Computer Aided Design. CAD is used in the technical drawing of complex parts. The drawing can be either printed out on a plotter or executed in a CNC program via another processor downstream of the CAD system. CNC Abbreviation of computerized numerical control. Machine control using a freely programmable computer.
Microprocessors convert the control commands into motion signals for a machine's axes.
Consumables Essential accessories for the operation and maintenance of a machine tool . In the case of an electric discharge machining system, these include such items as wire, filters and graphite. D Dielectric Dielectrics are used in electric discharge machining as insulators for the electrode and workpiece . They also serve to keep the temperature in the machining zone constant and to flush away the particles generated by the spark. The electrode is the same shape as the item to be cast in the mold.