PCBN cutting tool most agree with the treatment of high speed cutting of the material such as hard steel of cast-iron, temper by dipping in water. The relation that by cutting of PCBN cutting tool face of the knife after the cutting tool when the cast-iron hard steel that reach temper by dipping in water wears away to be apart from with cutting can see: After cutting speed exceeds certain limit, cutting rate is higher, face of the knife after PCBN cutting tool wears away rate is minorrer instead, namely the life of the cutting tool below high speed cutting is tall instead, this one characteristic suits treatment of cutting of contemporary high speed especially. The stuff of optimal cutting tool of processing technique of strong voice cutting is right hardware of temper by dipping in water (hardness HRC55 above) finish machining, use grinding to machine a method to finish normally, reach lathe as progress of cutting tool material however (especially numerical control lathe) machine precision rise, the final treatment that replaces grinding to complete a part with strong voice cutting already made a new finish machining approach, this kind of technique that grinds with car generation has the following advantage: (1) can improve treatment flexible, broke through the limitation of emery wheel grinding, can process a geometrical form through changing cutting blade to reach knife kind the workpiece of each different; (2) the environmental protection problem in cutting treatment is increasingly severe, the waste liquid that grinding treatment produces and litter more and more be handled hard and keep clear of, and harmful to human body, and strong voice cutting need not add cooling fluid, the sense is great; (3) cutting efficiency is tall, handling time is short, installation cost charge is small, can reduce finished cost; (4) 20% what excise the energy that identical bulk place wastes to be grinding only, the heat in metal cutting that arises accordingly is less, treatment surface causes burn and tiny flaw not easily, maintain the integrality of workpiece surface function easily; (5) below case of rate of same metal purify, strong voice cutting relatively grinding saves the sources of energy. The cutting tool data that is used at strong voice cutting normally has razor blade of coating of pottery and porcelain, TiC and stuff of PCBN cutting tool, but should be in higher rate (1000m/min above) next undertaking strong voice turning, PCBN is breed of material of optimal cutting tool. If batch of fork is covered in car gear-box synchronized (material is 20CrMnTi, after hardness collects generation of car of in order to to grind for treatment of HRC58 ～ 62) , efficiency raises 4 times above, finished cost reduces the 1/3 ～ 1/2 that is original grinding craft. The stuff of ideal cutting tool that undertakes cutting machines craft working because the reason of economy and environmental protection respect, in last few years method of dry cutting treatment already became the key in mechanical production domain to study a task. We look above all wet the issue that because use cutting fluid to bring,cuts craft: (1) expose the condition of cutting fluid mist that be in air or creates by heat in metal cutting in cutting treatment for a long time to volatilize, pollute health of handlers of environment, harm easily, cutting fluid is medium sulfur, chloric wait for additive the harm is greater, the influence machines exterior quality; The segregation frost with alkaline significant secondary action of left flesh coming back which brand good eyelash creams pop chart of embellish skin frost is thin face what sufficient ministry nurses good Zun Xuan good of which man perfume (2) the use influence finished cost of cutting fluid, according to statistic, 15% what cutting fluid holds manufacturing cost, and cutting tool charge occupies 3% ～ only 4% ; (3) the leakage of cutting fluid, spill over can pollute an environment, easy happening accident of safe, quality; (4) the transmission of cutting fluid, reclaim, filter wait for device to reach its to uphold charge taller, raised manufacturing cost. As a result of above reason, dry cutting machined craft to there already was the application that comparative in western industry developed country. Recommend by American Makino company " red crescent moon " (RedCrescent) is dry cut craft, can develop the cutting property of cutting tool adequately already, with wet cut photograph comparing to be able to improve productivity greatly again. Because cutting rate is very high,its mechanism is, the quantity of heat of generation gathers at cutting tool forehead, make material achieves red hot status near cutting area, succumb intensity drops, achieve the result that improves cutting efficiency then. Using red crescent moon to do the premise requirement of cutting craft is to be below taller cutting temperature, strength of the data that be cut has drop apparently, become easy cutting, and the intensity of cutting tool material should have better red rigid and thermal stability below same position, the wearability with have better even and fight caking property. Apply to do the cutting tool material that cuts craft to hard alloy of pottery and porcelain, cermet, coating and material of PCBN cutting tool are waited a moment, but for red rigid and thermal stability, PCBN material is to suit to do the cutting tool stuff that cuts craft most, and have afore-mentioned advantages as a result of material of PCBN cutting tool, more comfortable the treatment of dry type cutting that falls at high speed condition, the contrast that with grey mouth of cutting of PCBN cutting tool two kinds of circumstances issue cast-iron dry cutting and wet cutting can see: PCBN cuts a condition in high speed doing, specific humidity cutting has taller cutting tool life. Suit to machine PCBN cutting tool to have very tall hardness and wearability at automation treatment and difficult treatment material, for long treatment gives high accuracy part (dimension is dispersive the gender is small) , reduce the frequency that change a knife and cutting tool to wear away greatly the time that compensation stays machine place to cost. Accordingly, very agree with the treatment facilities with numerical control machine tool and automation higher rate, and can make the tall efficiency of equipment gets sufficient play. The field uses in difficult treatment material, PCBN cutting tool also showed its outstanding performance, be like exterior gush solder (besmear) the treatment of material, with treatment of other material cutting tool, cutting tool life is extremely low, also cannot use grinding method treatment, and PCBN is the cutting tool stuff that only fits; Be like again, the tall alloy wear-resisting that uses in equipment of oil power station is cast-iron, use PCBN cutting tool relatively hard alloy cutting tool improves cutting efficiency 4 times above, odd cutting tool cost drops for original 1/5. The cutting of the agglomeration material such as additional explicit hard alloy machines a respect, PCBN cutting tool also showed very good cutting performance. CNC Milling