Introduction to CNC machining

1. Kazakh Agro-technical university named after S. Seyfullin Department of Technological machines and equipment Systems of

numerical control of machine tools - CNC
machine tools
Introduction to CNC
machining
Lecturer: Cand. Tech. Sci., Senior Lecturer
U. Kakimov
© KATU S.Seyfullin, 2016

2. Content

The architecture of NC machine tools and machining operation
flow
Machine control system, classification of machine control
systems software, specifications and design features of the
numerical control systems
Point-to-Point NC
Straight cut NC
Contouring NC

3. Introduction

The aim of this lecture is to define the fundamentals of CNC machining,
features of different types of processing and types of employed tools.
Numerically controlled (CNC) machine tool, robot, another object will be
called the way of management on the basis of the prepared control
program, the main indicators of which are given in digital form.
Under the CNC will understand the device outputs a control influence on
the controlling devices of the object in accordance with the managing
softwares, algorithms, processing and information on the state of the
managed object.

4. The architecture of NC machine tools and machining operation flow

5. Model of equipment management from CNC

6. Machine control system, classification of machine control systems software, specifications and design features of the numerical

control systems
Point-to-Point NC
Point-to-point is also sometimes called a positioning system. In PTP the objective of the
machine tool control system is to move the cutting tool to predefined location. The
speed or path by which this movement is accomplished is not important in point-to-point
NC.
Straight cut NC
Straight cut control systems are capable of moving the cutting tool parallel to one of the
major axes at a controlled rate suitable for machining. It is therefore appropriate for
performing milling operations to fabricate workpieces of rectangular configurations.
Contouring NC
Contouring is the most complex flexible and the most expensive type of machine tool
control. It is capable of performing both PTP and straight cut operations.

7.

Thanks for your attention