1、毕业设计外文文献翻译 1 Numerical control technology and equipping development trend and countermeasure Zhao Chang-ming Liu Wang-ju (CNC Machining Process and equipment, 2002,China) Abstract:Equip the engineering level, level of determining the whole national economy of the modernized degree and modernized deg
2、ree of industry, numerical control technology is it develop new developing new high-tech 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 m
3、ore basic most equipment. Numerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms
4、 to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, Keywords: Numerical ControlTechnology, Equipment, industry Equip the engineering level, level of determining the whole national economy of the modernized degree and modernized degree of indus
5、try, numerical control technology is it develop new developing new high-tech 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 mo
6、st 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 n
7、umerical control technology is nowadays advanced manufacturing technology and equips the most central technology. Nowadays the manufacturing industry all around the world adopts numerical control technology extensively, in order to improve manufacturing capacity and level, improve the adaptive capac
8、ity and competitive power to the changeable market of the trends. In addition every industrially developed country in the world also classifies the technology and 毕业设计外文文献翻译 2 numerical control equipment of numerical control as the strategic materials of the country, not merely take the great measur
9、e to develop ones own numerical control technology and industry, and implement blockading and restrictive policy to our country in view of high-grade, precision and advanced key technology of numerical control and equipping. In a word, develop the advanced manufacturing technology taking numerical c
10、ontrol technology as the core and already become every world developed country and accelerate economic development in a more cost-effective manner, important way to improve the overall national strength and national position. Numerical control technology is the technology controlled to mechanical mo
11、vement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing i
12、ndustry, namely the so-called digitization is equipped, its technological range covers a lot of fields: (1)Mechanical manufacturing technology； (2)Information processing, processing, transmission technology； (3)Automatic control technology； (4)Servo drive technology； (5)Technology of the sensor； (6)
13、Software engineering ,etc. Development trend of a numerical control technology The application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the industrialized symbol , and with the con
14、stant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the peoples livelihood of his plays a more and more important role, because the dig
15、itization that these trades needed to equip has already been the main trend of modern development. Numerical control technology in the world at present and equipping the development trend to see, there is the following several respect 1- in its main research focus. 1 A high-speed, high finish machin
16、ing technology and new trend equipped The efficiency, quality are subjavanufacturing technology. High-speed, high 毕业设计外文文献翻译 3 finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market competitive pow
17、er. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP) to confirm it as the centre in the 21st century and study one of the directions in international production engineering. I n the field of car i
18、ndustry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of； In the fields of aviation and aerospace industry, spare parts of its processing are mostly the thin wall and thin muscle, rigi
19、dity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles, walls. Adopt large-scale whole aluminium alloy method that blank pay empty make the wing recently, such large-scale parts as the fusel
20、age ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equipping the demand which has proposed high-speed, high precise and high flexibili
21、ty. According to EMO2001 exhibition situation, high-speed machining center is it give speed can reach 80m/min is even high , air transport competent speed can up to 100m/min to be about to enter. A lot of automobile factories in the world at present, including Shanghai General Motors Corporation of
22、our country, have already adopted and substituted and made the lathe up with the production line part that the high-speed machining center makes up. HyperMach lathe of U.S.A. CINCINNATI Company enters to nearly biggest 60m/min of speed, it is 100m/min to be fast, the acceleration reaches 2g, the rot
23、ational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, the ordinary milling machine is being processed to need 8h； The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 120000r/mm and 1g. In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5m up to from 10m already, accurate grades of
