The term CNC stands for ‘computer numerical control’, and the CNC machining definition is that it is a subtractive manufacturing process that typically employs computerized controls and machine tools to remove layers of material from a stock piece—known as the blank or workpiece—and produces a custom-designed part.

The basic CNC machining process includes the following stages :-

Designing the CAD model.

Converting the CAD file to a CNC program.

Preparing the CNC machine.

Executing the machining operation.