CNC MACHINING CENTERS
INTRODUCTION TO COMPUTER NUMERICAL CONTROL
The variety being demanded in view of the varying tastes of the consumer calls for a
very small batch sizes. Small batch sizes will not be able to take advantage of the mass
production techniques such as special purpose machines or transfer lines. Hence, the need for
flexible automation is felt , where you not only get the benefits of rigid automation but are
also able to vary the products manufactured thus bringing in the flexibility. Numerical control
fits the bill perfectly and we would see that manufacturing would increasingly be dependent
on numerical control in future.
Numerical control
Numerical control of machine tools may be defined as a method of automation in
which various functions of machine tools are controlled by letters, numbers and symbols.
Basically a NC machine runs on a program fed to it. The program consists of precise
instructions about the methodology of manufacture as well as movements. For example, what
tool is to be used, at what speed, at what feed and to move from which point to which point in
what path. Since the program is the controlling point for product manufacture, the machine
becomes versatile and can be used for any part. All the functions of a NC machine tool are
therefore controlled electronically, hydraulically or pneumatically. In NC machine tools, one
or more of the following functions may be automatic.
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INTRODUCTION TO COMPUTER NUMERICAL CONTROL
The variety being demanded in view of the varying tastes of the consumer calls for a
very small batch sizes. Small batch sizes will not be able to take advantage of the mass
production techniques such as special purpose machines or transfer lines. Hence, the need for
flexible automation is felt , where you not only get the benefits of rigid automation but are
also able to vary the products manufactured thus bringing in the flexibility. Numerical control
fits the bill perfectly and we would see that manufacturing would increasingly be dependent
on numerical control in future.
Numerical control
Numerical control of machine tools may be defined as a method of automation in
which various functions of machine tools are controlled by letters, numbers and symbols.
Basically a NC machine runs on a program fed to it. The program consists of precise
instructions about the methodology of manufacture as well as movements. For example, what
tool is to be used, at what speed, at what feed and to move from which point to which point in
what path. Since the program is the controlling point for product manufacture, the machine
becomes versatile and can be used for any part. All the functions of a NC machine tool are
therefore controlled electronically, hydraulically or pneumatically. In NC machine tools, one
or more of the following functions may be automatic.
To download the full documents Click here
For more documents Click here