Self tapping screw thread rolling die manufacturers tell you that self-tapping screws are divided into pointed-tail self-tapping screws and flat-tail self-tapping screws, so how are self-tapping screws produced? There are mainly the following processing techniques. a bit:

1. Thread cutting of self-tapping screws (generally refers to the method of machining threads on workpieces with forming tools or abrasive tools, mainly including turning, milling, tapping thread grinding, grinding and whirling cutting, etc.).
2. Self-tapping screw thread turning (for turning the thread on the lathe, a forming turning tool or a thread comb can be used, and a forming turning tool is used to turn the thread. The self tapping screw thread rolling die manufacturer tells you that due to the simple structure of the tool, it is a single piece and a small batch. The common method of producing self-tapping screw threaded workpieces is to use a thread comb to turn threads, which has high production efficiency, but the tool structure is complex, which is suitable for turning fine-toothed short-threaded workpieces in medium and large-scale production).
3. Self-tapping screw thread milling (milling with a disc milling cutter or a comb milling cutter on a thread milling machine. The self tapping screw thread rolling die manufacturer tells you that the disc milling cutter is mainly used for milling screw, worm and other workpieces. trapezoidal external thread).
4. Self-tapping screw thread grinding (mainly used for processing precision screw threads of hardened workpieces on a thread grinding machine, and can be divided into single-line grinding wheel and multi-line grinding wheel grinding according to the different cross-sectional shapes of the grinding wheel).
5. Self-tapping screw thread grinding (use cast iron and other soft materials to make a nut-type or screw-type self-tapping screw thread grinding tool, and perform forward and reverse rotation grinding on the part of the machined self-tapping screw thread with pitch error on the workpiece , subject to high pitch accuracy).
6. Tapping and thread rolling (Self tapping screw thread rolling die manufacturers tell you that tapping is to use relative torque to screw the tap into the pre-drilled bottom hole on the workpiece to process the internal thread. The external thread is cut on the pipe workpiece, and the machining accuracy of tapping or threading depends on the accuracy of the tap or die).
7. Self-tapping screw thread rolling (a processing method of plastically deforming the workpiece with a forming rolling die to obtain self-tapping screw threads, self-tapping screw thread rolling is generally used in the thread rolling machine thread rolling machine fire attachment self-tapping opening and closing Self tapping screw thread rolling die manufacturers tell you that it is suitable for mass production of standard fasteners and external threads of other threaded connections).