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The requirement for the hardness of tool materials is usually relatively high, with the minimum requirement being higher than the material hardness of the workpiece being processed. The same principle applies to slitting machine blades. However, it's not just about hardness, cutting tools must have excellent performance to "kill" a way out in the market and win the favor of consumers. High performance requirements for cutting tools include wear resistance, heat resistance, thermal conductivity, and toughness. The following is a specific explanation.
High wear resistance and heat resistance. The wear resistance of tool materials refers to their ability to resist wear. Generally speaking, the higher the hardness of tool materials, the better their wear resistance; Heat resistance is usually measured by the ability of materials to maintain high hardness at high temperatures, that is, thermal hardening. The better the heat resistance, the stronger the tool material's ability to resist deformation and wear during cutting.
Good thermal conductivity. The thermal conductivity of tool materials is represented by thermal conductivity, which is high and has good thermal conductivity. The heat generated during cutting is easily conducted out, thereby reducing the temperature of the cutting part of the tool, reducing tool wear, and improving the tool material's ability to withstand thermal shock and cracking
Sufficient strength and toughness. The material of the cutting part of the tool must withstand significant cutting and impact forces during cutting, therefore the tool material must have sufficient strength and toughness.
Good craftsmanship. The tool material should have good machinability, including forging, welding, cutting, heat treatment, grindability, etc., to facilitate the manufacturing of round blades.
Economic viability. Cheap price, easy to promote and use, and achieve good benefits.
