EML2322L-CNC Machining

EML2322L-CNC Machining - EML 2322L - MAE Design and...

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EML 2322L -- MAE Design and Manufacturing Laboratory CNC Machining Intro to CNC Machining CNC stands for computer numeric controlled . It refers to any machine tool (i.e. mill, lathe, drill press, etc.) which uses a computer to electronically control the motion of one or more axes on the machine. The development of NC machine tools started from a task supported by the US Air Force in the early 1950’s, involving MIT and several machine-tool manufacturing companies. The need was recognized for machines to be able to manufacture complex jet aircraft parts. As computer technology evolved, computers replaced the more inflexible controllers found on the NC machines; hence the dawn of the CNC era. CNC machine tools use software programs to provide the instructions necessary to control the axis motions, spindle speeds, tool changes and so on. CNC machine tools allow multiple axes of motion simultaneously, resulting in 2D and 3D contouring ability. CNC technology also increases productivity and quality control by allowing multiple parts to be produced using the same program and tooling.
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Basics of CNC Programming There are two ways to program modern CNC machine tools. 1. Conversational Programming. This is the simpler of the two methods. In effect, this is a macro programming language used to instruct the machine to perform pre-programmed cycles (i.e. facing, drilling holes in arrays, etc.). When writing a conversational program, you simply enter the appropriate parameters associated with each machining cycle. This is analogous to using the polar array function in SolidWorks or Pro/E; you don’t have to do the layout or trig to find the location of the features; you just specify the essential parameters and the software does the rest for you. 2.
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This note was uploaded on 10/18/2011 for the course EML 2023L taught by Professor M.braddock during the Spring '11 term at University of Florida.

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EML2322L-CNC Machining - EML 2322L - MAE Design and...

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