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Computer Numerical Control (CNC)

maker

Computer Numerical Control (CNC) refers to the automated control of machining tools by means of a computer.

expanded

In practical terms, CNC involves the use of a computer to issue programmed commands to ensure precise mechanical processes. The system is crucial in manufacturing for creating complex parts with high precision and repeatability, vital in industries like aerospace, automotive, and electronics manufacturing.

examples

A CNC milling machine uses servo motors to operate axes with accuracy up to 0.01 mm (0.0004 in).

CNC milling is commonly employed in producing injection molds used in plastic manufacturing industries.

A CNC laser cutter requires precision control systems to focus laser beams within 0.025 mm (0.001 in) for cutting steel up to 12 mm (0.47 in) thick.

CNC laser cutters are frequently used in metalworking shops for fabricating sheet metal parts.

related terms

G-code
G-code is a programming language used to control CNC machinery.
Computer-Aided Design (CAD)
A process of using computer software to create precision drawings or technical illustrations.
Laser cutting
Laser cutting is a technology that uses a laser to cut materials with precision and speed.
Servo motor
A servo motor is a rotary actuator that allows for precise control of angular position, velocity, and acceleration.
Stepper motor
A stepper motor is an electromechanical device that converts electrical pulses into discrete mechanical movements.