Main uses and common problems of thread milling cutters


A thread mill is one of the threading tools. The method of machining threads with a thread mill is called thread milling. Thread milling cutters are currently widely used in various departments such as automobile manufacturing, aerospace, medical treatment, and machining. Here are summaries and answers to frequently asked questions about the use of thread milling cutters.

1. How to distinguish thread milling cutter and chip tap?

If it is a single-tooth thread mill, it is easy to distinguish; if it is a multi-tooth, it is also easier. The most direct way is to look at the top teeth. Taps are helical teeth, and thread mills are circular teeth.

2. Does the tooth depth of the thread milling cutter affect the thread accuracy?

In fact, the detection of thread accuracy is usually done with a stop gauge. The main factors affecting the stop gauge are the tooth pitch and the opening width of the root. Generally, the tooth depth does not affect the detection of the pass and stop gauge. When actually milling the thread, adjusting the radius of the milling cutter's circle seems to only affect the pass gauge and not the stop gauge. That is to say, minor changes in major and minor diameters only affect the general gauge, not the stop gauge. .

3. Is the thread milling cutter carbide steel?

Yes, the current thread milling cutter is made of cemented carbide, and the machining line speed can reach 80-200m/min, while the machining line speed of the high-speed steel tap is only 10-30m/min, so the thread milling cutter is suitable for high-speed cutting. The surface finish of the machined threads is also greatly improved.