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Influence of the number of teeth of cemented carbide end mills on machining performance
The number of flutes is selected by the cutting method of the end mill. For example, for groove cutting with the same cutting width and the same tool diameter, a large-capacity chip flute is required.
Release time:
2022-11-11
The number of flutes is selected by the cutting method of the end mill. For example, for groove cutting with the same cutting width and the same tool diameter, a large-capacity chip flute is required. Usually, a tool with 2 flutes is used. For side cutting with a small cutting width, choose Multi-edge end mills that prioritize tool rigidity.
With the increase in the number of cutting edges, the rigidity and machining efficiency (tool life) can be improved, but at the same time, the discharge of chips will become weaker. However, the appropriate selection of cutting conditions can overcome the weakness of chip discharge, and multi-edge cutting is the direction of future development.
In cutting processing, the contact between the blade and the workpiece is prone to a high temperature of 800-1200 degrees. The cutting heat generated by the high temperature is transmitted to the blade, and the tool wear occurs and is transmitted to the workpiece. The workpiece is deformed and the chips take away the cutting heat. We expect. At the same time, the friction between the chip and the rake face of the tool causes the temperature to rise, resulting in crater wear on the rake face (expressed in depth). On the other hand, the friction heat between the flank face and the workpiece rises sharply, causing the flank face Wear. The coating not only maintains the strength and toughness of the tool body, but also maintains a higher surface hardness and wear resistance, and at the same time, maintains a high red hardness.
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