模具设计与制造专业英语 黄义俊_ 电子教案统一模板(模具)Unit10.pptVIP

Unit 10 CAD/CAM/CAE/CAPP 10.1 Lesson 23 Computer-aided Design  Manufacturing (CAD/CAM) Computer-aided design/computer-aided manufacturing（CAD/CAM）refers to the integration of computers into the design and production process to improve productivity. The heart of the CAD /CAM system is the design terminal and related hardware, such as computer, printer, plotter, paper tape punch, tape reader, and digitizer．The design is constantly monitored on the terminal until it is completed. A hard copy can be generated if necessary. A computer tape or other control medium containing the design data guides computer-controlled machine tools during the manufacturing, testing, and quality control. The software for CAD/CAM is a collection of computer programs stored in the system to make the various hardware components perform specific tasks. Examples of software are programs developed to generate a NC tool path, to assemble a bill of materials, or to create nodes and elements on a finite element model. Some of these software packages are referred to as software modules and can be classified into four categories: （1）Operating systems （2）General-purpose programs （3）Application programs （4）User programs Although there are other kinds of software, these are sufficient for an explanation of the complexities in developing a CAD/CAM system. With the advent of computer technology, manufacturing professionals have wanted to automatic the design process and use the database developed therein for automating manufacturing processes. Computer-aided design/computer-aided manufacturing (CAD/CAM), when successfully implemented, should remove the“wall”that has traditionally existed between the design and manufacturing components. CAD/CAM means using computers in the design and manufacturing processes．With the advent of CAD/CAM, other terms have developed: ? Computer graphics (CG)