CAD/CAM Ô­ÀíÓëÓ¦ÓÃ-(Ó¢ÎÄ°æ)

chapter 1an overview of cad/cam111concept of cad/cam112process of computeraideddesign213process of computeraidedmanufacturing514integration of cad/cam615cad environment8151cad hardware8152cad software1016applications of cad/cam1217history and trends of cad/cam16assignments20chapter 2solid modeling2221an overview of solid modeling22211concept of solidmodeling22212application of solidmodeling22213advantages of solidmodeling2322solid model representation2423wireframe model2524surface model26241introduction to surfacemodel26242mathematic representationsof curves26243introduction to splines28244b¨¦ziercurves/surfaces29245rational b¨¦zier curves31246bsplinecurves/surfaces31247nurbs36248generalization of bspline to nurbs38249intuitive understanding ofnurbs402410choosing arepresentation442411smoothness452412applications of nurbscurves/surfaces472413surfaces based ontriangle meshes4825solid model5026solid model creation scheme5127constructive solid geometry scheme5128boundary representation (brep)scheme54281boundary representation54282the wingededge data structure55283faces have holes58284exact brep and faceted brep58285advantages anddisadvantages of brep59contentscad/camÔ­ÀíÓëÓ¦Óã¨Ó¢Îİ棩29sweepingscheme59210reverse engineering612101introduction612102process of reverseengineering622103reverse engineeringhardware632104point cloud dataprocessing652105reverse engineeringsoftware652106reverse engineeringapplication672107reverse engineeringmodeling method69assignments76chapter 3featurebased modeling7931introduction to featurebaseddesign79311feature definitions79312how to obtain applicationfeatures81313the significance offeaturebased design8332parametric modeling technology8433extended variational technology8434main features of parametric featurebased cad system85341modeling based onfeatures85342modeling based onhistory85343modeling based onparameters88344modeling based on constraints89345modeling based on designintent92346modeling based onassociativity9435trends of solid modeling95351direct modeling97352synchronous technology98353integrated modelingapproach100assignments100chapter 4cad/cam integration10341introduction10342initial graphics exchange specifications104421introduction104422structure of iges files106423basic iges entities108424an example of igesfiles109425limitations of iges11043standard for the exchange of product model data110431introduction110432an example of stepfiles11144stepnc113441introduction113442research anddevelopment114443stepnc115444stepnc data model118445stepnc application case study: spaim120446benefits of stepnc 123447future development12445feature recognition125451introduction125452historical perspective127453manufacturing/machiningfeatures127454feature recognition129455automatic featurerecognition133456commercial featurerecognition systems13346group technology134461concept134462the role of grouptechnology in cad/cam integration134463ways to identify partfamily135464benefits of a welldesigned classification and coding system140465machine cell design¡ªtypes of gt cells140466benefits of grouptechnology140467problems in grouptechnology14047benefits of integrated cad/cam141assignments142chapter 5computerintegrated manufacturing system14551introduction14552key challenges14753subsystems in computerintegratedmanufacturing14854application14955flexible manufacturing system149551introduction149552concept of flexiblemanufacturing system150553advantages anddisadvantages of flexible manufacturing system151554theory of flexiblemanufacturing system152555workstations154556flexibility and itstype164