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A brief introduction to laser cutting

A brief introduction to laser cutting

Laser cutting processing technology is widely used in the processing of metal and non-metal materials, which can greatly shorten the processing time, reduce the processing cost, and improve the quality of the workpiece. Modern lasers have become the “sharp sword” that people dream of. Take the laser cutting machine as an example. The entire laser cutting processing system is composed of a control system, a motion system, an optical system, a water cooling system, and a smoke exhaust and air supply protection system. It adopts a numerical control method to realize multi-axis linkage and laser control. Energy cutting such as speed influence, while supporting graphic formats such as DXP, PLT, CNC, etc., to strengthen the interface graphics drawing processing ability; using superior performance imported servo motor and drive rail structure to achieve good motion accuracy at high speed.

Laser cutting processing is achieved by applying high power density energy generated by laser focusing. Under the control of the computer, the laser discharges through pulses to output a controlled repetitive high-frequency pulsed laser to form a beam with a certain frequency and a certain pulse width. The pulsed laser beam is guided and reflected by the optical path, and is focused by the focusing lens group. A small, high-energy-density light spot is formed on the surface of the object processed by laser cutting. The focus is located near the processed surface, and the processed material melts or vaporizes at an instant high temperature. Each high-energy laser pulse immediately sputters a small hole on the surface of the object. Under computer control, the laser cutting processing head and the processed material perform continuous relative movement according to the pre-drawn graphics, thereby processing the object into the shape you want.

When laser cutting is cutting, the airflow coaxial with the beam is ejected from the cutting head to blow the melted or vaporized material from the bottom of the incision. The airflow can also cool the cutting surface, reduce the heat-affected zone and ensure that the focusing lens is not contaminated).

Compared with traditional plate processing methods, laser cutting processing has the characteristics of high cutting quality (narrow cutting width, small heat affected zone, smooth cutting), fast cutting speed, high flexibility (can cut any shape at will), and wide material adaptability. And other advantages.