The technical level and modernization degree of equipment industry determine the level and modernization degree of the whole national economy. Numerical control technology and equipment is the enabling technology and the most basic equipment for developing emerging high-tech industries and cutting-edge industries (such as information technology and its industries, biotechnology and its industries, aviation, aerospace and other national defense industries). Marx once said that "the difference between various economic times lies not in what is produced, but in how it is produced and by what means of labor". Manufacturing technology and equipment are the most basic means of production in human production activities, and numerical control technology is the core technology of advanced manufacturing technology and equipment today. In today's world, numerical control technology is widely used in manufacturing industry, in order to improve the manufacturing capacity and level, and improve the adaptability and competitiveness to the dynamic and changeable market. In addition, the developed countries in the world have also listed CNC technology and equipment as national strategic materials, not only taking significant measures to develop their own CNC technology and industry, but also implementing a blockade and restriction policy on China's "high-precision" CNC key technologies and equipment. In short, vigorously developing advanced manufacturing technology with numerical control technology as the core has become an important way for developed countries in the world to accelerate economic development and improve their comprehensive national strength and national status.
Numerical control technology is a technology that uses digital information to control the movement and working process of machinery. Numerical control equipment is a mechatronic product formed by the infiltration of new technologies represented by numerical control technology into traditional manufacturing and emerging manufacturing, which is called digital equipment. Its technical scope covers many fields: (1) mechanical manufacturing technology; (2) Information processing, processing and transmission technology; (3) automatic control technology; (4) Servo drive technology; (5) sensor technology; (6) Software technology, etc.
1 development trend of numerical control technology
The application of numerical control technology has not only brought revolutionary changes to the traditional manufacturing industry, making the manufacturing industry a symbol of industrialization, but also played an increasingly important role in the development of some important industries (IT, automobile, light industry, medical care, etc.). ) With the continuous development of numerical control technology and the continuous expansion of application fields, the digitalization of equipment required by these industries has become a major trend of modern development. Judging from the current development trend of numerical control technology and its equipment in the world, its main research hotspots are as follows.
1. 1 New trend of high-speed and high-precision machining technology and equipment
Efficiency and quality are the main components of advanced manufacturing technology. High-speed and high-precision machining technology can greatly improve efficiency, improve product quality and grade, shorten production cycle and improve market competitiveness. Therefore, Japan Advanced Technology Research Association listed it as one of the five major technologies of modern manufacturing, and CIRP identified it as one of the central research directions in 2 1 century.
In the field of automobile industry, the production cycle of 300,000 cars per year is 40 seconds, and multi-variety processing is one of the key problems that automobile equipment must solve. In the aerospace field, most of the machined parts are thin-walled ribs with poor stiffness, and the materials are aluminum or aluminum alloy. Only under the condition of high cutting speed and small cutting force can these ribs and walls be machined. Recently, large-scale components such as wings and fuselage are manufactured by hollowing out large-scale integral aluminum alloy blanks, instead of assembling multiple components through numerous rivets and screws, so that the strength, stiffness and reliability of the components are improved. All these require high speed, high precision and high flexibility for processing equipment.
According to EMO200 1, the feed speed of high-speed machining center can reach 80m/min or even higher, and the idling speed can reach about 100m/min. At present, many automobile factories in the world, including Shanghai General Motors Corporation in China, have partially replaced modular machine tools with production lines composed of high-speed machining centers. The HyperMach machine tool of Cincinnati, USA has a maximum feed speed of 60m/min, a fast speed of 100m/min, an acceleration of 2g, and a spindle speed of 60 000r/min. It only takes 30 minutes to process a thin-walled aircraft part, while it takes 3 hours to process the same part on a common high-speed milling machine and 8 hours on a common milling machine. The spindle speed and acceleration of the double-spindle lathe produced by German DMG company reach 12* respectively! 000 rpm and 1 g.
In terms of machining accuracy, in recent 10 years, the machining accuracy of ordinary CNC machine tools has increased from 10μm to 5μm, and the precision machining center has increased from 3 ~ 5μ m to 1 ~ 1.5μ m, and the ultra-precision machining accuracy has begun to enter the nanometer level (0.0 1μm).
In terms of reliability, the MTBF value of foreign numerical control devices has reached more than 6 000h, and the MTBF value of servo system has reached more than 30000h, showing very high reliability.
In order to realize high-speed and high-precision machining, motorized spindle, linear motor and other supporting functional components have developed rapidly and their application fields have been further expanded.
1.2 Five-axis linkage machining and compound machining machine tools have developed rapidly.
Using five-axis linkage to process three-dimensional curved parts, the tool can cut the best geometric shape, which not only has high smoothness, but also greatly improves efficiency. Generally speaking, the efficiency of 1 five-axis machine tool can be equivalent to that of two three-axis machine tools, especially when cubic boron nitride, a superhard material milling cutter, is used for high-speed milling hardened steel parts, five-axis machining can bring more benefits than three-axis machining. However, in the past, due to the complex structure of five-axis CNC system and host computer, the programming technology was difficult, and its price was several times higher than that of three-axis CNC machine tools, which restricted the development of five-axis CNC machine tools.
At present, due to the appearance of motorized spindle, the structure of compound spindle head used for 5-axis linkage machining is greatly simplified, its manufacturing difficulty and cost are greatly reduced, and the price gap of CNC system is narrowed. Thus, the development of compound spindle head five-axis linkage machine tool and compound machining machine tool (including five-sided machining machine tool) is promoted.
At EMO200 1 exhibition, NIKO's 5-face machining machine tool adopted the compound spindle head, which can realize the machining of 4 vertical faces and arbitrary angles, so that 5-face machining and 5-axis machining can be realized on the same machine tool, and the machining of inclined planes and inverted cone holes can also be realized. DMUVoution series machining centers exhibited by German DMG company can carry out five-sided machining and five-axis linkage machining under one clamping, and can be directly or indirectly controlled by CNC system or CAD/CAM.
1.3 intelligence, openness and networking have become the main trends in the development of contemporary CNC systems.
The numerical control equipment in 2 1 century will be an intelligent system, which includes all aspects of the numerical control system: in order to pursue the intelligence of machining efficiency and machining quality, such as adaptive control of machining process and automatic generation of process parameters; In order to improve the driving performance and intelligent connection, such as feedforward control, adaptive operation of motor parameters, automatic load identification, automatic selection and self-correction. Simplify programming and simplify the intelligence of operation, such as intelligent automatic programming and intelligent man-machine interface; There are also intelligent diagnosis, intelligent monitoring, convenient system diagnosis and maintenance.
In order to solve the problems existing in closed traditional numerical control system and industrial production numerical control application software. At present, many countries are studying open CNC systems, such as NGC (Next Generation Workstation/Machine Tool Control) in the United States, OSACA (Open System Structure of Control in Automation System) in Europe, Osec (Open System Environment of Controller) in Japan, ONC (Open CNC System) in China, etc. The openness of CNC system has become the future of CNC system. The so-called open CNC system means that the development of CNC system can be oriented to machine tool manufacturers and end users on a unified operating platform. By changing, adding or reducing structural objects (CNC functions), serialization can be formed, and users' special applications and technical know-how can be easily integrated into the control system, so as to quickly realize open CNC systems of different varieties and grades and form brand-name products with distinctive personality. At present, the architecture specification, communication specification, configuration specification, running platform, CNC system function library and CNC system function software development tools of open CNC system are the core of current research.
Networked numerical control equipment is a new bright spot in the internationally renowned machine tool Expo in recent two years. The networking of CNC equipment will greatly meet the information integration needs of production lines, manufacturing systems and manufacturing enterprises, and it is also the basic unit to realize new manufacturing modes such as agile manufacturing, virtual enterprise and global manufacturing. Some well-known CNC machine tools and CNC system manufacturing companies at home and abroad have introduced related new concepts and prototypes in recent two years, such as "CyberProduction Center" (CPC) exhibited by Mazak Yamazaki at EMO200 1; Daisuke Machine Tool Company of Japan exhibited "IT Plaza" (Information Technology Plaza, referred to as IT Plaza); The open manufacturing environment (OME) displayed by Siemens in Germany reflects the trend of NC machine tool processing towards networking.
1.4 Pay attention to the establishment of new technical standards and specifications.
1.4. 1 code for design and development of numerical control system
As mentioned above, the open CNC system has better universality, flexibility, adaptability and expansibility. The United States, Europe and Japan have successively implemented strategic development plans and studied and formulated open architecture CNC system specifications (OMAC, OSACA and OSEC). The three largest economies in the world have made almost the same scientific plans and specifications in a short time, which indicates the arrival of a new period of change in numerical control technology. In 2000, China also began to study and formulate the standard framework of ONC CNC system in China.
1.4.2 About CNC standards
Numerical control standard is the development trend of manufacturing informatization. In the 50 years after the birth of numerical control technology, information exchange is based on ISO6983 standard, that is, G code and M code are used to describe how to process, and its essential feature is process-oriented. Obviously, it can no longer meet the needs of the rapid development of modern numerical control technology. Therefore, a new numerical control system standard ISO 14649 (Step-NC) is being studied and formulated internationally, aiming at providing a neutral mechanism that can describe the unified data model of the whole product life cycle without depending on a specific system, thus realizing the standardization of product information in the whole manufacturing process and even in various industrial fields.
The appearance of STEP-NC may be a revolution in the field of numerical control technology, which will have a far-reaching impact on the development of numerical control technology and even the whole manufacturing industry. First of all, STEP-NC put forward a brand-new manufacturing concept. In the traditional manufacturing concept, NC machining programs are concentrated on a single computer. Under the new standard, numerical control programs can be published on the Internet, which is the direction of open and networked development of numerical control technology. Secondly, STEP-NC system can greatly reduce the processing drawings (about 75%), programming time (about 35%) and processing time (about 50%).
At present, European and American countries attach great importance to the study of STEP-NC, and Europe initiated the IMS plan of STEP-NC (1999.1.1~ 2001.12.31). Twenty CAD/CAM/CAPP/CNC users, manufacturers and academic institutions from Europe and Japan participated in this project. STEP Tools is an American company and a global developer of data exchange software. He developed a super model for information exchange of CNC machine tools, with the goal of describing all machining processes with unified specifications. At present, this new data exchange format has been verified on the prototype equipped with Siemens, FIDIA and European OSACA-NC numerical control systems.
2. Basic estimation of numerical control technology and its industrial development in China.
China's numerical control technology started from 1958, and the development course of nearly 50 years can be roughly divided into three stages: the first stage is from 1958 to 1979, that is, the closed development stage. At present, the development of numerical control technology is relatively slow due to the technical blockade of foreign countries and the limitation of basic conditions in China. The second stage is in the Sixth Five-Year Plan, the Seventh Five-Year Plan and the early Eighth Five-Year Plan, that is, the stage of introducing technology, digesting and absorbing, and initially establishing a localization system. At this stage, due to the reform and opening up and the attention of the state, as well as the improvement of R&D environment and international environment, China's numerical control technology research and development and product localization have made great progress. The third stage is the late Eighth Five-Year Plan and the Ninth Five-Year Plan, that is, industrialization research and market competition. At present, the industrialization of domestic CNC equipment in China has made substantial progress. At the end of the Ninth Five-Year Plan, the domestic market share of domestic CNC machine tools reached 50%, and the domestic CNC system (popular type) also reached 10%.
Looking at the development of numerical control technology in China in the past 50 years, especially after four five-year plans, the following achievements have been made in general.
A laid the foundation for the development of numerical control technology and basically mastered modern numerical control technology. At present, China has basically mastered the basic technology of CNC system, servo drive, CNC mainframe, special plane and its accessories, most of which have the foundation of commercial development, and some technologies have been commercialized and industrialized.
B. the numerical control industrial base was initially formed. On the basis of tackling key problems and commercialization of some technologies, CNC system manufacturers with mass production capacity such as Huazhong CNC and Aerospace CNC have been established. Servo system and servo motor manufacturers such as Lanzhou Motor Factory and Huazhong CNC, as well as CNC host manufacturers such as Beijing No.1 Machine Tool Factory and Jinan No.1 Machine Tool Factory. These factories have basically formed the numerical control industrial base in China.
Established a basic team of CNC research, development and management personnel.
Although great progress has been made in the R&D and industrialization of numerical control technology, we should also clearly realize that the R&D of high-end numerical control technology in China, especially the technical level of industrialization, is still far from the actual demand in China. Although the development speed of China is very fast in the vertical direction, the horizontal ratio (compared with foreign countries) has a gap not only in the technical level, but also in the development speed in some aspects, that is, the gap in the technical level of some high-tech CNC equipment tends to expand. The international estimate of China's numerical control technology level and industrialization level is roughly as follows.
A from the technical level, it is about 10 ~ 15 years behind the advanced foreign level, and it is even bigger from the high-tech point of view.
B industrialization level, low market share and small variety coverage, which has not yet formed large-scale production; The specialized production level and complete set capacity of functional parts are low; The appearance quality is poor; The reliability is not high and the degree of commercialization is insufficient; Domestic CNC system has not yet established its own brand effect, and the user's confidence is insufficient.
C. In terms of sustainable development ability, the research, development and engineering ability of NC technology before competition is weak; The application field of numerical control technology has not been greatly expanded; The research and formulation of relevant standards and norms is relatively lagging behind.
The main reasons for the above gap are as follows.
A. cognition. Insufficient understanding of the arduousness, complexity and long-term nature of the domestic CNC industry process; Insufficient estimation of market irregularities, foreign blockade and strangulation, and institutional difficulties; Insufficient analysis of the application level and ability of numerical control technology in China.
B. System aspect. Pay more attention to the problem of NC industrialization from the technical point of view, and pay less attention to the problem of NC industrialization from the perspective of system and industrial chain; There is no complete high-quality supporting system, perfect training and service network and other supporting systems
C. mechanism. Poor mechanism leads to brain drain, which restricts the innovation of technology, technical route and products and the effective implementation of planning, which is often ideal and difficult to implement.
D. technical aspects. The independent innovation ability of enterprises in technology is not strong, and the engineering ability of core technologies is not strong. The standard of machine tools is backward and low, and the research on the new standard of CNC system is not enough.
3 China numerical control technology and strategic thinking of industrialization development.
3. 1 Strategic considerations
China is a big manufacturing country, so we should try our best to accept the front-end transfer rather than the back-end transfer in the world industrial transfer, that is, master the advanced manufacturing core technology, otherwise our manufacturing industry will be further hollowed out in the new round of international industrial restructuring. At the cost of resources, environment and market, we may only get the international "processing center" and "assembly center" in the new economic structure of the world, rather than the manufacturing center position with core technologies, which will seriously affect the development process of China's modern manufacturing industry.
We should pay attention to numerical control technology and industrial problems from the perspective of national security strategy. First of all, from the perspective of social security, as the manufacturing industry has the largest employment population in China, developing the manufacturing industry can not only improve people's living standards, but also ease the employment pressure in China and ensure social stability. Secondly, from the perspective of national defense security, western developed countries list high-tech CNC products as national strategic materials and impose embargoes and restrictions on China. Toshiba Incident and Cox Report are the best examples.
3.2 Development strategy
Starting from China's basic national conditions, guided by the national strategic demand and the national economic market demand, and aiming at improving the comprehensive competitiveness and industrialization level of China's manufacturing equipment industry, the key technologies that can lead the development and upgrading of China's manufacturing equipment industry at the beginning of 2 1 century, as well as supporting technologies and supporting technologies that support the industrialization development, are selected as research and development contents to realize the leap-forward development of China's manufacturing equipment industry.
Emphasis on market demand-oriented, that is, focusing on CNC end products, the whole machine (such as CNC lathes, milling machines, high-speed and high-precision CNC machine tools, typical digital machinery, key equipment in key industries, etc.). ) has promoted the development of the numerical control industry. Focus on solving the reliability and production scale of CNC system and related functional components (digital servo system and motor, high-speed motorized spindle system and new equipment accessories, etc.). ). Without scale, there would be no products with high reliability; Without scale, there will be no competitive products at low prices; Of course, it is hard to have a bright future without the numerical control equipment of China scale.
In the research and development of high-tech equipment, we should emphasize the close combination of production, learning, research and end users, take "making, using and selling" as the goal, and carry out key research according to the will of the country to solve the urgent needs of the country.
In the aspect of pre-competition CNC technology, it emphasizes innovation and research and development of technologies and products with independent intellectual property rights, which lays the foundation for the sustainable development of CNC industry, equipment manufacturing industry and even the whole manufacturing industry in China.
References:
[1] cmtba industrial development department. CIMT200 1 Tourism [J]. World Manufacturing Technology and Equipment Market, 200 1 (3): 18-20.
[2] Liang Xuan, Zhou Yanyou. New Trends of Machine Tool Technology Development [J]. World Manufacturing Technology and Equipment Market, 200 1 (3): 2 1-28.
Cmtba numerical control system branch. CIMT 200/KOOC-0/Tourism [J]. World Manufacturing Technology and Equipment Market, 200/KOOC-0/(5):/KOOC-0/3-/KOOC-0/7.
Yang, Li Dongru, He, et al? 2 1 century CNC machine tool technology development strategy research [M]. Beijing: National Machinery Industry Bureau, 2000.
Strategic Thinking on Informatization of Manufacturing Industry in China
With China's entry into WTO and economic globalization, China is becoming the center of world manufacturing. China's manufacturing enterprises are facing more intense international and domestic market competition. How to quickly improve the core competitiveness of enterprises is very important, that is, to speed up the informatization process of enterprises. As the core of national economy and social informatization, manufacturing informatization has always been highly valued by our government. The Ministry of Science and Technology has officially started the major project of manufacturing informatization, and will invest 800 million yuan to vigorously promote the research and application demonstration project of key technologies of manufacturing informatization. From the mid-1980s, when enterprises began to apply CAD software, to the 1990s, when China implemented CAD application engineering, and then to the widespread application of financial software, Chinese manufacturing enterprises have gone through nearly 20 years on the road of informationization, and gained a lot of experience and lessons. This paper will deeply analyze the deep-seated strategic problems of China manufacturing enterprises in the process of informatization, so as to help manufacturing enterprises avoid detours on the road of informatization, and make information technology truly serve enterprises and become the driving force for their development. 2. The basic elements of manufacturing information value chain are national and local authorities, manufacturing enterprises, consulting service enterprises, system software suppliers, manufacturing application software suppliers, computer and peripheral suppliers, network product suppliers, channels and agents, and software and system integrators. Every basic element of manufacturing information value chain is interrelated, interactive and influential. Problems in each link may lead to the failure of manufacturing information engineering. Figure 1 manufacturing information value chain 1. National and local authorities are managers and promoters of manufacturing informatization projects, and their responsibilities are: 1) responsible for macro guidance and management of national and local informatization work. 2) Responsible for formulating policies, implementing projects and plans, and focusing on supporting and demonstrating the development of information application projects. 3) Be responsible for the promotion of advanced information technology. 4) Responsible for establishing and maintaining a fair market order and competition mechanism to ensure that all basic elements can achieve a win-win situation. 2. The manufacturing enterprise is the final customer and the main body of informatization, and all other elements serve this customer. Every manufacturing enterprise needs to choose personalized information solutions according to its own industry, scale, development stage and management system. Enterprises should pay attention to the following issues if they want to implement informatization projects well: 1) Enterprise leaders must establish a basic understanding of informatization and realize that informatization is a tool and a means that needs to be used by us to serve the development of enterprises. 2) Informatization is the chief project, and enterprise leaders must take it as the strategic task of enterprise development and work hard. 3) Informatization is a complex system engineering, and enterprises must scientifically manage informatization as a long-term phased implementation project. Before the implementation of the project, it is necessary to plan the problems to be solved, the objectives of each stage, the personnel organization, the expenses and the assessment standards of the informatization project. In the process of implementation, it is necessary to monitor, evaluate and analyze the implementation results of each stage. The successful implementation of information engineering, which is related to the life and death of enterprises, must meet three basic conditions for the success of the project, namely, implementation period, implementation cost and implementation effect. 4) Any innovation that tries to improve efficiency and reduce costs will always reduce efficiency and increase costs at the beginning. It takes a long time for enterprises to adapt to this big system before they can integrate innovation into enterprises, and information engineering is no exception. Therefore, manufacturing enterprises should have an objective and rational understanding of the difficulties and problems in the process of informatization, and enterprise leaders should dare to take prepared risks. 5) The key of information engineering is that enterprises can find out their own needs by consulting service providers or software companies. Information software is actually the carrier of enterprise management ideas and concepts. If the management ideas and concepts contained in the software conflict with the manufacturing enterprises, information engineering will not be successful. Therefore, enterprises need a team of management talents who can not only understand management, but also clearly describe the management mode and information needs of their own enterprises and communicate and cooperate with consulting companies or software companies. 6) Since software is a tool, there must be people who can skillfully use this tool. Therefore, enterprises need to cultivate a group of applied talents who can master software skillfully. 7) With the development of technology, the application platform of software becomes more and more complex. Therefore, enterprises need professionals who are proficient in computer hardware, network and database maintenance to ensure the normal operation of the system. In foreign countries, more and more enterprises outsource this kind of work to professional software services and integrators. 8) Information construction needs to consume considerable funds. Therefore, enterprises should fully consider the channels and ways to obtain funds, do a good job in budget and cost control, and avoid information projects giving up halfway because of financial problems. 3. The consulting service enterprise is the hub of manufacturing informatization, and its duty is: 1) to help enterprises diagnose and analyze the informatization demand and formulate the overall informatization plan of manufacturing enterprises. 2) Help enterprises choose, implement and supervise the integration scheme of information software, hardware and system. 3) Help enterprises to cultivate multi-level information talents. 4) Continuously track and study the development trend of technology, market, products and services in the field of manufacturing informatization, conduct in-depth investigation and study, and recommend the most suitable informatization solutions for manufacturing enterprises. 4. The manufacturing software enterprise is a tool manufacturer of manufacturing informatization, and its duty is: 1) to provide software products that can meet the functional requirements of the manufacturing enterprise, run safely and reliably on the computer and network platform of the enterprise, and integrate with other application software. 2) Software products should be advanced, practical, reliable, compatible, open, easy to learn and use. 3) Provide installation, training and service of software products for manufacturing industry. Among them, services include software implementation, software upgrade, customized development and solving problems in applications. 5. Software services and integrators are the bridge of manufacturing informatization, and their responsibilities are: 1) helping enterprises to develop customized information software, train and upgrade their systems. 2) Help enterprises realize information integration of different application systems. 3) Help enterprises to maintain the whole information system and solve the problems of information backup and information security. 6. Computer and peripheral suppliers, network product suppliers and system software suppliers constitute the basic platform of manufacturing informatization, which has nothing to do with specific applications. The platform must ensure the reliability, security and compatibility of the whole information system. 7. Channels and agents are responsible for helping product suppliers with product sales, services and technical support. Most hardware and network suppliers and system software suppliers mainly focus on distribution and channel sales; Manufacturing application software companies mainly focus on direct sales and independently engage in product sales, service and technical support. 3. The key factors that determine the success or failure of the manufacturing informatization project All links in the manufacturing informatization value chain are the factors that determine the success or failure of the informatization project, among which government departments, consulting service systems and manufacturing software enterprises are the most important factors. First of all, the influence of government departments on the whole value chain is enormous, and the policies and guidance formulated by government departments are crucial to the success of manufacturing information engineering. During the Ninth Five-Year Plan period, the CAD application project put forward by the Ministry of Science and Technology conformed to the informatization situation of enterprises at that time, which led a large number of enterprises to get rid of drawing boards and use CAD software, so that enterprises really tasted the sweetness of informatization and stimulated the enthusiasm of enterprises to deepen the application of informatization. On the other hand, in the process of promoting informatization, some local and industry authorities have adopted some practices such as local protection and industry monopoly in the planned economy era, stipulating that enterprises can only use certain products and software, which is not conducive to the popularization and application of information technology. Secondly, whether consulting service enterprises participate in the implementation of manufacturing informatization projects, the degree and mode of participation are also the key factors leading to the success of informatization. Many manufacturing enterprises, when implementing information engineering, pay more attention to building a network, buying software and hardware, and then buying them after seeing dazzling good functions, but they just don't need enterprises, data formats are incompatible, and excuses are incompatible. Some enterprises have even become "software showrooms" and bought a lot of software, but they are still a mixture, not really "combined" and truly integrated. The reason is that consulting service enterprises are not introduced to conduct careful demand analysis, and there is no overall planning, implementation and integration scheme with practical guiding significance. On the other hand, China's consulting service industry is still in its infancy, and there is still a lack of professional manufacturing information consulting enterprises. Experts, professors and graduate students in colleges and universities are the main force engaged in consulting services. Their advantage is to track and study advanced technologies and development trends at home and abroad, but they often lack practical experience in working in enterprises and implementing projects. Many manufacturing software enterprises not only provide application software for manufacturing enterprises, but also play the role of consulting services. Enterprises often require manufacturing software companies to make information planning for enterprises, and even integrate software and systems. However, because software manufacturing enterprises aim at selling their own software, it is inevitable that old ladies will sell melons, and a few softwares even mislead manufacturing enterprises with some vague and wrong concepts. Therefore, manufacturing informatization calls for professional, independent and neutral consulting service enterprises to formulate reasonable manufacturing informatization solutions from the perspective of enterprises. Wuhan Manufacturing Information Engineering Technology Research Center was established in June 2002. It came into being in the process of deepening the implementation of information engineering in manufacturing industry, and created a new operation mode of government guidance, investment by universities and enterprises, and market operation. Through in-depth research, the Engineering Center is committed to recommending the best and best cost-effective solutions for manufacturing enterprises in different industries, different scales, different systems and different stages of development, so that enterprises can truly enhance their core competitiveness and innovation ability, significantly reduce costs, obtain significant economic and social benefits, and avoid mistakes in information investment. Thirdly, the selection, implementation, customized development and information integration of manufacturing application software are also the key links for the success of manufacturing information engineering. At present, China's manufacturing enterprises have not implemented unified standards. Many enterprises adopt industry standards, even enterprise standards. Even the most standardized product design process has many different requirements, such as the writing method of detailed list. In the subsequent process planning, according to the product and industry characteristics of the enterprise, the demand changes greatly. Some are mainly assembly technology, some are mainly processing technology, and some are mainly welding technology. There are various ways and coding methods for enterprises to generate various lists and reports. The management mode of enterprises is even more different. Some traditional large-scale manufacturing enterprises mainly focus on vertical integration, and have established strict division of labor and internal supply chain within the whole enterprise group, such as FAW. In some areas with developed private economy, such as Zhejiang, Jiangsu and Guangdong, horizontal integration has been established to form external supply chains, such as aluminum products supply chain in Nanhai, Guangdong, motorcycle supply chain in Chongqing and hardware supply chain in Yongkang, Zhejiang. Different enterprises have different production organization methods, product characteristics, marketing methods and procurement methods, forming different management models. Therefore, it is impossible to use a management software to adapt to all enterprises. For process enterprises, such as petroleum, chemical and steel enterprises, the management software used is essentially different from that used in discrete manufacturing. There are many internal management links in manufacturing industry, and there are huge differences. Therefore, the selection of application software, customized development and information integration are very critical. Each application has a different market positioning.