【正文】 一般認(rèn)為， 1 臺 5 軸聯(lián)動機(jī)床的效率 可以等于 2 臺 3 軸聯(lián)動機(jī)床，特別是使用立方氮化硼等超硬材料銑刀進(jìn)行高速銑削淬硬鋼零件時， 5 軸聯(lián)動加工可比 3 軸聯(lián)動加工發(fā)揮更高的效益。 在加工精度方面，近 10 年來，普通級數(shù)控機(jī)床的加工精度已由 10μm 提高到 5μm ，精密級加工中心則從 3～5μm ，提高到 1～ ，并且超精密加工精度已開始進(jìn)入納米級 () 。 從 EMO2021 展會情況來看，高速加工中心進(jìn)給速度可達(dá) 80m/min，甚至更高，空運(yùn)行速度可達(dá) 100m/min 左右。為此日本先端技術(shù)研究會將其列為 5 大現(xiàn)代制造技術(shù)之一，國際生產(chǎn)工程學(xué)會（ CIRP）將其確定為 21世紀(jì)的中心研究方向之一。 1 數(shù)控技術(shù)的發(fā)展趨勢 數(shù)控技術(shù)的應(yīng)用不但給傳統(tǒng)制造業(yè)帶來了革命性的變化，使制造業(yè)成為工業(yè)化的象征，而且隨著數(shù)控技術(shù)的不斷發(fā)展和應(yīng)用領(lǐng)域的擴(kuò)大，他對國計(jì)民生的一些重要行業(yè)（ IT、汽車、輕工、醫(yī)療等）的發(fā)展起著越來越重要的作用，因?yàn)檫@ 些行業(yè)所需裝備的數(shù)字化已是現(xiàn)代發(fā)展的大趨勢。當(dāng)今世界各國制造業(yè)廣泛采用數(shù)控技術(shù)，以提高制造能力和水平，提高對動態(tài)多變市場的適應(yīng)能力和競爭能力。 Certainly, it is difficult finally to have the day to hold up head that there is no Chinese numerical control equipment of scale . In equipping researching and developing highgrade , precision and advancedly , should emphasize the production, learning and research and close bination of end user, regard obtaining, using, selling as the goal, tackle key problems according to the national will, in order to solve the needing badly of the country. The technology of numerical control, emphasized innovation, put emphasis on researching and developing technology and products with independent intellectual property right before the petition, establish the foundation for the numerical control industry of our country , sustainable development of the equipment manufacture and even the whole manufacturing industry. References: [1]China machine tool industrial association Development department of the trade. CIMT2021 tour [J ]. The manufacturing technology in the world and market of equipment, 2021 (3): 1820. [2]The roof beam trains a k ing to declare , the distribution is helped. New tendency [J ] of the technical development of the lathe . The manufacturing technology in the world and market of equipment, 2021 (3): 2128. [3]China machine tool industrial association Systematic branch of numerical control. CIMT2021 tour [J ]. The manufacturing technology in the world and market of equipment, 2021 (5): 1317. [4]Yang XueTong, Li DongRu, He WenLi ,etc.? Numerical control lathe technical development strategic research [M ] from now to century. Beijing: State Bureau of Machinery Industries, 2021. 數(shù)控技術(shù)的發(fā)展趨勢 摘要：簡要介紹了當(dāng)今世界數(shù)控技術(shù)及裝備發(fā)展的趨勢及我國數(shù)控裝備技術(shù)發(fā)展和產(chǎn)業(yè)化的現(xiàn) 狀，在此基礎(chǔ)上討論了在我國加入 WTO 和對外開放進(jìn)一步深化的新環(huán)境下，發(fā)展我國數(shù)控技術(shù)及裝備、提高我國制造業(yè)信息化水平和國際競爭能力的重要性，并從戰(zhàn)略和策略兩個層面提出了發(fā)展我國數(shù)控技術(shù)及裝備的幾點(diǎn)看法。39。 It is not enough to analyze to technological application level and ability of numerical control of our country. . Pay close attention to numerical control industrialization many in the issue , consider numerical control industrialization little in the issue synthetically in terms of the systematic one , industry chain in terms of technology。s own brand effect yet in domestic numerical control system, users have insufficient confidence. the ability of sustainable development, to petition numerical control research and development of technology, engineered ability weaker。 Appearance quality is relatively poor。t meet demands of highspeed development of the technology of modern numerical control more and more already. For this reason, studying and making a kind of new CNC system standard ISO14649 (STEPNC ) in the world, its purpose is offering a kind of neutral mechanism not depending on the concrete system , can describe the unified data model in whole lifespan of the products , thus realize the whole manufacture process, and even the standardization of each industrial field product information. The appear ance of STEPNC may be a revolution of the technical field of the numerical control, on development and even the whole manufacturing industry of the technology of numerical control , will exert a farreaching influence. First of all, STEPNC puts forward a kind of brandnew manufacture idea , in the traditional manufacture idea, NC processes the procedures to all concentrate on single puter. Under the new standard, NC procedure can be dispersed on Inter, this is exactly a direction of open , worked development of technology of numerical control. Secondly, STEPNC numerical control system also can reduce , process (about 75% ) drawing , process procedure work out (about 35% ) time and process (about 50% ) time greatly. At present, AmericanEuropean countries pay much attention to the research of STEPNC, Europe initiates IMS plan ( ) of STEPNC. 20 CAD/CAM/CAPP/CNC users , manufacturers and academic anizations from Europe and Japan participated in this plan. STEP Tools Company of . is a developer of the data interchange software of manufacturing industry in the global range, he has already developed and accused of the super model (Super Model ) of information exchange of machine tooling by counting, its goal is to describe all processing courses with the unified norm. Such new data interchange form has already been verified in allocating the SIEMENS , FIDIA and European OSACANC numerical control at present. 2 pairs of basic estimations of technology and industry development of numerical control of our country The technology of numerical control of our country started in 1958, the development course in the past 50 years can roughly be divided into 3 stages: The first stage is from 1958 to 1979, . closed developing stage. In this stages, technology of foreign countries blockade and basic restriction of terms of our country, the development of the technology of numerical control is paratively slow. During Sixth FiveYear Plan Period , the Seventh FiveYear Plan Period of the country in second stage and earlier stage in the Eighth FiveYear Plan Period , introduce technology , digest and assimilate, the stage of establishing the system of production domesticization arisesing tentatively. At this stage , because of reform and openingup and national attention , and study the improvement of the development environment and international environment, research , development and all making considerable pro