For the ball screw hard turning process, Halnn Superhard mainly used the BN-S20 brand full face PCBN inserts in the early stage, and the turning effect of both the ball screw shaft head and the thread part is more obvious.
With the development of new materials, new technologies, and new processes, Halnn Superhard launched the TNMN series of single-sided composite integral full face PCBN inserts again. There is no center hole, and it has both wear resistance and impact toughness, which can meet the needs of rough and fine machining, and is more cost-effective.
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