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计算机辅助制造——外文献文翻译(中英文翻译11页
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Integrated Computer Aided Manufacturing
1.INTRODUCTION
Today’s industry competes in a truly international marketplace. Efficient transportation networks have created a “world market” in which we participate on a daily basis. For any industrial country to compete in this market, it must have companies that provide economic high-quality products to their customers in a timely manner. The importance of integrating product design and process design to achieve a design for production system cannot be overemphasized. However, even once a design is finalized, manufacturing industries must be willing to accommodate their customers by allowing last-minute engineering-design changes without affecting shipping schedules or altering product quality.
Most U.S.-based manufacturing companies look toward CAD/CAM and CIM to provide this flexibility in their manufacturing system . Today ,the use of computers in manufacturing is common . Manufacturing system are being designed that not only process parts automatically ,but also move the parts from machine to machine and sequence the ordering of operations in the system.( Figure 1) contains a plot of the economic regions of manufacturing. It should be noted that manual handcrafted goods will always have a market in the United States as well as abroad. This is also true of industrial products—there will continue to be a need for special one-of-a-kind items. The spectrum of one-of-a-kind goods through high-volume goods dictates that a variety of manufacturing methods be used to meet our various industrial needs. Some of these systems will look like the factories that our grandparents labored in, whereas others will take on a futuristic look. In the following sections, a discussion of flexible manufacturing systems is presented.
Figure 1 Volume versus variety regions for economic manufacturing
2.FLEXIBLE MANUFACTURING SYSTEMS
A flexible manufacturing system, or FMS as they are more commonly known, is a reprogram-able manufacturing syst
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