Tool: NC Machine Screw Thread Milling and advantages
NC Machine tool Thread milling method and advantages:
1, thread milling using CNC machining as a method thread, first in Europe and the United States became popular. With the development of CNC machine tools in China, the Chinese have gradually accepted and loved by our customers. Thread milling is a tool with three-axis CNC machining center linkage function and G02 or G03 command spiral interpolation to complete the work thread milling.
2, Thread Milling method has advantages.
1, because the current thread Mills Materials for the cemented carbide manufacturing, processing speed up to 80 ~ 200m/min, while the high-speed steel cone processing speed is only 10 ~ 30m/min, it is suitable for high-speed cutting thread milling, processing and surface finish greatly thread increase. High hardness materials and high temperature alloys, such as titanium, nickel based alloy thread processing has been a relatively difficult problem, mainly because of high speed steel taper thread for processing the material, the Tools Short-lived, but use carbide thread milling cutter for hard materials Comparison of thread processing is the ideal solution. Machinable hardness HRC58 ~ 62. High temperature alloy materials processing thread, thread cutter also showed very superior processing performance and long life beyond the expected. For the same pitch, different diameter threaded hole, with tap processing needs to be completed over the tool, but as with thread milling, you can use a tool. In the tap wear, after processing the thread size is less than tolerance can not continue to use only scrap; wear when thread milling, processing and thread hole size is less than tolerance, the CNC system can make the necessary adjustment tool radius compensation, the can continue processing the size of eligible threads.
2, the same, in order to obtain high-precision screw hole, with thread milling cutter radius of adjustment than the production of high precision is much easier to tap. For small diameter threaded processing, especially high hardness materials and high temperature materials processing thread, the tap is sometimes broken, plug screw holes, and even to parts obsolescence; with thread milling, processing as tool diameter than the hole is small, even if the break is also will not plug thread hole, very easy to remove, will not lead to parts obsolescence;
3, with thread milling, and tap compared to a significant reduction tool cutting force, this thread machining of large diameter, is particularly important to solve the machine loading is too large to drive the normal processing of the issue tap. Thread milling machine clip blade had come out ten years ago, it was also recognized in the processing center on the processing of more than M20 threaded holes, with thread milling compared with the use of tap, can significantly reduce processing costs.
4, in recent years, solid carbide thread milling cutter design and production technology matures, developed a complete range of product sizes. Our carbide thread cutting tools from the world's leading solution providers Israel VARGUS (Vargas) developed by the company in recent years Thread Thread milling cutter series can see the development trend of the overall development of carbide thread milling Knife Millipro series covering M1.6 × 0.35 to the M4; Helicool series covering M5 ~ M19; M IT M multi-blade, high-efficiency machine folder thread cutter series covers the M19 ~ M60 size range; Shellmill series of multi-gear installation, disk-type thread milling cutter cover M60 ~ M300 even larger diameter thread processing. In order to help users thread cutter solutions to applications easier, convenient, and Vargas has also developed a TMGen software systems, and has in the culture, can help users to automatically select the appropriate tool and automatic preparation of CNC thread milling process . For the small-diameter threaded processing applications, enterprises need an aviation document on the processing of aluminum in a 50 M1.6 × 0.35 thread blind hole, the customer problems are: Because it is blind holes, chip removal difficult, easy to break when using tap processing ; as tapping for the last process, such as parts obsolescence, then spent a lot of the parts processing time will be total losses. Finally, the customer selection process M1.6 × 0.35 thread, thread cutter, speed Vc = 25m/min, Speed S = 4900r/min (machine limit), the feed per revolution fz = 0.05mm / r, the actual processing time 4 seconds / thread, with a tool to complete all the 50 parts.
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