CNC machining is "computer numerical control" machining. This is a relatively new method in machining that allows for greater efficiency by using higher levels of automation as well as allowing the machine's computer controls and the machine to do all of the work. Although CNC machines can be expensive and complex, they are easy to use and pay off quickly by reducing work and preventing errors.
CNC machining has a number of major advantages. It improves automation and eliminates the need for an operator for only a few tasks. CNC machines can be left alone for up to 24 hours, or even several days depending on the need. This allows operators to concentrate on other tasks. Companies can also save on overhead by having fewer employees.
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Safety is increased by removing an operator. In the event of a jam or other dangerous machining error, the operator will no longer be holding the tool. The only thing that will be damaged is the tool itself. Because they are stronger and faster than human machinists, CNC machines can work faster than humans.
Because they don't need to be tired or get overtime, they can be used late at night when most workers are gone. CNC machining has another advantage: it produces an exact result every time. Even the most skilled human operator can make minor mistakes. This is crucial in today's world of standard and interchangeable parts.
A single bad cut can render a whole machine useless. It is enough to create a single program and place it into the machine. The machine will then work at completing all the required pieces, creating an exact replica every time. CNC machining offers a third advantage: the machine itself can be reprogrammed in a matter of hours. So you can produce a completely new product.