April 19, 2023

CNC Lectures Prof. Adel .M. Abdelmboud

Prof. of Manufacturing Engineering

3Prof. Dr. Adel M. Abdelmaboud CNC Lectures

Lecture(01) CNC-NC Introduction

April 19, 2023 Prof. Dr. Adel M. Abdelmaboud CNC Lectures

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Goals and objective

April 19, 2023 Prof. Dr. Adel M. Abdelmaboud CNC Lectures

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• Reference• 1) Book: CAD/CAM: Computer-Aided Design

and Manufacturing, by Mikell P. Groover and Emory W. Zimmers Jr., Printice Hall of India Private Limited

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What is CNC• Computer numerical control (CNC) is the

process of manufacturing machined parts.• Production is controlled and allocated by a

computerized controller.• A programmed path is loaded into the machine's

computer by the operator and then executed. • Numerical control (NC) is the original term given

to this technology and is still often used interchangeably with CNC.

Prof. Dr. Adel M. Abdelmaboud CNC Lectures

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Basic Components Traditional NC system

1-Part program

• The part program • is the set of commands to

be followed by the processing equipment.

• It is the program of instructions in the NC control system.

• Each command specifies a position or motion that is to be accomplished by the work head relative to the workpart.

• The part program is prepared by a part programmer, a person who is familiar with the details of the programming language and also understands the technology of the processing equipment.

Prof. Dr. Adel M. Abdelmaboud CNC Lectures