The thread processing method was mass-produced after the British invented the screw-rod lathe, screw dies, and taps. Later, the processing methods of screw thread became more, such as thread turning, thread milling, thread rolling, etc.
Screw thread turning

The tools for thread turning are cost-effective and the machining techniques are easy to master. However, the processing efficiency is relatively low, and it can only be applied to the processing of threaded parts in small and medium batches.

Thread milling is a new machining method after thread turning.

Advantages of screw thread milling

Thread milling is suitable for machining special-shaped parts that are not suitable for rotation, and most of them are used in machine tools and compound machining machines with milling functions. It can not only ensure high-precision thread tolerances but also complete the machining of parts in one clamping.

Disadvantages of screw thread milling

The processing efficiency is low, the processing cost is high, and it is not suitable for the processing of batch parts.

Thread rolling

Rolling processing is suitable for the production of large batches of standard parts. Roll forming has some specific advantages over cutting threads. It is a processing method that uses a roll-forming die to plastically deform the workpiece to obtain a thread. According to the different rolling dies, thread rolling can be divided into two types: thread rolling plate processing and thread rolling roller processing.