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With the development of CNC machine tools in China,thread milling is gradually accepted and loved by Chinese customers as a way of machining threads with CNC machines.Thread milling is the use of CNC machining centers of the three-axis machine tool linkage and G02 or G03 helical interpolation instructions to complete the thread milling.

Due to the current manufacturing process of the thread milling cutter is cemented carbide,the processing line speed can reach 80-200m / min,the high speed wire taper processing line speed is only 10-30m / min,so the thread milling cutter is suitable for high speed cutting and processing threads.

The surface finish is also dramatically increased.High-hardness materials and high-temperature alloy materials,such as titanium,nickel-based alloy thread processing has been difficult problem,mainly because of high-speed steel taper thread processing of these materials,the tool life is shorter,the use of carbide thread milling knife on the hard material thread processing is the effect of the ideal solution.Machinable hardness HRC58 ~ 62.Thread milling of high-temperature alloy materials,thread milling cutter also showed good processing performance and beyond the expected long time.

For the same pitch,different diameter of the threaded hole,the use of tap processing requires more tools to complete,but if the use of thread milling cutter,you can use a tool.In the tap wear,processing thread size is less than the tolerance can not continue to use,only be scrapped:when the thread cutter wear,processing thread hole size is less than tolerance,the CNC system can make the necessary tool radius compensation adjustment,you can continue.Processed qualified thread size.

In order to obtain high-precision threaded hole,the use of thread milling cutter radius adjustment method,than the production of high-precision taps is much easier.For small diameter thread processing,especially in high-hardness materials and high-temperature thread material processing,the tap sometimes break,plug the threaded hole,even scrap parts;the use of thread milling cutter,because the tool diameter than the processing hole,even if the break isn’t also block the threaded hole,easy to remove and will not lead to scrap parts;

In recent years,the overall solid carbide thread milling cutter design and production technology has gradually matured,developed a complete range of sizes of products.The world famous carbide thread cutter solution provider Israel VARGUS company developed in recent years,the thread milling cutter products can be seen the trend of the development of thread milling,the development of its solid carbide thread milling Mills Millipro series cover M1.6 × 0.35 to M4;Helicool series covers M5 ~ M19;MITM multi-blade,high efficiency folder thread milling cutter covers M19 ~ M60 size range;Shellmill series multi-tooth mounting,Thread milling cutter covering the M60 ~ M300 even larger size large diameter thread.In order to help users to use the thread milling solution to make the application easier and more convenient,the company also developed the TMGen software system and has been Chinese culture,which can help users automatically select the knife and automatically prepare the corresponding thread milling CNC program.For small-diameter threading applications,the airline needs to process 50 M1.6 × 0.35 thread blind holes in one aluminum piece.

The problems encountered by customers are:it is easy to break when using tap;As tapping for the last process,such as scrap parts,then spend a lot of processing time on the parts will be lost.

Finally,the customer selects the thread milling cutter M1.6 × 0.35,thread speed Vc = 25m / min,speed S = 4900r / min (machine limit),the feed per revolution fz = 0.05mm / r,the actual processing time For 4 seconds / thread,with a single tool to complete all 50 pieces.

The use of thread milling compared with the tap,cutting tool cutting sharply reduced,which is particularly important for large-diameter thread,solve the machine load is too large,can not drive the normal processing of tap problem.Machine blade insert thread milling cutter has come out 10 years ago,people also realized that the processing center in the M20 threaded hole,the use of thread milling cutter compared with the tap can significantly reduce the processing costs.

In large-scale power generation,metallurgical equipment processing industry,pumps,valve processing industry,the thread milling cutter solves the problem of processing large diameter threads,as the ideal tool for high efficiency and low cost.Such as a valve parts processing enterprises,they need to process 2 "× 11BSP-30 thread,the material is cast steel,hope to improve the processing efficiency.Through the choice of multiple chip flute,multi blade clamp thread cutter,the use of Vc = 80m / min,S = 850r / min and fz = 0.07mm / r,the processing time is 2min / screw and the life of the blade is 620.The machining efficiency of large diameter thread is effectively improved.

As an advanced tool that has been rapidly developed in recent years,thread milling cutter is being accepted more and more widely by the enterprises, shows excellent processing performance.It has become a powerful weapon for enterprises to reduce the thread processing cost,improve the efficiency and solve the thread processing problem.

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