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Methods to reduce wear during tool processing
2021-06-29
Precautions for tool processing
When using ball nose end mill, it should be noted that the cutting speed near the center is extremely small, close to "zero", so the cutting conditions are relatively harsh.
Therefore, if possible, there should be an inclination angle between the axis of the milling cutter and the normal direction of the workpiece. According to experiments, when the included angle is about 15°, the life of the tool will reach a maximum value.
When milling the internal cavity, when the tool is fed to the corner, the radial force will increase sharply due to the sudden increase of the cutting wrap angle, and the peak value will reach about 170% of the normal cutting value. Therefore, we recommend The so-called "trochoidal cutting" is implemented at various locations, so that a sudden increase in cutting force can be avoided.
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