【正文】 ne tool manufacturers, usually in the general machine tools on low speed, the feed of the rough and then proceed to heat treatment, the last in the highspeed machine on the halffinished and finished, in improving the accuracy and efficiency at the same time, as far as possible to reduce processing Cost. Highspeed machining tool Highspeed machining tool is the most active one of the important factors, it has a direct impact on the efficiency of processing, manufacturing costs and product processing and accuracy. Tool in highspeed processing to bear high temperature, high pressure, friction, shock and vibration, such as loading, its hardness and wearresistance, strength and toughness, heat resistance, technology and economic performance of the basic highspeed processing performance is the key One of the factors. Highspeed cutting tool technology development speed, the more applications such as diamond (PCD), cubic boron nitride (CBN), ceramic knives, carbide coating, (C) titanium nitride Carbide TIC (N) And so on. CBN has high hardness, abrasion resistance and the extremely good thermal conductivity, and iron group elements between the great inertia, in 1300 ℃ would not have happened significant role in the chemical, also has a good stability. The experiments show that with CBN cutting tool HRC35 ~ 67 hardness of hardened steel can achieve very high speed. Ceramics have good wear resistance and thermal chemical stability, its hardness, toughness below the CBN, can be used for processing hardness of HRC 5 0 parts. Carbide Tool good wear resistance, but the hardness than the lowCBN and ceramics. Coating technology used knives, cutting tools can improve hardness and cutting the rate, for cutting HRC40 ~ 50 in hardness between the workpiece. Can be used to heatresistant alloys, titanium alloys, hightemperature alloy, cast iron, Chungang, aluminum and posite materials of highspeed cutting Cut, the most widely used. Precision machining nonferrous metals or nonmetallic materials, or the choice of polycrystalline diamond Gangcoated tool. Highspeed processing technology Highspeed cutting technology for highspeed machining is the key. Cutting Methods misconduct, will increase wear tool to less than highspeed processing purposes. Only highspeed machine tool and not a good guide technology, highspeed machining equipment can not fully play its role. In highspeed machining, should be chosen with milling, when the milling cutter involvement with the workpiece chip thickness as the greatest, and then gradually decreased. Highspeed machining suitable for shallow depth of cut, cutting depth of not more than mm, to avoid the location of deviation tool to ensure that the geometric precision machining parts. Ensure that the workpiece on the cutting constant load, to get good processing quality. Cutting a single highspeed milling pathcutting mode, try not to interrupt the process and cutting tool path, reducing the involvement tool to cut the number to be relatively stable cutting process. Tool to reduce the rapid change to, in other words when the NC machine tools must cease immediately, or Jiangsu, and then implement the next step. As the machine tool acceleration restrictions, easy to cause a waste of time, and exigency stop or radical move would damage the surface accuracy. In the mold of highspeed finishing, in each Cut, cut to the workpiece, the feed should try to change the direction of a curve or arc adapter, avoid a straight line adapter to maintain the smooth process of cutting. 3 Die in highspeed milling processing of Milling as a highly efficient highspeed cutting of the new method,in Mould Manufacturing has been widely used. Forging links in the regular production model, with EDM cavity to be 12 ~ 15 h, electrodes produced 2 h. Milling after the switch to highspeed, highspeed milling cutter on the hardness of HRC 6 0 hardened tool steel processing. The forging die processing only 3 h20min, improve work efficiency four to five times the processing surface roughness of ~ , fully in line with quality requirements. Highspeed cutting technology is cutting technology one of the major developments, mainly used in automobile industry and die industry, particularly in the processing plex surface, the workpiece itself or knives rigid requirements of the higher processing areas, is a range of advanced processing technology The integration, high efficiency and high quality for the people respected. It not only involves highspeed processing technology, but also including highspeed processing machine tools, numerical control system, highspeed cutting tools and CAD / CAM technology. Dieprocessing technology has been developed in the mold of the manufacturing sector in general, and in my application and the application of the standards have yet to be improved, because of its traditional processing with unparalleled advantages, the future will continue to be an inevitable development of processing technology Direction. 4 Numerical control technology and equipping development trend and countermeasure Equip the engineering level, level of determining the whole national economy of the modernized degree and modernized degree of industry, numerical control technology is it develop new developing new hightech industry and most advanced industry to equip (such as information technology and his industry, biotechnology and his industry, aviation, spaceflight, etc. national defense industry) last technology and getting more basic most equipment. Marx has ever said the differences of different economic times, do not lie in what is produced, and lie in how to produce, produce with some means of labor . Manufacturing technology and equipping the most basic means of production that are that the mankind produced the activity, and numerica