The characteristics and applications of extrusion taps.

The rolling tap is a new type of thread cutting tool that processes internal threads based on the principle of metal plastic deformation. The extrusion of internal threads by the extrusion tap is a chipless processing technology, which is particularly suitable for copper alloys and aluminum alloys with low strength and good plasticity. It can also be used for tapping materials with low hardness and high plasticity such as stainless steel and low-carbon steel, and has a long service life.

Main features

The surface finish of the thread extruded by the rolling tap is high, the metal fibers of the thread do not break, and a cold-hardened layer is formed on the surface, which can improve the strength and wear resistance of the thread. It fundamentally solves the problem of difficult chip removal in tapping. As there are no chips, it is more conducive to the assembly of threads. It is widely used in the electronics and plastic industries.

Purpose:

It is used for processing common internal threads on nuts or other machine parts (i.e., tapping). Machine taps usually refer to high-speed steel ground taps, which are suitable for tapping on machine tools. Hand taps refer to carbon tool steel or alloy tool steel thread (or cutting thread) taps, which are suitable for manual tapping.