The extrusion tap is a new type of thread cutting tool that processes internal threads by utilizing the principle of metal plastic deformation. The extrusion tap process for internal threads is a chipless manufacturing technique, particularly suitable for copper alloys and aluminum alloys with lower strength and better plasticity, as well as for threading materials like stainless steel and low-carbon steel that are soft and have high plasticity, offering a long service life.

Key Features:

The threads extruded with a thread rolling tap exhibit a high surface finish, with the metal fibers of the thread remaining unbroken and forming a cold-hard layer on the surface, which enhances the thread's strength and wear resistance. It fundamentally solves the difficulty of chip removal during threading, and, being chip-free, it is more conducive to thread assembly. Widely applied in the electronics and plastic industries.

Purpose:

For general internal threading on nuts or other machine parts (i.e., tapping). Machine taps are typically high-speed steel die taps, suitable for tapping on machines; hand taps are carbon or alloy tool steel rolling (or cutting) taps, suitable for manual tapping.