Fundamental of CNC machining - Lesson -1. Introduction and history of CNC machines

1. CNCFUNDA-Mill
Machining Centers
Objective:
To learn the basic fundamentals and working principles of CNC machining centres,
briefly with animation, Images and videos etc..

2. History of CNC
• In 1947, Mr. John Parsons began experimenting for using 3-axis curvature
data to control the machine tool motion for the production for aircraft
components.
• In 1949 ,Parsons corporation & MIT under the sponsorship of Air force start
working for developing the first ever NC machine.
Mr. John Parsons
Born Oct 11 1913 - Died Apr 18 2007
A recent view of Parsons Corporation headquarter
in Pasadena, California U.S.A.

3. History of CNC
• In 1952 first 3 axis demonstration was successfully done & NC machines come
into existence. In 1955, after refinements NC became available in industries.
• In 1959 machines came into existence with tool changers.
Image of the first ever NC machine
developed by MIT & Parson Corporations
1959 CNC Machine: Milwaukee-Matic-II was first
machine with a tool changer.

4. History of CNC
• In 1970 American companies start investing in manufacturing of CNC
machines.
• But in year 1979 Germany companies take off the business to a new level as
they start selling CNC machines in cheap as compared to Americans.
• But in year 1980 Japanese companies enter the field & CNC become very
economical to be used in small scale industries too. Thus the demand of
CNC in the field of manufacturing raised & is still going on.
A view of machine manufacturing unit in California A view of machine manufacturing unit in India