Enclosed Type
The main technology of laser cutting machine
by:Transon
2020-10-29
With 5 'of lens cutting carbon steel, for example, the focal length of focal deeply + 2% range, namely around 5 mm.
For high quality cutting, the effective depth of focus and is cut and lens diameter and related materials.
laser cutting machine several pivotal technology is a combination of optical, mechanical and electrical integration technology. The actual focal spot diameter in 0. 1 to 0. Between 4 mm. Namely to make compensation when cutting the remote optical path to increase the light path shortened; Conversely when cutting proximal reduced optical path, increase the light path compensation, to keep the optical path length. The smaller the focusing lens focal depth, focal spot diameter. In order to reduce the focus beam size change before the change of the focal spot size, the laser cutting system both at home and abroad manufacturers provide some special device for users to choose:
parallel light pipe. Laser cutting machine in detail size determined by experiment. As shown in figure 2. If before the focus beam size smaller and make the focal spot diameter larger, automatic control water pressure change focus curvature makes focal spot diameter smaller. So control focal point relative to the cut material on the surface of the position is very important. The diameter of the incident beam is larger, the smaller the diameter of the focal spot. But cutting has splash, easy to get too close to the workpiece lens damage, so generally high power CO2 laser cutting machine widely used in industry application of '5 ~ 7. 5 '(' 127~190mm) The focal length.
in the cutting head under a separate mobile lens to axis, it and control the nozzle to the material surface interval ( 对峙) The Z axis is two independent of each other.
laser cutting machine in the industry to produce a simple method to determine the focus position has three kinds:
print method: make the cutting head movement, down on the long plastic board for laser printing, print small diameter as the focus.
in the laser beam parameters in laser cutting machine, machine with the function and precision of numerical control system directly affects the efficiency and quality of laser cutting. Because the energy density is proportional to the 4 / PI d2, so the focal spot diameter as small as possible, in order to produce a narrow kerf width; At the same time focus spot diameter and is directly proportional to the depth of focus of the lens.
flight path on cutting machine increases the x and y direction to compensate the light path system. Especially for cutting parts with high precision or large thickness, must grasp the hub and to solve the following techniques: focus position control technology, laser cutting is one of the strengths of the beam of high energy density, general 10 w/cm2.
for flying light path of the cutting machine, because the beam divergence Angle, cutting the proximal and distal time range is different, focusing the beam size before have certain difference. This is a commonly used method, that is, at the output of the CO2 laser beam expander of parallel light pipe processing, expanded beam after the beam diameter, divergence Angle smaller, so in cutting work within the scope of the proximal and distal focused beam size close to agreement before. Concern to the cutting quality and cutting speed, in principle, 6 mm of metal materials, focus on the surface; 6 mm carbon steel, focus on the surface; Below the surface of 6 mm stainless steel, the focus is on. 。
laser cutting machine control focusing mirror ( General focus for metal reflection system) The water pressure.
blue spark method: laser cutting machine to remove the nozzle, blowing air, will play on stainless steel plate, the pulse laser makes the cutting head from the top down movement, until the blue sparks as the focus.
inclined plate method: use and a vertical axis Angle of inclined put plastic board makes its level, looking for a laser beam as the focus of the small. When the machine table to move or optical axis direction, the beam from the proximal to distal F axis move at the same time, also make the light beam focusing spot diameter after consistent throughout the processing area.
laser cutting machine laser oil should begin from the following options
laser cutting machine several pivotal technology is a combination of optical, mechanical and electrical integration technology. The actual focal spot diameter in 0. 1 to 0. Between 4 mm. Namely to make compensation when cutting the remote optical path to increase the light path shortened; Conversely when cutting proximal reduced optical path, increase the light path compensation, to keep the optical path length. The smaller the focusing lens focal depth, focal spot diameter. In order to reduce the focus beam size change before the change of the focal spot size, the laser cutting system both at home and abroad manufacturers provide some special device for users to choose:
parallel light pipe. Laser cutting machine in detail size determined by experiment. As shown in figure 2. If before the focus beam size smaller and make the focal spot diameter larger, automatic control water pressure change focus curvature makes focal spot diameter smaller. So control focal point relative to the cut material on the surface of the position is very important. The diameter of the incident beam is larger, the smaller the diameter of the focal spot. But cutting has splash, easy to get too close to the workpiece lens damage, so generally high power CO2 laser cutting machine widely used in industry application of '5 ~ 7. 5 '(' 127~190mm) The focal length.
in the cutting head under a separate mobile lens to axis, it and control the nozzle to the material surface interval ( 对峙) The Z axis is two independent of each other.
laser cutting machine in the industry to produce a simple method to determine the focus position has three kinds:
print method: make the cutting head movement, down on the long plastic board for laser printing, print small diameter as the focus.
in the laser beam parameters in laser cutting machine, machine with the function and precision of numerical control system directly affects the efficiency and quality of laser cutting. Because the energy density is proportional to the 4 / PI d2, so the focal spot diameter as small as possible, in order to produce a narrow kerf width; At the same time focus spot diameter and is directly proportional to the depth of focus of the lens.
flight path on cutting machine increases the x and y direction to compensate the light path system. Especially for cutting parts with high precision or large thickness, must grasp the hub and to solve the following techniques: focus position control technology, laser cutting is one of the strengths of the beam of high energy density, general 10 w/cm2.
for flying light path of the cutting machine, because the beam divergence Angle, cutting the proximal and distal time range is different, focusing the beam size before have certain difference. This is a commonly used method, that is, at the output of the CO2 laser beam expander of parallel light pipe processing, expanded beam after the beam diameter, divergence Angle smaller, so in cutting work within the scope of the proximal and distal focused beam size close to agreement before. Concern to the cutting quality and cutting speed, in principle, 6 mm of metal materials, focus on the surface; 6 mm carbon steel, focus on the surface; Below the surface of 6 mm stainless steel, the focus is on. 。
laser cutting machine control focusing mirror ( General focus for metal reflection system) The water pressure.
blue spark method: laser cutting machine to remove the nozzle, blowing air, will play on stainless steel plate, the pulse laser makes the cutting head from the top down movement, until the blue sparks as the focus.
inclined plate method: use and a vertical axis Angle of inclined put plastic board makes its level, looking for a laser beam as the focus of the small. When the machine table to move or optical axis direction, the beam from the proximal to distal F axis move at the same time, also make the light beam focusing spot diameter after consistent throughout the processing area.
laser cutting machine laser oil should begin from the following options
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