Tungsten carbide ladder-shaped-thread to be processed, to start with, the processing time of the rectangle, just to try to make the size of the processing to eight points. A thread of a rectangular feed only about 0.05 ~ 0.1mm. But deep trench, it will take a lot of time. While machining the teeth side of the feed 0.05mm, there will be an angle of 30 degrees.
Scale readout = 0.05mm * cot15 degree
= 3,732 ≈ 0.2mm * 0.05mm
It will produce four times the original amount of chips. In other words, the same chip, because the thread lead angle, the movement of the cutting edge length becomes longer, the chip will be thin.
Tungsten carbide ladder-shaped-thread is mainly used for feeding device, the thread is basically for a softer non-ferrous metals. Especially brass, bronze, chips can be well drained from the outset with the form tool linear feed can be.
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