Fujikura's new drills approach superhard performance
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The alloy steel used is a special high-alloy dissolved high-speed steel that can uniformly disperse fine carbides. Its material properties help reduce wear and debris at the corners of the drill bit. In this way, materials with a rockwell hardness of more than HB300 can also be processed at a high speed. The service life is longer than that of the powder made of powdered high-speed steel, which can save costs.
On the other hand, the new AG coating has higher heat resistance and wear resistance than the original coating. By using this coating, high-speed performance is improved. When processing carbon steel, a cutting speed of 60m/min and a feed rate of 500mm/min can be achieved.
In addition, the channel shape, the drill shape, and the helix angle have been put into practice to increase the chip dischargeability, separation performance, and rigidity. In this way, it is possible to support various hardness cutting materials such as carbon steel, alloy steel, structural steel and stainless steel.