Basic knowledge of CNC tools

The hardness of the cutting part of the tool must be higher than the hardness of the workpiece material. The higher the hardness of the tool material, the better its abrasion resistance. The hardness of the tool material at room temperature should be above HRC62.


Enough strength and toughness


The tools are under great pressure during cutting. Sometimes they work under impact and vibration conditions. To make the tool do not collapse and break, the tool material must have sufficient strength and toughness. Generally, the strength of the bending strength should indicate the strength of the tool material. Use the impact value to represent the toughness of the tool material.


Higher heat resistance


Thermal resistance refers to the performance of hardness, abrasion resistance, strength, and toughness at high temperature at high temperature. It is the main indicator for measuring the cutting performance of the tool material. This performance is also called the red hardness of the tool material.


Good thermal conductivity


The greater the thermal conductivity of the tool material, the more calories from the tools, which is conducive to reducing the cutting temperature of the tool and increasing the durability of the tool.


Good craftsmanship


In order to facilitate the processing and manufacturing of the tool, the tool materials are required to have good process performance, such as forging, rolling, welding, cutting and grinding, thermal treatment characteristics and high temperature plastic deformation performance of tool materials. Materials also require good sintering and stressful performance.


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