Abstract: In the face of fiercely changing market requirements, manufacturing companies have proposed a PDM-based agile manufacturing system, using PDM to build a unified enterprise database, so that the design reusability in the product development phase is rapidly improved, and the internal standardization of the enterprise is higher. Avoid the traditional design pattern that is designed from scratch every time. Utilizing the modern information technology and the concept of agile manufacturing, we will vigorously improve the level of production technology, management and human resources, so that enterprises can be in an invincible position in the fiercely changing market. introduction Competition makes a product life cycle shorter and shorter, manufacturing technology more and more complex, and production batches less and less. Rigid production lines that have been mass-produced in the past have become increasingly unsuitable for current market demand. Competition requires companies to change their original rigid production model to agile. Faced with the market's individual requirements, companies must quickly restructure to respond to market opportunities and produce products that users need. When it is found that agile reactions cannot be made separately, it is necessary to cooperate with other companies through the factory subnet of the information superhighway. The goal of agile manufacturing is to create a market-competitive manufacturing organization and activity that responds sensitively to user needs. Agile manufacturing system is a dynamic production system. One of its important features is to be able to combine the manufacturing resources of different regions and different enterprises through the information exchange network according to the changes in the market and to produce the market in the quickest way. product. If enterprises want to develop, they can only meet the individual needs of users as much as possible. While the company tries its best to satisfy the users, the company is full of product information, various versions of technical documents, and various types of product BOMs. It only meets the needs of a small number of users, and the information has exploded. How to deal with it. This information has become a major problem that plagues users. As an emerging force in enterprise informationization, PDM has gradually been introduced into modern enterprises. 1 Agile manufacturing The concept of agile manufacturing (AM) was funded by the US Department of Defense in 1991, and was researched by the IACACCA Institute of Lehigh University in collaboration with the US Naval Manufacturing Technology Office. Raised in the Development Strategy. The report believes that the traditional high-volume manufacturing enterprises in the US consumer goods manufacturing, semiconductor industry, automobile industry, and chemical industry should be transformed into more "flexible" enterprises in the next century, otherwise they will lose their advantages in the global market competition. Even with the use of just-in-time production (JIT) and lean production (LP) in high-volume manufacturing companies, the competitive advantage is only reflected in the omnipotent and production scale, as the company remains in the “all-round†way of manufacturing every part and component. Bu, and flexible manufacturing focuses on small-scale, modular combination and cooperative production between enterprises. It has taken advantage of many special enterprises to adapt to the changing market demand, and can seize opportunities in time and respond to the market with high sensitivity. [1] 1.1 Characteristics of agile manufacturing The starting point for agile thinking is based on an analysis of future product and market developments. With the improvement of people's living standards, people's demand and evaluation standards for products will be transferred from the perspective of quality and function to the greatest customer satisfaction, resource protection, pollution control and so on. The overall development trend of the product market will be diversified and personalized from today's standardization and mass to the future. The concept of agile is to improve the resilience of the company and improve its ability to control the future market and the competitive environment. Make it possible to take the initiative and win the competition from the changes. Agile manufacturing requires companies to make the most complete and efficient use of all kinds of information and modern technology. Through the use of concurrent engineering and simulation technology, through the simulation of the entire production process, the first product is the goal of the best product. Thus, the agility of the prototyping process of prototypes and prototypes can be completely eliminated, so that enterprises can win market competition with faster speed, better quality, lower cost and better service. In order to seize the ever-changing market opportunities and quickly complete various production tasks, the production system of an agile manufacturing enterprise must have a high degree of flexibility (flexibility) and recombinability, and establish modular manufacturing units or intelligence according to the similarity of product structure. Processing unit, which can form a corresponding production system according to the needs of production tasks, and perform processing tasks quickly and reliably through intelligent manufacturing process controller, manufacturing process monitor, production process modeling and simulation technology. [2] 1.2 Internal and external conditions for enterprises to achieve agile manufacturing Caspian University is an early and relatively complete research institution for AM research. At present, its definition of agile manufacturing is more authoritative: agile manufacturing is a structure in which each company can develop its own products and implement its own business strategy. The cornerstones that make up this structure are three basic resources: production technology, management, and human resources. Agility stems from the effective integration of these three manufacturing resources. Production technology includes the following features: agile technical support, parallelization of work processes, design for the entire life of the product, the use of strict and universal data exchange standards on broadband networks, to achieve distributed enterprise integration and distributed parallel operations. Management techniques include dynamic organizational structures, virtual enterprises, and plant-wide networks. AM places special emphasis on the decisiveness of people, emphasizing the cultivation of entrepreneurial employees with imaginative, proactive, creative and skilled skills through continuing education and incentives. In order to seize market opportunities, the company must do the following three things: 1 speed up the conversion of design solutions to production; 2 shorten the production lead time; 3 strictly control and reduce material costs. The outside of the enterprise should be satisfied: 1 The enterprise model should be the enterprise alliance of the next-product SMEs in the industry, the election of a key enterprise as the ally, and the other enterprises to become their ally, forming a “one master and more†enterprise. Mode, collaborative process design through the network, effectively shorten the design cycle to meet the requirements of agile manufacturing environment; 2 process resource information between enterprises should be highly integrated and timely shared, with rapid response to the market, can provide a variety of information Description and acquisition methods, can adapt to different agile enterprises and processing objects, support the dynamic reorganization and optimization of manufacturing resources. 2 PDM is an inevitable choice for agile manufacturing Because the customer's personalized requirements will inevitably lead to a large number of different versions of the same type of product data within the enterprise, and the data in different development stages of the same product and the same product family, the consistency of data changes becomes the most urgent. Claim. The emergence of PDM provides a possible technical support for the resolution of this problem. 2.1 The concept of PDM PDM (Product Data Management) technology first appeared in the early 1980s. At that time, with the gradual maturity of CAD technology, the widespread application of CAX technology led to the emergence of large-scale electrical maps, and the number of electronic images tends to increase exponentially. In such a situation, how to effectively manage these documents becomes a problem that enterprises must face. This demand directly led to the emergence of PDM prototype technology. Subsequently, in terms of applications, PDM technology gradually increased product structure management, workflow management and other technologies to form the first generation of PDM. The first generation of PDM mainly includes electronic drawing warehouse, data version control and preliminary product structure management. On this basis, later added product configuration management and other functions. [3] Abstract: In the face of fiercely changing market requirements, manufacturing companies have proposed a PDM-based agile manufacturing system, using PDM to build a unified enterprise database, so that the design reusability in the product development phase is rapidly improved, and the internal standardization of the enterprise is higher. Avoid the traditional design pattern that is designed from scratch every time. Utilizing the modern information technology and the concept of agile manufacturing, we will vigorously improve the level of production technology, management and human resources, so that enterprises can be in an invincible position in the fiercely changing market. introduction Competition makes a product life cycle shorter and shorter, manufacturing technology more and more complex, and production batches less and less. Rigid production lines that have been mass-produced in the past have become increasingly unsuitable for current market demand. Competition requires companies to change their original rigid production model to agile. Faced with the market's individual requirements, companies must quickly restructure to respond to market opportunities and produce products that users need. When it is found that agile reactions cannot be made separately, it is necessary to cooperate with other companies through the factory subnet of the information superhighway. The goal of agile manufacturing is to create a market-competitive manufacturing organization and activity that responds sensitively to user needs. Agile manufacturing system is a dynamic production system. One of its important features is to be able to combine the manufacturing resources of different regions and different enterprises through the information exchange network according to the changes in the market and to produce the market in the quickest way. product. If enterprises want to develop, they can only meet the individual needs of users as much as possible. While the company tries its best to satisfy the users, the company is full of product information, various versions of technical documents, and various types of product BOMs. It only meets the needs of a small number of users, and the information has exploded. How to deal with it. This information has become a major problem that plagues users. As an emerging force in enterprise informationization, PDM has gradually been introduced into modern enterprises. 1 Agile manufacturing The concept of agile manufacturing (AM) was funded by the US Department of Defense in 1991, and was researched by the IACACCA Institute of Lehigh University in collaboration with the US Naval Manufacturing Technology Office. Raised in the Development Strategy. The report believes that the traditional high-volume manufacturing enterprises in the US consumer goods manufacturing, semiconductor industry, automobile industry, and chemical industry should be transformed into more "flexible" enterprises in the next century, otherwise they will lose their advantages in the global market competition. Even with the use of just-in-time production (JIT) and lean production (LP) in high-volume manufacturing companies, the competitive advantage is only reflected in the omnipotent and production scale, as the company remains in the “all-round†way of manufacturing every part and component. Bu, and flexible manufacturing focuses on small-scale, modular combination and cooperative production between enterprises. It has taken advantage of many special enterprises to adapt to the changing market demand, and can seize opportunities in time and respond to the market with high sensitivity. [1] 1.1 Characteristics of agile manufacturing The starting point for agile thinking is based on an analysis of future product and market developments. With the improvement of people's living standards, people's demand and evaluation standards for products will be transferred from the perspective of quality and function to the greatest customer satisfaction, resource protection, pollution control and so on. The overall development trend of the product market will be diversified and personalized from today's standardization and mass to the future. The concept of agile is to improve the resilience of the company and improve its ability to control the future market and the competitive environment. Make it possible to take the initiative and win the competition from the changes. Agile manufacturing requires companies to make the most complete and efficient use of all kinds of information and modern technology. Through the use of concurrent engineering and simulation technology, through the simulation of the entire production process, the first product is the goal of the best product. Thus, the agility of the prototyping process of prototypes and prototypes can be completely eliminated, so that enterprises can win market competition with faster speed, better quality, lower cost and better service. In order to seize the ever-changing market opportunities and quickly complete various production tasks, the production system of an agile manufacturing enterprise must have a high degree of flexibility (flexibility) and recombinability, and establish modular manufacturing units or intelligence according to the similarity of product structure. Processing unit, which can form a corresponding production system according to the needs of production tasks, and perform processing tasks quickly and reliably through intelligent manufacturing process controller, manufacturing process monitor, production process modeling and simulation technology. [2] 1.2 Internal and external conditions for enterprises to achieve agile manufacturing Caspian University is an early and relatively complete research institution for AM research. At present, its definition of agile manufacturing is more authoritative: agile manufacturing is a structure in which each company can develop its own products and implement its own business strategy. The cornerstones that make up this structure are three basic resources: production technology, management, and human resources. Agility stems from the effective integration of these three manufacturing resources. Production technology includes the following features: agile technical support, parallelization of work processes, design for the entire life of the product, the use of strict and universal data exchange standards on broadband networks, to achieve distributed enterprise integration and distributed parallel operations. Management techniques include dynamic organizational structures, virtual enterprises, and plant-wide networks. AM places special emphasis on the decisiveness of people, emphasizing the cultivation of entrepreneurial employees with imaginative, proactive, creative and skilled skills through continuing education and incentives. In order to seize market opportunities, the company must do the following three things: 1 speed up the conversion of design solutions to production; 2 shorten the production lead time; 3 strictly control and reduce material costs. The outside of the enterprise should be satisfied: 1 The enterprise model should be the enterprise alliance of the next-product SMEs in the industry, the election of a key enterprise as the ally, and the other enterprises to become their ally, forming a “one master and more†enterprise. Mode, collaborative process design through the network, effectively shorten the design cycle to meet the requirements of agile manufacturing environment; 2 process resource information between enterprises should be highly integrated and timely shared, with rapid response to the market, can provide a variety of information Description and acquisition methods, can adapt to different agile enterprises and processing objects, support the dynamic reorganization and optimization of manufacturing resources. 2 PDM is an inevitable choice for agile manufacturing Because the customer's personalized requirements will inevitably lead to a large number of different versions of the same type of product data within the enterprise, and the data in different development stages of the same product and the same product family, the consistency of data changes becomes the most urgent. Claim. The emergence of PDM provides a possible technical support for the resolution of this problem. 2.1 The concept of PDM PDM (Product Data Management) technology first appeared in the early 1980s. At that time, with the gradual maturity of CAD technology, the widespread application of CAX technology led to the emergence of large-scale electrical maps, and the number of electronic images tends to increase exponentially. In such a situation, how to effectively manage these documents becomes a problem that enterprises must face. This demand directly led to the emergence of PDM prototype technology. Subsequently, in terms of applications, PDM technology gradually increased product structure management, workflow management and other technologies to form the first generation of PDM. The first generation of PDM mainly includes electronic drawing warehouse, data version control and preliminary product structure management. On this basis, later added product configuration management and other functions. [3] Although the connotation and extension of PDM continue to expand, its core context is relatively clear. The well-known consulting agency CIM data defines PDM as follows: PDM is a technology that manages all product-related information and processes. The Gartner Group defines PDM as follows: PDM is an auxiliary tool for constructing a parallel collaborative environment from product planning to product implementation in the enterprise. A mature PDM system enables all participants to create, communicate and maintain. People with product design intent are free to share all heterogeneous data related to the product throughout the product lifecycle, such as paper and digital documents, CAD files and product structures. 2.2 PDM Features The PDM system contains many basic functions. Enterprises can manage documents electronically, maintaining, acquiring, and modifying drawings and technology-related information quickly, safely, and efficiently. If the enterprise wants to use the PDM system, it must ensure the following functions: Electronic data storage and management; Flexible organization of files; Support for multiple file formats; Document security; Classification and query management; Customization tools; Integration functions; Product management; Product structure Management; workflow management; project management. 3 Building a PDM-based agile manufacturing system PDM has established a product development platform that enables companies to apply the principles of Concurrent Engineering to enable products to be involved in all aspects of the product, such as design, process, manufacturing, procurement, etc. at the design stage. jobs. Designers can select components that meet the requirements and low cost at an early stage. The defects in product design (whether affecting product performance or affecting the manufacturability of the product) can also be detected early, thus reducing the number of engineering changes and shortening. The development time of the products of the factory. 3.1 Building a PDM database to improve design reusability Faced with the high liquidity of information and technical personnel, companies are increasingly feeling that intellectual property is the company's greatest asset. Using the existing intellectual property and acquiring as much intellectual property as possible at a lower cost has become the fundamental aspiration of most companies. From the product development process, designers and companies can recognize that continuous innovation comes from repeated reuse of existing designs. Most product designs are not entirely new in nature, but are merely improvements to previous designs. Proper use of PDM not only saves the manpower and material resources invested in the design process, but also reduces the manpower and material resources invested in the departments involved in the entire life cycle of the components, such as procurement costs, storage costs, test costs, inspection costs, and maintenance. Cost, etc. As the only data source for all product knowledge, PDM provides a wealth of knowledge query means, especially the classification management of components and documents, making PDM truly a business knowledge system that can understand the meaning of data, making PDM far beyond The common file server (File Server or FTP) and the collaborative control field such as VSS become the application system closest to knowledge management. 3.2 Using the PDM database to reduce design costs The cost of more than 70% of the product is determined at the design stage, so the space for cost reduction during the product design phase is also the largest. When designing, whether the designer can use the information system similar to PDM in the design stage, it is convenient to preferentially select the parts with low price and excellent quality in the parts library, which largely determines the optimization times of the whole design process, and of course decides. The design cost and delivery time of the product. At the same time, process and manufacturing engineers can also participate in the design review, put forward their own opinions on the design, make the design more in line with the process and manufacturing requirements, and reduce the processing cost. When design changes, PDM ensures that the collaborative team uses the same version of files and data, avoiding the version corruption caused by simple sharing and reducing the team's waste. 4 Conclusion PDM is an integrated platform built on a relational database. It is a shared database and can span the operating system platform and application software platform. It can realize multi-platform information integration. The combination of agile manufacturing and PDM will inevitably enable modern enterprises to stand. Invincible. references:
Key words: agile manufacturing; product data management; concurrent engineering 
Figure 1 The development of PDM
Key words: agile manufacturing; product data management; concurrent engineering
Figure 1 The development of PDM
The development history of PDM is shown in Figure 1. As shown in Figure 1, the first generation of PDM focuses on the management of engineering information in the design phase, and the disconnect between product design and manufacturing has not been well resolved. Under this background, the second generation of product data management (PDM II) has emerged. the concept of. The PDM II has three core elements: Virtual Product Development Management (VPDM), traditional PDM, and ERP systems. From the perspective of software functions, the products of this era have modules such as workflow management and product life cycle, and the scope of management extends to the enterprise level. From the functions provided by PDM II, it can be seen that the PDM system of this era implies such basic management ideas: through process automation, technicians are placed in the product development pipeline, and product development is pursued through automated processes. Low cost and high efficiency.
[1] Pine J. Mass customization; the new frontier in business competition LM]. Boston: Harvard Business School Press, l993.
[2] General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. GB/Z18727-2002 Enterprise Application Product Data Management (PDM) Implementation Specification [S]. Beijing: China Standard Press, 2002: 1-12.
[3] Yongxin CHEN. Discussion with CAD integration in the course of implementing in enterprises of PDM [J]. Machinery and Electron, 2002 (5): 12-14.
Research on agile manufacturing system based on PDM