| Composites have been widely used in the fields of aircraft/spacecraft, automotive, and health care, etc. Because of their excellent strength-to-weight ratios, stiffness-to-weight ratios, fatigue resistance, composite on one hand has a wide ranged application prospect, on the other hand is hard to be manufactured. Currently, CNC machining has gradually replaced the manual operation mode as the primary means of composite processing. Technologists still need to select the machining tool and process parameters depending on experience in processing, without the help of mature composite processing system. China’s demand for composite process database is very urgent. Technological blockade, high prices and other reasons, limit the use of foreign technology database. The domestic processing equipment and processing tools are different from those in foreign constrains, which restricts the applicability of forengn process database. Process database for composite adapted to the actual situation must be established.Process database for composite has been researched and established from the overall program design, software systems development and data integration, etc. According to the actual needs and work practices of composite production and processing enterprises and research institutions, the needs of database system has been analyzed. Based on the analysis, the B/S architecture development model and modular design concept are used. According to the system scale, scalability and cost control needs, ultimately chose MySQL database as the database management system. In addition, the application of smarty template engine, not only greatly speeds up the loading speed of the pages, but also effectively prevent resources and time from being wasted brought by invalid data submission, at the same time the robustness of the data has been ensured.In order to manage the composites machining process system, sub-databases have been established, such as composite material database, characteristics database, parts database, processing tools database, assistant equipment database, and processing equipment database. Process database is the link of sub-databases, storing the reasonable processing technology and processing parameters of the composite. To avoid the lack of process data for new type of composite, intelligent retrieval function is used in the process database, making a guiding role of actual processing. Users can get the most similar results with the help of this function based on search parameters. User permissions achieve the hierarchical database management and maintenance, protectting of the robustness of the data effectively. Some of the processing and design information is complicated and self-contained. In order to achieve unified management and use. In order to achieve the unified management and application of information, set up a typical process package database is built. This information can be unified upload and download as attachment files.After the completion of the database building, datas integrated using materialized integration approach based on the intermediate tier. Carried out data integration validation, from the aspects such as composites machining process system, typical process package, and information, etc. The applications and data validation of the composite process database has been introduced, taking drilling hole test of composites as an example.Composite process database system can provide useful composite processing data for machinery processing sector, what is meaningful for shortening the period of the development and production of composite components, and improving China’s manufacturing processing technology. |
