarios
Carbon steel circular saw blades are mainly used to cut soft materials such as plastics, cork, and thin metal plates. In high-intensity cutting tasks, carbon steel circular saw blades do not perform well.
From the above comparison, it can be seen that diamond circular saw blades perform best in hardness and wear resistance, but their toughness is poor; tungsten carbide circular saw blades perform well in comprehensive performance and are suitable for most high-intensity cutting tasks; high-speed steel and carbon steel circular saw blades are more suitable for low-intensity, low-cost application scenarios.
2. How to choose a more durable circular saw blade?
When choosing a circular saw blade, it is necessary to decide based on the specific cutting task and material properties. Here are some suggestions:
Cutting high-hardness materials: give priority to diamond or ceramic circular saw blades.
Cutting metal and wood: carbide circular saw blades are the best choice.
Low-cost, low-intensity tasks: high-speed steel or carbon steel circular saw blades can be considered.
High-impact tasks: choose high-speed steel or carbide circular saw blades with better toughness.
In addition, factors such as the tooth shape, number of teeth and coating of the circular saw blade need to be considered, which will affect the durability and cutting effect of the saw blade.
The material of the circular saw blade is a key factor in determining its durability. From high-speed steel to diamond, each material has its own unique advantages and limitations. In general, carbide circular saw blades have the best overall performance and are suitable for most high-intensity cutting tasks; diamond circular saw blades perform well when cutting high-hardness materials, but are more expensive and lack toughness; high-speed steel and carbon steel circular saw blades are more suitable for low-intensity, low-cost applications. When choosing a circular saw blade, the most suitable material and model should be selected according to the specific cutting needs and material characteristics to ensure maximum cutting efficiency and service life.
http://www.chinechernmachine.com
DongGuan Chine Chern Machinery Co.,Ltd.
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