Wednesday, January 2, 2019


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The term numerical control is a widely accepted and commonly used term in the machine tool industry. Numerical control (NC) enables an operator to communicate with machine tools through a
series of numbers and symbols.

NC which quickly became Computer Numerical Control (CNC) has brought tremendous changes to the metalworking industry. New machine tools in CNC have enabled industry to consistently produce parts to accuracies undreamed of only a few years ago. The same part can be reproduced to the same degree of accuracy any number of times if the CNC program has been properly prepared and the computer properly programmed. The operating commands which control the machine tool are executed automatically with amazing speed, accuracy, efficiency, and repeatability.

The ever-increasing use of CNC in industry has created a need for personnel who are knowledgeable about and capable of preparing the programs which guide the machine tools to produce parts to
the required shape and accuracy. With this in mind, the authors have prepared this textbook to take the mystery out of CNC - to put it into a logical sequence and express it in simple language that everyone can understand. The preparation of a program is explained in a logical step-by-step procedure, with practical examples to guide the student.

1. Cartesian Coordinate System
2. Machines Using CNC
3. Programming Systems
4. Point-to-Point or Continuous Path
5. Point-to-Point Positioning
6. Continuous Path (Contouring)
7. Interpolation
8. Programming Format
9. Programming for Positioning
10. Work Settings and Offsets
11. CNC Bench-Top Milling and Turning Centers
12. CNC Programming Hints — Milling
13. Milling and Drilling Programming
14. CNC Programming Hints – Turning
15. Fanuc Compatible Programming
16. Turning Programming

Author Details
"Steve Krar"

"Arthur Gill "

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