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What Is Tap
Oct 14, 2017

What is tap?

As a tool for machining internal thread taps, according to the shape can be divided into straight edge and screw tap tap, in accordance with the use of the environment can be divided into hand taps and machine taps, made in accordance with the specifications, and can be divided into metric, British tap, according to the origin can be divided into domestic and imported tap tap. Tap is the most important tool for manufacturing operators to process thread.

A tool for machining internal threads, with grooves along the axis. It's called a screw attack. The tap is divided into straight slot tap, spiral groove tap and spiral tap (tip tap) according to its shape. Straight groove taps are easy to process with low precision and large output. It is generally used for thread processing of ordinary lathe, drilling machine and tapping machine, and the cutting speed is slow. Spiral groove taps are usually used in drilling holes of NC machining center. The processing speed is fast, the precision is high, the chip removal is better and the neutral is good. There is a chip groove at the front of the screw tap, which is used for the machining of the through hole. Most of the taps provided by the tool factory are coated taps, and the service life and cutting performance of the taps are greatly improved compared with the uncoated taps. The cutting load distribution of taps with unequal diameter design is reasonable, the machining quality is high, but the manufacturing cost is also high. Trapezoidal thread taps are usually designed with unequal diameters.


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