数字化工程 设计、制造和检测.ppt

Page * Page * Tool and Moldmaking Volkswagen AG Page * 车的边门 Page * Page * Page * Page * 反求工程（RE） 在现代机械制造领域中，反求技术是针对现有三维实物（样品或模型），在没有技术文档的情况下，利用三维数字化测量设备准确、快速测得轮廓的几何数据，并加以建构、编辑、修改生成通用输出格式的数字化模型，再送入通用CAD/CAM系统中，作进一步的处理，从而生成NC加工路径或RP所需的模型截面轮廓数，最后复制出实物或其原型的过程。 Page * 基于反求工程的产品设计与开发 CAD模型重建(曲面重构) 数字化测量 实物/样件 凹凸模 NC代码 STL文件 快速原型 产品/模具 反求工程软件: Polyworks, Imageware, Surfacer, Geomagic, Catia, freeform, Rapidform, 以创新为目的的再设计 CAE分析 Page * RE的广泛应用 Charles Bridge sculptures. State institute for the Care of Historical Monuments in Prague with the support of the Czech Ministry of Culture began a long-term project, monitoring the Charles Bridge sculptures, in 1999. The Charles Bridge, dating from the 14th century, is not only a significant historical monument, but also a gallery of baroque plastics(巴洛克时期艺术和建筑风格的). A Perfect Helmet for Formula 1 Schuberth Engineering AG in Braunschweig(=Brunswick), Germany, develops and manufactures high-tech helmets that are also preferred by many Formula 1 teams. Michael Schumacher, Rubens Barrichello, Ralf Schumacher and Nick Heidfeld rely on the individual and tailor-made(特制的) helmets Page * Page * Page * Page * Page * Page * Page * Page * Page * Advantage As an result, Rubens (鲁宾斯)Barrichellos helmet just weighs 1050 grams and thus is about 500 g lighter than his old helmet. That way, during a race, the muscles of the neck are essentially relieved. The slender (苗条的, 微薄的)form of the helmet results in less air resistance and better streaming to the air box. * Rhetorical adj. 带修辞色彩的 * Listeners have one chance to hear your talk and cant re-read when they get confused. In many situations, they have or will hear several talks on the same day. Being clear is particularly important if the audience cant ask questions during the talk. * Page * 数字化工程: 设计、制造和检测 Page * 数字化工程 定义: 数字化工程一般是指在国家经济各个领域，应用数字化技术实施领域上、中、下游作业的数字化运作，所需各种措施的集合。 数字化工程又是一门工程学科，涉及领域数字化需求、领域数字化系统设计、建造、管理、运作、应用、评估、改进等方面的基础和应用基础研究、和领域数字化人才的培养和应用等。 数字化工程是推动国家经济各个领域技术进步，建