Essay on CAD/CAM Systems

In the past fifteen years the interactive computer graphics and CAD/CAM technology have been impacting the drafting, design, and manufacturing tools significantly. The purpose of this paper is to present CAD/CAM principles and tools in generic and basic terms. These principles are supplemented with engineering and design applications as well as problems.

CAD/CAM contents and tools
In engineering practice, CAD/CAM has been utilised in different ways by different people. Some of the applications of this technology are:

production of drawings and design documents
visualization tool for generating shaded images and animated displays
Engineering analysis of the geometric models (finite element analysis, kinematic analysis, etc.)
process planning and generation of NC part programmes

The CAD process is a subset of the design process. Similarly, the CAM process is a subset of the manufacturing process. The implementation of the CAD process on current systems takes the generic flow presented in fig. 1.1. Once a conceptual design materializes in the designer’s mind, the definition of a geometric model starts via the user interface provided by the relevant CAD system. The choice of a geometric model to CAD is analogous to the choice of mathematical model to engineering analysis. For example, FEA might require a different model than kinematic analysis. A valid geometrical model is created by the CAD system through its definition translator which................

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ESSAYS ON TECHNOLOGY