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162. Introduce the CNC technology

CNC rapid prototyping Technology Aids in large-scale fabricator’s success. CNC technology is also used for edge profiling.

Laser cutting is growing in popularity owing to its accuracy and high speed. CNC laser cutting is the combining of the computer robot with the laser system. CNC stands for computer numerical control. CNC lasers use an automated software guided system for the laser cutting process.

Before the metal sheet is cut into the desired shape, a hole is first made somewhere along the line to be cut. Then the laser beam is focused through this hole. After this, either the laser beam is moved keeping the sheet constant or the laser beam is fixed and the sheet is moved.
alternatives: The possible alternatives that can be used in place of laser cutting are abrasive water jet cutting, plasma cutting and CNC machining. In CNC machining, however, there is a major disadvantage of production tooling of micro-irregularly cut edges.

Laser cutting may heat some materials and cause distortion, but this depends on material thickness and temperature characteristic. Waterjet cutting may be an alternative, or even photochemical etching for very thin stock.