The comparison between CNC and conventional system?

Answer 1

Repeatability on a conventional machine relies on the skill of the operator

and the quality of the machine.

A programmed CNC machine will exactly repeat complete requirements

for machining a given component to a very high degree of accuracy,

usually 0.0008 mm.

This can then be stored in the machine's computer memory or on a tape

or disc etc, which can then be used to repeat the exact machining cycle at a

later date.

The construction of a CNC machine is much stronger, more rigid, and will

Repeatability on a conventional machine relies on the skill of the operator

and the quality of the machine.

A programmed CNC machine will exactly repeat complete requirements

for machining a given component to a very high degree of accuracy,

usually 0.0008 mm.

This can then be stored in the machine's computer memory or on a tape

or disc etc, which can then be used to repeat the exact machining cycle at a

later date.

The construction of a CNC machine is much stronger, more rigid, and will

vibrate less than a conventionalmachine.

The accuracy of machining with a conventional machine tool is dependent on

the ability of an operator to read the dials or indicator scales correctly, and to

take account of any backlash when manually adjusting the position of the cut,

feed etc.

Answer 2

First CNC is defined as Computer Numerical Control.

So CNC machine would be a single machine that moves, operates, or is controlled by using a computer.

A CNC system then would be a system that is controlled by a computer.

Answer 3

There is a functional and scope distinction between a CNC machine and a CNC system. Mills, lathes, and routers are all examples of CNC machines because they are physically controlled by a computer. Everything from gears and motors to tools and fixtures, machining equipment is an essential part of the manufacturing process. In contrast, a CNC system includes not only the CNC machine itself but also the programming and monitoring software, control panel, and communication interface necessary to manage the machine's activities. Both the hardware and the software that facilitates CNC machining are part of the CNC system as a whole.