In aviation component treatment, high speed cutting is being applied in great quantities, basically have the following reasons: (1) decrease for utmost ground weigh and contented and a few otherer requirement, a lot of component, wainscot use " whole makes a way " , go up in chunk semifinished product namely purify surplus, form Bao Bi, the spare parts of fine muscle structure, need purify is many metallic stuff, bring about cutting time to take up the spare parts always produces time proportion very big, because this raises one of ways of productivity,use high speed cutting to machine namely. (2) the structure of aircraft spare parts complex, precision is tall, stiffness of structure of the Bao Bi of the spare parts, fine muscle is poor, the radial cutting force in wanting to reduce treatment as far as possible and heat are out of shape, use high speed cutting to machine ability to satisfy these requirements only. (3) difficult treatment material, be used in great quantities by contemporary aviation product like steel of structure of alloy of nickel radical high temperature, titanium alloy, high strenth, these data strength big, hardness is tall, in impulse withstand, treatment easy sclerosis, cutting temperature tall, cutting tool wears away serious, belong to difficult treatment material. Use very low cutting rate to undertake machining commonly, if use high speed cutting, not only can improve productivity substantially and reduce cutting tool effectively to wear away, improve the exterior quality of the spare parts. Enter 21 centuries, the advanced production technology that competition is promoting intense market to make a technology be forerunner with the machine develops ahead with unprecedented speed, the production of aviation component already also entered the development period that is a characteristic with digitlizing production technology. Advanced aviation product asks aviation spare parts has more superior performance, lower cost and taller environmental protection sex, and treatment craft asks to have quicker treatment to repeat speed, higher reliability, high precision and but repeatability. Traditional cutting tool already cannot satisfy above to ask, tool industry was entered because of this " high accuracy, efficient, high reliability and special change " contemporary cutting tool produces new structure. As the progress of science and technology, we are in advanced production technology to develop period quickly, the promotion of numerical control machine tool applies, reduced the auxiliary time that the spare parts machines greatly, improved productivity greatly. In the total man-hour that aviation spare parts machines, auxiliary time shortens, the time proportion that cutting place holds increases accordingly, want to improve the productivity of the machine tool further, must raise cutting rate substantially, this also is close come a few years the main reason that technology of high speed cutting grows quickly. High speed treatment basically is used the earliest at the treatment Beijing Han Yang of aviation industry light alloy, already became aviation manufacturing industry to raise the treatment efficiency and quality, main avenue that reduces finished cost now. Treatment of high speed cutting has the treatment mechanism that is different from traditional cutting processing technique and applied advantage, it is the change of sense of CNC Machining technology. According to the material of aviation product and structural characteristic, should realize high speed treatment to must be with cutting tool of cutting of advanced high speed assure. Cutting tool of high speed cutting must have good wearability and high strenth tenacity, technology of advanced cutting tool material, good cutting tool coating, reasonable geometrical structure parameter, system of cutting tool of high dynamic balancing, the clamp means of on the safe side, and tall homocentric spent edge precision is waited a moment. CNC MillingCNC Machining