Thread milling cutter is a kind of cutting tool for machining threads, mainly used for machining threaded holes and threaded shafts. It has **, precision and stable machining ability, and is widely used in machinery manufacturing, automobile manufacturing, aerospace and other fields.

The main structure of thread milling cutter consists of shank, insert and head. The shank is usually made of cemented carbide material, which is characterised by high strength and good rigidity, and is able to withstand large cutting forces. The insert is used to cut the thread part, usually made of high-speed steel or carbide, with high hardness, high strength and wear resistance. The cutter head is the part that connects the shank and the insert together, and is usually fixed by threaded connection or clamping.

The machining principle of thread milling cutter is to use the rotation and cutting force of the insert to achieve the machining of threads. During the machining process, the cutting edge of the insert constantly touches the workpiece and cuts off the metal material on the workpiece through the rotary movement to form the shape of the thread. Thread milling cutter can adjust the angle and position of the insert according to the need, in order to obtain different shapes and sizes of threads.

The advantages of thread milling cutter are mainly reflected in the following aspects:

1. Processing: thread milling cutter adopts rotary cutting mode, with high-speed, continuous and stable processing ability, can quickly complete the thread processing task, and improve the production efficiency.

2. Precision machining: thread milling cutter has high machining accuracy and surface quality, which can meet the requirements of high-precision thread machining. At the same time, the thread milling cutter can also process a variety of different types and specifications of threads, with great flexibility.

3. Widely used: thread milling cutters are suitable for thread machining of various materials, including steel, aluminium, copper, plastics and so on. Whether it is hard or soft material, thread milling cutter can carry out accurate and stable processing.

4. Economical and practical: the inserts of thread milling cutter can be replaced, which prolongs the service life of the tool and reduces the machining cost. At the same time, the design and manufacturing cost of thread milling cutter is relatively low, which has a high cost performance.

However, thread milling cutters also have some limitations. Firstly, thread milling cutter requires high cutting force during machining, which requires high stability of machining equipment and workpiece. Secondly, the machining speed of thread milling cutter is slow, which cannot meet the demand of mass production. In addition, the insert life of thread milling cutter is short, which needs to be replaced periodically, increasing the maintenance cost.

In summary, thread milling cutter, as a kind of cutting tool for machining threads, has precision and stable machining ability and is widely used in various fields. With the continuous progress of science and technology, the machining speed and accuracy of thread milling cutter will continue to improve, bringing greater convenience and benefits for industrial production.