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With the development of science and technology, laser technology has been applied to all walks of life. As a precision processing method, laser cutting can cut almost all materials, including two-dimensional or three-dimensional cutting of thin metal plates. The laser cutting machine is a technological revolution in sheet metal processing and the 'processing center' in sheet metal processing.
Laser uses material excitation to generate light. This kind of light has a strong temperature. When it contacts the material, it can quickly melt on the surface of the material to form a hole. According to the movement of the alignment point, the cutting is formed, so this Compared with traditional cutting methods, one of the cutting methods has small gaps and fast cutting speeds.
The cutting quality and effect of the laser cutting machine are very good, but there are many factors that will affect the cutting quality of the laser cutting machine. So, what are the factors that affect the cutting quality of the laser cutting machine?
Analysis of factors affecting the cutting quality of laser cutting machine:
1. Cutting width and perpendicularity that affect the cutting quality of laser cutting machine
The width of the cut usually does not affect the quality of the cutting. The cutting width plays an important role only when a particularly precise contour is formed inside the part. This is because the cutting width determines the contour. As the thickness of the sheet increases, The width of the cut is also increased. If the thickness of the metal plate exceeds 10 mm, the perpendicularity of the cutting edge is very important. When away from the focus, the laser beam becomes divergent. Depending on the position of the focus, the incision becomes wider toward the top or bottom, the edges are vertical, and the cutting quality is high.
2. Roughness and texture that affect the cutting quality of laser cutting machine
The laser cut part will form a vertical texture. The depth of the particles determines the roughness of the cut surface; the particles are shallow and the cut part is smooth. In most cases, the roughness must be reduced as much as possible, so the texture is light and the cut quality is high. When cutting the slab at high speed, the molten metal does not appear in the slit below the vertical laser beam, but is ejected after the laser beam is deflected. As a result, a curve is formed at the cutting edge, and the line closely follows the moving laser beam. To solve this problem, the feed speed was reduced at the end of the cutting process.
3. Material deposition, burrs and deformation that affect the cutting quality of laser cutting machines
During the cutting process, the surface of the slit can form surface deposition, and the amount of deposited material can also see the quality of the laser cutting equipment. The formation of burrs determines a very important factor in the quality of laser cutting, because removing the burrs requires extra work, so the severity and quantity of the burrs can directly determine the quality of the cut. If the part heats up sharply due to cutting, deformation will occur, so the deformation is small and the cutting quality is good.
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