Profession Laser Manufacturer more than 15 Years.
48
According to the different cutting plate material, laser cutting select the
different cutting gas. The choice of cutting gas and pressure has a great
influence on cutting quality
.
Cutting gas mainly function: combustion and heat dissipation, timely blow
molten stains produced by cutting, and prevent the cutting of molten stains to
rebound into the nozzle, protecting the focusing lens.
A)
Influence of cutting gas and pressure on cutting quality
1) Cutting gas helps to heat and melt blown combustion, stains, so as to
get better quality of the cutting section.
2) When the pressure of the cutting gas is insufficient, the cutting quality
can be influenced by the following factors: the melt stain, the cutting speed.
Could not meet the impact of production efficiency.
3) When the cutting gas pressure is too high, the impact on the
quality of cutting: the cutting surface is rough, and the cutting seam is wide;
at the same time, it can cause the cutting section to melt, which can not
form a good cutting section.
B)
Effect of pressure on the perforation of cutting gas
1) When the gas pressure is too low, the laser is not easy to cut through the
cutting board, the drilling time increases, resulting in low productivity.
2) When the gas pressure is too high, causing the penetration point melting,
forming a larger melting point, thereby affecting the quality of cutting.
3) When the laser is punched, the high gas pressure is generally adopted to
the thin plate piece, and the punching method of the thick plate is adopted,
which can eliminate the adverse factors of the low pressure to protect the lens.
4) Laser cutting machine in cutting ordinary carbon steel, the thickness of the
material is thicker, the pressure of cutting gas is relatively lower, while in
cutting stainless steel, cutting gas pressure is relatively speaking with the
thickness of the material increased.
In a word, laser cutting when the cutting gas and the selection of
pressure, must according to actual condition to adjust during cutting, in specific
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