What Is Cad And Cam Pdf

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ROLE OF CAD/CAM IN DESIGNING, DEVELOPING AND MANUFACTURING OF NEW PRODUCTS

Computer-aided design CAD involves creating computer models defined by geometrical parameters. These models typically appear on a computer monitor as a three-dimensional representation of a part or a system of parts, which can be readily altered by changing relevant parameters. CAD systems enable designers to view objects under a wide variety of representations and to test these objects by simulating real-world conditions. Computer-aided manufacturing CAM uses geometrical design data to control automated machinery. These systems differ from older forms of numerical control NC in that geometrical data are encoded mechanically.

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Computer Aided Design CAD refers to a group of computer-based technologies which are used to develop, inspect and optimize engineered drawings. Computer Aided Manufacturing CAM is the application of computer-systems to the manufacturing environment. CAD software creates files that can be modified, enhanced and prototyped. Specifically, the creation of curves, lines and geometric designs are often referred to as CAD. Our software includes:. Having a CAD file of your prototype helps increase the productivity of a designer or engineer, while it improves the quality of your design for manufacturing or visualization purposes. Having your design in the form of electronic files will also be useful for future 3D printing or other type of manufacturing purposes.

An Interface Between CAD/CAM Softwares

The purpose of this thesis is to provide a complete package for the design and three dimensional modeling display of cams. The software produced as a part of this work will operate as a module of CADAM to produce cam designs and enter the resulting cam as a CAD model and produce the graphical display of the cam. In addition to the introductory material, this thesis is divided into four sections. The section on the graphics packages used in this thesis includes a brief history and capabilities of each of the packages.

Introduction to CAD/CAM

A CAD/CAM interface for computer-aided design of cams

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Both of these require powerful computers. CAD software helps designers and draftsmen; CAM "reduces manpower costs" in the manufacturing process. Although, in , Computervision was 1 and IBM was 2, IBM had a major advantage: its systems could accommodate "eight to 20" users at a time, whereas most competitors only had enough power to accommodate "four to six. One goal of CAD is to allow quicker iterations in the design process; [9] [10] another is to enable smoothly transitioning to the CAM stage. CAD , when linked with simulation , can also enable bypassing building a less than satisfactory test version, resulting in having "dispensed with the costly, time-consuming task of building a prototype.

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Computer Graphics : Raster scan graphics coordinate system, database structure for graphics modeling, transformation of geometry, 3D transformations, mathematics of projections, clipping, hidden surface removal. Geometric modeling : Requirements, geometric models, geometric construction models, curve representation methods, surface representation methods, modeling facilities desired. Drafting and Modeling systems : Basic geometric commands, layers, display control commands, editing, dimensioning, solid modeling. Group Tech : Part family, coding and classification, production flow analysis, advantages and limitations, Computer Aided Processes Planning, Retrieval type and Generative type.

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