1  milling deep thread tools

Milling deep thread tools is a single thread cutter tooth. The thread cutter knife in general have multiple threads, tool and workpiece machining tooth contact with large area, and large, cutting force and processing thread cutter diameter must be less than thread when aperture. Due to restrictions, diameter of dao, and milling cutter rigid impact cutting tools for single screw thread milling deeper force, easily, appear to influence screw knife, thus generally machining precision of the thread cutter effectively cutting depth about the blade diameter twice. And the use of single thread milling cutter can well depth to overcome the shortcomings. Because of reduced dramatically improve cutting force, thread cutting depth and effective processing cutting depth of blade diameter 3 ~ 4 times.

2 and chamfering functions overall thread cutter

With the function of the overall structure and the common thread milling cutter similar, but the whole thread cutting edge in the root (or end) have special chamfering edge, but also in processing screw thread of the processing. There are three kinds of chamfering machining tools, when the diameter of enough, can use directly chamfering edge Angle, this method ChuDao economic limited processing threaded orifice. When the cutter diameter hours, can use chamfering edge by circular motion to processing. But in using chamfering edge cutting blade root for chamfering processing, should pay attention to screw thread cutting tool part should avoid certain gap, to interference phenomenon. If the thread cutting depth than processing cutting length, the effective tools will be unable to realize the function, so choose tool should guarantee the effective length and thread cutting depth matching.

3 and PuTongJi clamp type screw milling cutter

Machine screw thread clamp type milling cutters are the most common and inexpensive tools, its structure and PuTongJi clamp type milling, by reusable knife and can be easily replaced the blade. If needed, also can be processed awl whorl by processing the awl whorl pole with blades, special dao with multiple threads on the blade, cutting tool helical gears can be a week the machining process, such as a multiple threads with a five 2mm thread cutting cutter tooth, along with a helical processing can produce five screw thread tooth depth 10mm. In order to further improve machining efficiency, can choose the type of thread clamp more blade machine cutters. By increasing the number of cutting edge, can significantly improve the feeding rate, but the distribution of each blade in circumference of radial and axial orientation error will affect the thread of the machining accuracy. As for thread milling machine clip blade precision processing thread unsatisfactory, also can try only a blade. In the selection of thread milling machine clip, should according to the diameter of the thread is processing, depth, and the workpiece material and other factors, try to choose larger diameter (in order to improve the knife tool rigidity) and appropriate blade material. The milling machine, screw thread clamp type processing by the tool rod depth effectively cutting depth. Because of the sword blade length less than pole, thus effectively cutting depth when processing thread depth than blade length need stratification.

4 and ordinary integral thread cutter

Integral thread cutter with solid carbide materials are made, some also adopted the coating. Integral thread cutter compact structure, is suitable for processing, small diameter of thread, Also used for processing the single-piece taper thread cutter thread. Such tools, especially good rigidity with spiral groove in the integral thread milling process, high hardness material can effectively reduce the cutting load, improve production efficiency. The thread cutter is covered with thread cutting edge processing, can finish the whole week helical screw machining processing, no such as machine tool clamp type layer, thus processing efficiency high machining, but the price is relatively expensive.