| CAD technique is a composing of advanced manufacture technique. It is the most high-class and new application technique in the field of engineering project and machinofacture, and so on. With the development of computer network technique and CAD/CAM, it makes a good base for application of CAD technique.Network technique is a necessary measure and theory to realize the coherence between design and manufacture. The design and manufacture based on the net not only can show the total production process of design and manufacture, but also it can carry it ' s point to debase the cost, shorten the circle of design and manufacture and quickly response to the market, it also can realize synergetic the design and manufacture of product in different zone.Design cooperation' s mean is that the designers how to get the answer to the certain question of design real-time and rapidly. In order to finish the design cooperation, it needs a concurrent and coordinate tool to sustain. In the course of design cooperation, in order to reach all people' s collaborating, it needs to realize the synchronized display and modeling. Different collaborators can watch the same three-dimensional models. In order to keep the compatibility of multi-modems, If the designer change the geometry model, this work must be isochronously carried to others on the time.To the disperse group in geography, we can use web as a tool to sustain the job. With the development of industry, standard parts more and more are used in the design of mechanical product. For the sake of avoiding repeated labor, people bring forward the advice to make a Java standard library and have created some Java standard libraries. Using it, we can increase the design' s efficiency, it adequately show the economic benefit brought by CAD.But because different units' Java standard libraries has different aim, and some units' Java standard libraries only be used in theirs interior, at present, It can' t be shared. We bring forward a idea that is making a virtual parts library (VPL) in the web .in the web station, not only it has many three-dimensional standard partsand planar drawing criterion national criterion, but also pivotal parameters of the three-dimensional model are saved in database according the parameter creating-model method . If user want to watch the data of some parts, after having pitched on the parts, user will watch them from the web. Creating the VPL in the web is a base to actualize the application of CAD, also is a important approach to improve the applied level of CAD.In this project, we use the software Solid Edge to create three-dimensional models . it uses ASP as the core . ASP can create the application system that it doesn' t has relation with the platform and make user fully use the broad data in global web. Handling the link of ASP technique and database technique, we can tie in the design, manufacture and distribution of mechanical product. Using ASP and HTML, we have realized all functions in the station and create some intellectualized and friendly interfaces.This paper is compose of six chapters: The first chapter introduces CAD technique, the origin and main work of this project; The second chapter detailedly explain how to use Solid Edge to create the three-dimensional parts models and the key technique and skills ; The third chapter introduces correlative knowledge and safety of the database; The four chapter detailedly discuss the process and the key technique about how to use ASP to create the station; The five chapter simply discuss the virtual design technique ;The six chapter detailedly introduces how to realize the function and some webs .The VPL is a high technical outcome. It combines CAD technique, network technique and database technique. It also is a pilot study to virtual design. What we have done is only elementary study to how to develop our VPL on network, It has not reached the level of practicality. But in the course of creating this station, we make the best to realize the practicability and expansibility o...
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