計算機在模具設計中的應用外文翻譯-資料下載頁
2025-05-11 17:30本頁面
【導讀】CAD一詞有時用來指計算機輔助設計，有時用來指計算機輔助繪圖，實際上，樣,包括草圖、加工圖、零件清單及設計計算。典型CAD系統(tǒng)的硬件部分包括處理器、顯示器、鍵盤、數(shù)字化儀。件簡化設計過程、提高設計質(zhì)峨的設計人員。隨著20世紀60年代早期數(shù)字化平板儀的發(fā)明，我們今天所知的CAD硬。件開始成型，很快計算機繪圖軟件隨之得以發(fā)展。被稱為微機的計算機。初，研發(fā)與銷售CAD系統(tǒng)已成為一個飛速增長的產(chǎn)業(yè)。這就意味著和產(chǎn)品有關的所有信息交。換是連續(xù)無間斷的，由集成電子數(shù)據(jù)處理計算機提供通訊鏈接。CAM占主導地位，借助CAM,可將用CAD研發(fā)的理論產(chǎn)品轉(zhuǎn)化為真實有用的模具。進行修改，直至其功能和外觀設計都滿足客戶要求為止。角光滑過渡，反復擬合修整直至得到滿意的結(jié)果。據(jù)被電子化儲存。具制造商，并且要保證數(shù)據(jù)能在汽車生產(chǎn)商的CAD部門內(nèi)順利交換。仍處于研究階段?？谔帞?shù)據(jù)文件丟失，導致產(chǎn)品表征不完全。數(shù)據(jù)必須進人合適的計算機系統(tǒng)重新獲得。
【正文】 France but isnot used outside France. Despite the continued development of interface systems and more than 15 years of application, data loss is still not unmon. In many cases, such difficulties during data transfer mean that the drawing (part drawing) once again bees the medium by which information (data) must be conveyed. Current efforts aim to bine the above161。170。mentioned standards into a national system (Standard for the Exchanged of Product Model data, or STEP) and in this way unite development of the various interfaces in order to facilitate the seamless transfer of all productdefining data. At present, STEP is still in the development phase. The interface also provides for munication between the individual puter systems. It is quite possible to have no connection between, for instance, the CAD and CAM departments within the same pany because the wrong software was selected without the correct interface configuration. Data files can be lost at the:iiiterface in thus way so that the product is represented inpletely. In this case, data transfer must be terminated pletely or the lost information must be reentered into the appopriate puter system. D. Software With the introduction of data processing, a flood of software suppliers appeared on the market so that the selection of software for use within a pany almost began to resemble a lottery. In the course of further development, however, only a few systems have established themselves, and these can municate with one another via appropriate interfaces. The requirements to be satisfied by the software result from the objectives of the end user. Suitable software packages are available from the suppliers in a more or less userfriendly form to help acplish a specific task, depending on whether a product is to be designed (CAD), production is to be scheduled (CAP), or machining operations are to be programmed (CAM). Wellknown software supplies from the mechanical standpoint include Altium, Autodesk, Cadkey, HewlettPackard, Intergraph, MCS and ZieglerInformatics. At the same time, it is obvious that selection of a system cannot be based on these functions alone. A critical evaluation requires consideration drawings need to be prepared, and whether 2D or 3D geometric data can or should be displayed, not to mention the hardware, possible interfaces (very important), and the system price. E. CAD Mold Design As soon as the customer has transferred the part design to the moldmaker via the appropriate interface, the mold designer can design theiold around thepart. The designer determines the dimension (size) of the mold, ,vhetler moving parts (slides, lifters) are required, and the layout of cooling lines and gate locations, etc. , all in relation to the part geometry. All aspects of the mold design are stored in the puter and can be retrieved at any time, e. g. , by the production or scheduling departments.
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