PDM technology reachs his to be analysed in the application of automobile manufacturing industry

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How does 1 foreword enterprise manage a large number of electrons to change data to be searched quickly from which, the information that visits place to need, it is a when the enterprise should solve serious problem. Product data manages (ProductDataManagement, the occurrence of PDM) offerred a kind of reliable way for this. The promotion application of foreign PDM technology enhanced the competition ability of manufacturing industry product apparently, obtained very remarkable economic benefits. The effect of executive PDM of our country enterprise is not ideal in recent years, the understanding to PDM concept and its application still are put in a few errors. The technology of PDM of basic idea 　 of 2 　 PDM appears the earliest in 20 centuries 80 time. Its original intention is to solve the administrative problem of documentation of many engineering design, expand the product develops 3 fields of the process gradually next: The detailed list of administrative;3) material that the automation of administrative; 2) of 1) blueprint appearance and electronic documentation is versed in Cheng changes sheet (the management of BOM) . So far, still do not have a complete and exact definition to PDM. Is D1Burdick in " does C IM strategy analyse a report " in be PDM definition: ? DM is to be company design and production to build environment of art of a collateral product (by supply, engineering design, make, purchase, sale and market, client is formed) crucial technology. A mature PDM system can make all participation found, the communication, person that defends design intent is shared freely in whole information lifecycle and transmit all dynamic data related to the product " . PDM is with software the technology is a foundation, it is core with the product, realize unifinication of pair of data related the product, process, resource the technology that compositive managing. PDM makes clear fixed position to create a company to face, it is administrative core with the product, it is the 3 gist white that runs message with data, process and resource. The product structure that PDM has two masterstroke of information management are a static state and dynamic products plan technological process, all news organizations and resource management spread out around products plan, this also is PDM system has do not run a system at other information, be like a management information system (system of M IS) , stock management (system of MRP) , project management (the crucial place of ProjectManagement) . If the relation between the data in PDM system, process, resource and product pursues 1 is shown. The system of architecture 　 PDM of system of 3 　 PDM is system of software of a management, face product complete lifecycle, it is core with the product, organization of activity of the product data in developing products plan the process, design, personnel and relevant design environment unite an organization to rise. PDM archetypal system is with the technology of distributed data processing below network environment prop up, use client computer / server (Client/Server) architecture and object-oriented (the design method of Object Oriented) , provide rock-bottom service and support to develop network and module of data manipulation interface, supply product data organization and administrative function and part of tool of user front software, realize the information management of product complete lifecycle, flow of cooperative control work and project make progress, one is built to run paralell inside enterprise limits the environment of product development efforts that change. The architecture of PDM system is shown 2 times like the graph. Is PDM architecture cent 4: ? > cowardly of Kang of show off hesitating does not have? of Ы Gou Li to offer alternant graph interface to the user, all sorts of the browser that includes graphic representation to change, menu, dialog box, use at supporting the input output of jussive operation and information. Is the 2nd: of core function layer? The core function of software of system of Jie DM (management of function of documentation management function, product construction management, spare parts classification and retrieve function, job to shed administrative function, user to run function and system compositive function) . Is three-layer: of frame core layer? Enlighten the core structure of all sorts of Zheng DM functions and framework, because the object of PDM system manages frame to have screen different form the character of operating system, network, database, when the user is using all sorts of functions of PDM system, the vitrification that realized the vitrification operation that logarithm occupies, application is called and the vitrification management of the process. Is the 4th: of systematic support layer? Read housing to be proud the support of DM of low settleclear makes the same score Pi of Song of  of stool of impossible of grave of instrument having enough stage, object of supportive PDM system is in the data manipulation function that provides through relation database the management of rock-bottom database. The function of 4 　 PDM is current, all sorts of commercial PDM software products very much the same, cardinal principle has the following and main function (if pursue,3 are shown) . 4-1 electron storehouse and documentation management to most enterprise, the gather into one of computer science department that needs to use a lot of differring and different computer software come to what what need inside whole lifecycle produce a product all sorts of data, and all of these computer science department and software are built likely still go up in different network system. Below this kind of circumstance, how to ensure the seasonable sex of these data and validity, and make these data can get inside whole industry share adequately, make sure data spares even at the same time intended or innocently destroy, these are the problems that urgent need solves. The storage that the electronic storehouse of PDM and documentation management provided data of compose of different of bisect cloth pattern, retrieve and govern a function. In PDM, the visit of data is completely transparent to the user, the user need not care the specific place that electronic data deposits. The safe mechanism of electronic storehouse makes the administrator can define different role to gift the data visit limits of authority with these different roles and limits, make through giving user allocation corresponding role data can by the user of accredit is gotten or already revised. In the meantime, in PDM the issuance of electronic data and change must pass what define beforehand to examine and approve become effective of the ability after flow, always pass the accurate information that examine and approve with respect to what make the user gets so. 4-2 product structure and structure of configuration management product and configuration management are one of core functions of PDM, use this function to be able to realize pair of product structures and configuration information and stock detailed account (Bill OfMaterial, the management of BOM) . The user can use the figure that PDM provides to change an interface to be examined to product structure and edit. In PDM system, 0, the component concerns to be risen by the organization according to the assembly between them, the user can define all sorts of products data and 0, component correlation rises, form the complete description of pair of product structures finally, traditional BOM also can use PDM to be generated automatically. Inside the enterprise, the product configuration of same product is in different department is not same, because this PDM system still was offerred,organize the function of product structure by product view. Through building corresponding product view, the form that the different branch of the enterprise can need by its will have an organization to product structure. And when the product structural happening is changed when, the product structure view that can adopt network will analyse and command the influence that changes pair of whole industries. 4-3 lifecycle (the job flows) the dynamic definition course that the lifecycle management module that manages 　 PDM runs product data, include macroscopical course among them (product lifecycle) with all sorts of microcosmic processes (the examination like the design flow) . Include to withhold and dog to the management of product lifecycle the product is made from development of notional design, product, production till the whole process that halts production all medium histories are recorded, and the processing measure that definition product must pass from a condition changes another position. Of each basic processing measure that the administrator can adopt pair of product data set structural products plan or change technological process, these basic processing measure include to assign the task, examine and approve and inform relevant personnel to wait. The construction of flow is to build be opposite on the analytic result of all sorts of business flow in the enterprise. Interface of 4-4 compositive development the circumstance differ in thousands ways of each enterprise, the demand of the user also is varied, without which kind of PDM the system can get used to the circumstance of all enterprises, this must be had with respect to requirement PDM system powerful client is changed and develop ability 2 times. A lot of PDM products offerred development kit 2 times now, PDM carries out personnel or the user can use this kind of kit to undertake is aimed at an enterprise the custom-built job of particular case. The PDM 　 car in 5 automobiles manufacturing industry creates a company is omnibus enterprise, of all kinds to car product data has effective government, raise a car to produce the information level of management of manufacturer, implement car design and production collateral project thereby, this is the crucial place that at present the car creates a company. Explain from the following respects now. Management of treatment of 5-1 spare parts is clear and truckload with 0, the foundation that the corresponding relation between the component is manufacturing management. Master newest treatment circumstance to press need, pass information in time to concerned branch. For this, can weave product structure is cultivated, the hierarchy of the tree states the assembly of the spare parts is ordinal, corresponding node is spare parts, combination or assembly, can convey through node 0, the concerned information of the component. What manufacturing industry of automobile of 5-2 equipment management uses the investment of equipment and tool to increase quickly along with the amplification of enterprise dimensions, breed is increasingly various also. As equipment incline to large change, combination is changed with automation, the tooling that uses in production process also incline to is large change, diversification, complication with efficient change, the value of equipment and tool also increases apparently. Meanwhile, facility for transporting and examine equipment place holds proportion ceaseless heighten, the importance of equipment management more be taken seriously. It is with tool management exemple, every time when car remodel or craft are fluctuant, answer to plan to cooperate cheek by jowl with craft plan, equipment, make a detailed tool plan, develop a tool design, purchase, inventory management, make, repair the business activity that waits for a series of day-to-day management. 5-3 quality management produces a many rejected product possibly below a lot of production conditions, must adopt precautionary measures to this. Analyse all sorts of elements of influence quality seriously with production phase in the plan phase of the product, for example, automobile body is online detect the processing of data, monitor, the control figure that monitors data from the line handles an analysis, in order to decide whether working procedure condition is normal. 5-4 project changes a project is a very main business in activity of management business of production of car production company. Change when user demand, when supplier happening changes, problem of product occurrence quality and in the product production is made when deviation appearing in the process, raise the requirement that the project changes possibly. Give out a project to change an order by technical administrator above all commonly, set changes attributive, assign designs personnel, technologist to revise structure of corresponding design, documentation, product to wait. Change every time in changing support of the people to change time to be generated automatically and fill in to change mark column by the system, change a time certainly more than, the system calls the police clew gives a picture afresh. Of craft course change will reflect in the attribute of BOM. Next, the member that design changes sheet through filling in, allot alter data, fill in information of column matching cloth, enter change examine and approve level. Then, enter manufacturing management department, appoint production batch date and use time, enter purchase department to provide raw material, 0, the information offerring money of the component. Finally, according to matching cloth information to extend corresponding blueprint, documentation, BOM is carried out to each branch and outside assist factory, print by departmental door carry out. Management of 5-5 comprehensive information builds a product through be in PDM comprehensive information feedback is only, departmental door can offer a product in real time the executive circumstance of each phase, design and quality problem, solution and rationalize proposal, information of sufficient play electron of collateral, high speed, multimedia deliver a characteristic, make PDM system becomes information communication platform, implement the market, design, technology thereby, make, manufacturing management, purchase, wait for a branch after service, qualitative check, financially, integratedly to undertake cooperating with working in PDM environment. In the car production enterprise carries out PDM, want to understand the note that general PDM system carries out already, want to combine the characteristic of automobile industry again. On the type selecting of PDM, because PDM is to need to the company level that specific aim carries out runs software, the enterprise wants the particular goal that should achieve according to the demand of oneself and place, the first step platoon that needs a function by oneself place decides software necessary with optional function, seek appropriate supplier, with will provide stronger technical support and service capability. In the meantime, the industry setting that need notes to enterprise interior carries out a team and executive ability. In enterprise limits executive PDM needs to have whole and compositive consciousness, before executive PDM, the enterprise must make corresponding regulations system, undertake grooming seriously to all and relevant personnel. On the management that concerns in product data and its correlation, PDM should offer the support such as classified management to design function of put sb in a very important position, must can the historical data of sufficient and compositive successive perhaps enterprise. Product data is main with electronic medium (use for the design) with paper medium (basically offer directive production to use) existence, the system that the enterprise wants to make phasing answer will ensure the consistency of paper documentation and electronic documentation. Develop pattern to the product, need develops change to be what different compose falls with distributinging environment to cooperate with from concentration product development, from the product data system of level of branch, company development is product complete lifecycle to run a system. CNC Milling