Introduction to the working principle of laser cutting machine

Principle: Laser is a kind of light. Like other natural light, it is produced by jumping atoms (molecules or ions, etc.). But different from ordinary light, the laser only relies on spontaneous radiation in the initial short period of time, and the subsequent process is completely determined by the laser radiation, so the laser has a very pure color, almost no divergent direction, high luminous intensity and High correlation.

Laser cutting is achieved by using high power density energy generated by laser focusing.

Under the control of the computer, the laser outputs a controlled repetitive high-frequency pulse laser through pulse discharge to form a beam with a certain frequency and a certain pulse width. The pulsed laser beam is transmitted and reflected through the optical path, and focused on the surface of the processed object to form a delicate high-energy-density spot that melts or vaporizes near the surface to be processed. QUICKLASER is a professional fiber cutting machine manufacturers.

Each high-energy laser pulse instantly scatters a small hole in the surface of the object. Under the control of the computer, the laser processing head and the processing material perform continuous relative movement according to the pre-drawn graphics, so that the object can be processed into the expected shape.

sheet laser cutter a series
sheet laser cutter a series

Laser cutting machines are suitable for cutting materials:

(1) Carbon steel plate cutting:

Modern laser cutting systems can cut carbon steel plates with a maximum thickness close to that, and the cutting seam of thin plates can be as narrow as about 0.1mm. The heat-affected zone of laser-cut low-carbon steel is small, flat, smooth, and vertical. For high carbon steel, the edge quality of laser cutting is better than that of low carbon steel, but its heat affected zone is larger.

(2) Stainless steel cutting: laser cutting machine.

Laser cutting is easier to cut stainless steel sheets. YAG laser cutting system, the maximum thickness of cutting stainless steel can reach 4mm.

(3) Alloy steel plate cutting:

Most alloy steels can be laser cut with good quality cut edges. However, tool steel and hot die steel with high tungsten content will corrode and sticky slag during laser cutting.

(4) Aluminum and alloy plate cutting:

Aluminum cutting belongs to fusion cutting, and the auxiliary gas blows away the melt in the cutting area to obtain better cutting quality. At present, the maximum thickness of cutting aluminum plate is 1.5mm. Sheet cutting machine.

(5) Cutting other metal materials:

Copper is not suitable for laser cutting, the cutting is very thin. Titanium, titanium alloy and nickel alloy can be cut by laser.


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