AUTOMATION AND CONTROL:

CNC AND PLC

LIFE LONG LEARNING COURSE

Tempus project:

Middle Eastern Partnership in Sustainable Engineering

SHADI DAANA

COMPUTER NUMERICAL CONTROL

CNC LLL COURSE

INTRODUCTION

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.

CNC ADVANTAGES

The same part can be reproduced to the same

degree of accuracy any number of times.

High speed

High accuracy

High efficiency

and repeatability

COURSE OUTPUT

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.

This course will give the trainee the basic

knowledge about CNC machine programming and

operations

COURSE OUTLINE

Introduction to CNC machines

Cartesian coordinate system

Lathe and mill CNC machines

Programming Systems

Type of machine tool movement

Programming using G-code

Introduction to CAM

NC machining using CATIA

CARTESIAN COORDINATE SYSTEM

Understand the Cartesian coordinate system is

essential for understanding the machine tool

movements used in producing a product.

There are two basic types of movements in CNC

machines: point- to-point (straight-line movements)

and continuous path (contouring movements).

LATHE AND MILL CNC MACHINES

The engine lathe, one of the most productive

machine tools, has always been an efficient means

of producing round parts.

LATHE MACHINES

LATHE AND MILL CNC MACHINES

The milling machine has always been one of the

most versatile machine tools used in industry

PROGRAMMING SYSTEMS

Two types of programming modes, the incremental

system and the absolute system, are used for CNC.

TYPE OF MACHINE TOOL MOVEMENT

TYPE OF MACHINE TOOL MOVEMENT

Point to point positioning

Continuous path (Contouring)

G-CODE

G-code is a language in which people tell

computerized machine tools what to make and how

to make it

G-code is sometimes called G programming

language.

G-CODE

The most common codes used when programming

CNC machines tools are G-codes (preparatory

functions), and M codes (miscellaneous functions).

Other codes such as F, S, D, and T are used for

machine functions such as feed, speed, cutter

diameter offset, tool number, etc.

CASE STUDY

A sample flat part used for

CNC programming and

machining

INTRODUCTION TO CAM

Computer-Aided

Manufacturing (CAM)

CAM SOFTWARE

In this Course, students will be introduced to the

CATIA V5 NC milling and turning workbenches.

Students will be taught to define and manage Mill /

Turn machining applications and explore CATIA V5

capabilities such as machining operations, parameters

and transition paths and tool path customization

Users will be trained to develop and use CATIA V5 to

create NC manufacturing programs (post-processors)