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ME350 –CAD/CAM Background Information 1 Overview of Computer-Aided Manufacturing 1.1 Background This laboratory will introduce you to the process of Computer-Aided Manufacturing (CAM), in which a 3D CAD model will be used to machine your design from an aluminum block using a Tormach 3-axis CNC mill. The mill’s instructions come in the form of G-Code, which needs to be generated from your CAD model using Pro/Engineer software. By defining machining parameters such as tool type, cut feed, and spindle speed, an appropriate tool path is automatically generated by Pro/E. You will generate multiple tool paths for roughing, re-roughing, and finishing processes by varying the tool type and machining parameters. The roughing process will be used to machine the rough outline of the part, while the finishing process will be used to machine fine details and to improve the surface finish. 1.2 Definition of Computer-Aided Manufacturing Computer-Aided Manufacturing (CAM) refers to the use of specialized software in order to facilitate the transition from design to manufactured part. In typical applications, a 3D CAD model is used as a reference from which to generate Numerical Control (NC) code. This allows the connection from design to manufacture to become increasingly automated and precise since human inefficiencies and inaccuracies are greatly reduced. While human processing is replaced by computers, CAM requires specialization in order
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This note was uploaded on 01/15/2010 for the course ME 350 taught by Professor Staff during the Spring '08 term at University of Illinois, Urbana Champaign.

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