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Jiangsu Kuntai Machinery Co.,Ltd

Cutting Machine Broadly Used

Laser cutting machine for the flight of the optical path of the cutting machine, Cutting Machine because the beam divergence angle, cutting the proximal and distal time course is different, before focusing the beam size there is a certain difference. But the cutting splash, Cutting Machine the lens from the workpiece too close to the lens is easy to damage, so the general high-power CO2 laser cutting machine industry applications widely used 5 〃 ~ 7.5 〃 "(127 ~ 190mm) focal length.Therefore control the focus relative to the material The actual focal spot diameter is between 0.1 and 0.4 mm. For high quality cutting, the effective focal depth is also related to the lens diameter and the cut material. If the pre-focus beam size becomes smaller, the focal spot diameter changes Large, Cutting Machine automatic control of water pressure to change the focus of the curvature of the focus spot diameter smaller.For example, with 5 〃 lens cut carbon steel, focal depth for the focal length of + 2%, that is about 5mm.

Blue Spark: Remove the nozzle, blow the air, Cutting Machine the pulse laser hit the stainless steel plate, so that the cutting head from top to bottom movement, until the blue spark as the focus. The detailed dimensions are determined experimentally.

Laser cutting machine several hub technology is light, machine, Cutting Machine electric integration of integrated technology. That is, when the cutting of the distal end of the optical path increases to make the compensation optical path shortened; otherwise when the cutting near the end of the optical path decreases, so that the compensation optical path to maintain the same optical path length. Cutting Machine As shown in Figure 2. In order to reduce the change in the spot spot size caused by the change in the size of the beam before focusing, Cutting Machine the manufacturer of the laser cutting system at home and abroad provides some special equipment for the user to use:

Slant plate method: with the vertical axis at an angle oblique plastic plate so that the level of pulling, looking for the laser beam at the minimum focus. Since the energy density is proportional to 4 / πd2, Cutting Machine the focal spot diameter is as small as possible to produce a narrow slit; Cutting Machine the focus spot diameter is also proportional to the focal depth of the lens.

In the laser cutting machine in the laser beam parameters, Cutting Machine machine and CNC system performance and accuracy of a direct impact on the efficiency and quality of laser cutting.

The lower axis of a separate moving lens is added to the cutting head, Cutting Machine and the Z-axis with the control nozzle to the surface of the material is two independent units. The smaller the focal length of the focusing lens, the smaller the spot spot diameter. Considering the cutting quality, cutting speed and other factors, in principle 6mm metal material, the focus on the surface; 6mm carbon steel, Cutting Machine the focus on the surface; 6mm stainless steel, the focus under the surface.

This is a commonly used method, that is, the output of the CO2 laser with a parallel beam tube for beam expansion processing, beam after the beam diameter becomes larger, Cutting Machine the divergence angle becomes smaller, so that the cutting work in the vicinity of the proximal and distal The beam size before focusing is close to the same. When the machine table moves or the optical axis moves, Cutting Machine the beam moves from the proximal end to the distal F-axis at the same time, so that the spot diameter of the beam is aligned throughout the processing area. Cutting Machine The larger the diameter of the incident beam, the smaller the diameter of the focal spot.


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