Extrusion taps are an advanced chipless thread forming tool with high thread accuracy after processing. They are widely used in precision industries such as automotive, aerospace, and electronics. Because the metal fiber of the extrusion thread is continuous, its strength can be increased by about 30% compared to the cutting thread. And because of the cold hardening phenomenon caused by extrusion, the hardness of the thread surface can be increased by 40% -50% compared with the core, and the wear resistance of the thread surface is also greatly improved.
OPT Tool Co., Ltd.'s extrusion molding has no chip interference, so the accuracy of thread processing can be as high as 4H, and the surface roughness of the thread can reach Ra0.3. Shenzhen OPT Cutting Tools Co., Ltd. generally uses materials with greater plasticity, such as aluminum alloy, low carbon steel, and ordinary stainless steel. Our extrusion taps have more stringent requirements on the size of the tap hole. A suitable tapped hole is particularly important for extruding a tap.Extrusion taps are processed by plastic threads, so the size of the bottom hole will have a greater impact on the shape of the thread, so high-precision bottom hole management is required.
Our company can improve the lubrication performance as much as possible under the allowed conditions. This is not only to reduce the torque and improve the tap life, but also to improve the quality of the thread surface. In addition, the screw hole should not be too deep when using an extruded tap. The effective depth of the screw should be controlled within 1.5 times the diameter. Deep hole tapping requires an extrusion tap with a lubricating groove.
