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CAD/CAM: Computer-Aided Design and Manufacturing by JR. - Department of Industrial Engineering, Lehigh University Emory W. Zimmers,, Mikell P. Groover

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Chapter 8NC Part Programming

8.1 Introduction

Numerical control part programming is the procedure by which the sequence of processing steps to be performed on the NC machine is planned and documented. It involves the preparation of a punched tape (or other input medium) used to transmit the processing instructions to the machine tool. As indicated in Section 7.3, there are two methods of part programming: manual part programming and computer-assisted part programming. In this chapter we describe both of these methods, with emphasis on the latter.

It is appropriate to begin the discussion of NC part programming by examining the way in which the punched tape is coded. Coding of the punched tape is concerned with the basic symbols used to communicate ...

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