机电工程专业英语 教学课件 ppt 作者 马佐贤 主编 张雪娟 副主编Unit 4.pptVIP

Assignment Assignment * * Unit 4 CAD and CAM CAD and Applications 4.2 Dialogue 4.1 Dialogue 4.1 Topic Introduction: Mr. Robert, general manager of Sino-German Auto Parts Manufacturing Cooperation, is visiting the training center and CAD/CAM lab of a school. Welcome to our school Schedule introduce each other visit the training center visit the CAD/CAM lab introduce each other Mr. Jiang dean of the electromechanical department Mr. Robert general manager of Sino-German Auto Parts Manufacturing Cooperation Mr. Jin manager of the personnel department visit the training center look at the equipment NC lathe with a MITSUBISHI M50 L NC system of Japanese NC milling machine with an FANUC system visit the training center ask students to operate the Machining Center visit the CAD/CAM lab configuration of computers Pentium 586 64-128M Memory AutoCAD, Master CAM , EDA and PLC software Pro-engineer in teacher’ computer Multi-media ( big-screen projection visit the CAD/CAM lab lessons given in the computer room computer fundamentals and applications CAD/CAM Numerical Programming EDA PLC Computer Networks E-commerce Consolidation general manager personnel department electromechanical integration be good at operations be rich in practical experience CAD intermediate 总经理 人事部 机电一体化 擅长操作 实践经验丰富 CAD中级 Perform the dialogue. 2. Recite the words and phrases. CAD and Applications 4.2 Teaching Aim: To make the students know the development history of CAD. 2. To learn about three-dimensional solid modeling and application of CAD. brief history of CAD CAD is a product of the computer era. It originated from early computer graphic systems to the development of interactive computer graphics. CAD是计算机时代的产品。 它从早期的计算机绘图系统发展到现在的交互式计算机图形学。 in the beginning CAD systems were no more than a graphics editor with some built-in design symbols. the 1970s the invention of three-dimensional solid modeling marked the beginning of a new era in CAD . 三维实体建模的发明