In car component treatment, the steel with the oily cutting of very difficult water-solubility of use blame chloric sex when need finds to be able to come true to be machined before the extruding tap of treatment. Tap is the tool that uses when the whorl inside treatment, can divide it is two kinds big, the cutting tap that has cutting blade namely, and without cutting blade, and use plasticity to be out of shape come the extruding tap of the whorl inside treatment. Extruding tap all the time since be produced IT component or car component by the quantity the welcome that turns a client. With car component treatment is exemple, use machine tool transforms gradually from the special machine change that has every process apart can have a few process to be on a machine tool, the implementation when such clients also can begin to consider to machine nobody are changed and little person is changed. Subsequently and come, a lot of clients also put forward, the oil of blame water-solubility cutting that when the hope will be machined before, uses changes the water-solubility cutting that is blame chloric sex is oily, make whole treatment process more environmental protection. Additional, nobody turn set back and little person changes one of main factors of treatment, when using cutting tap namely, because add what man-hour arises to cut the problem that bits often produces, cut bits to twine for instance go up in the tool (graph 1) . To prevent the happening of this kind of problem, very much now client more deflection adds man-hour not to produce the extruding tap that cuts bits at using. But, mostly old way is in commonly used when machining car component tool 6mm above. And the extruding tap that old way exceeds 10mm is in steel difficulty of the treatment when adding is very great, when use water-solubility cutting is oily, the life that cannot ensure tap is very good reachs cutting rate. Graph 1 twine the extruding tap S-XPF with the newest OSG cutting bits in tap, can solve these problems, this is the very difficult use blame when one can come true to be machined before the steel of oil of cutting of chloric sex water-solubility the extruding tap of treatment. Place of as above face says, the feature of extruding tap is do not have cutting blade and be out of shape with plasticity come the whorl inside treatment. The advantage of use extruding tap has two sides, it is to make attacking do not arise when thread machining cut bits, the 2 torque folding caustic that are tap itself are tall. But meanwhile, also have the item that needs an attention below: Because be to use plasticity to be out of shape,machine, add workpiece so the material that be confined to extends a gender to had been compared; Must be had by treatment face lubricate adequately and cooling environment; What the aperture end its follows cutting tap is different; The precision management of bottom outlet is more difficult; Form inside what whorl appearance and cutting tap treatment go out is different (graph 2) . Use plasticity to be out of shape form inside whorl trail ministry is had cave appearance. This is the place of tooth form form that gives with treatment of use cutting tap is different, if cave,meeting influence arrives inside the word of whorl character cannot use extruding tap; Compare with cutting tap photograph, attack whorl torque very big. Double of extruding tap. Accordingly, when use cutting tap, the capacity such as machine tool, knife handle already was close to the word of utmost, the machine tool may stop to move. Graph 2 inside some premise want when the S-XPF of different extruding tap of whorl tooth form uses the extruding tap previously, be opposite for instance steel treatment must have lubricate adequately (oil of cutting of use blame water-solubility) . If use water-solubility cutting oil to wait, perhaps be in lubricant did not use below so good case, cannot develop its function adequately. Specific for, in use water-solubility cutting oily circumstance falls, the extruding tap that if make,in order to goes to, the calorific amount when attacking thread machining is very large, make tap wear away, the more serious problem such as sodden tooth produces possibly also on whorl inside. Be aimed at this problem, s-XPF extruding tap has the following kinds of corresponding processing: Whorl ministry designs maximize; Shorten whorl ministry length; Use the mother material that holds a wear-resisting caustic sex and tenacity concurrently; The finishing of use V coating. If the following two things are reached, also can get follow-up function. It is to restrain the hair when attacking thread machining to heat up a circumstance above all, the calorific quantity when use S-XPF is restrained somewhat. Because of the characteristic reason of the thermograph, outer ministry falls to determine very hard for oily circumstance. So this one result reachs below the case that uses the toothpaste that attack oil. It is next attack whorl torque reduce reduce, outer ministry offers oil (water-solubility cutting is oily) SCM440 is machined with the cutting speed of 15m/min below the circumstance (when 30HRC, with equal cutting condition treatment, the torque of S-XPF is compared before the product is reduced 40% . The rigidity that imposes workpiece and function discuss below. What need attention quite here is tone qualitative steel (25HRC ～ 35HRC) . With extruding tap undertakes treatment is more difficult below the case that using oil of cutting of water-solubility of blame chloric sex before. But treatment can go on wheels after use S-XPF. And, machining low to life of the cutting tool when tall carbon steel very good also. The amplification of the expectation that thread machining uses cutting tool and S-XPF suitable scope henceforth, can increasing to environmental protection and the demand that high speed machines. The MQL that already a lot of clients hope to attack whorl now is changed (half dry type is machined) . S-XPF extruding tap has calorific amount the feature with low torque of little, treatment, so it also can the craft that corresponding MQL machines. Plant sex oily agent is used in use MQL (50cc/h) interior falls for oily circumstance, machine S50C. It is better to there are a lot of clients to think to machine speed to jump over low life before. But actually, the life of the cutting tool when machining speed 20m/min is best, pay no attention to too quickly perhaps too slow want. The design of the product can cause such appearance with use environment. But the make choice of of optimal cutting data is one of in developing a process tasks that use a tool in MQL. Additional, change in the MQL of extruding tap, can taller and taller to the requirement of bottom outlet quality. For stabler attack thread machining, also continue to develop packet of draw together bottom outlet to use treatment tool (broach) , the hope can offer omnibus treatment technology to the client. CNC MillingCNC Machining