How the laser cutter terminal absorbs laser light 10

Are you asking why laser cutters can cut?

Laser cutting is the use of laser beam irradiation on the surface of the steel workpiece to release the energy to melt and evaporate, coupled with the beam coaxial high-pressure gas directly remove the molten metal, so as to achieve the purpose of cutting. The workpiece at its focal point is irradiated by the laser spot of high power density, which will produce more than 10,000 local high temperatures, so that the workpiece is vaporized instantaneously, and then the vaporized metal is blown away with the auxiliary cutting gas, so that the workpiece is cut into a very small hole, and the laser head moves according to the movement trajectory to realize the cutting of various graphics.

Laser is a type of light, which, like other luminous bodies in nature, is produced by atomic (molecule, ion, etc.) transitions and is caused by spontaneous radiation. Although a laser is light, it is significantly different from ordinary light in that the laser only relies on spontaneous radiation for an initial very short period of time, and the subsequent process is completely determined by the laser radiation, so the laser has a very pure color, almost non-divergent directionality, and extremely high luminous intensity. At the same time, the laser has high coherence, high strength and high directionality, and the laser is transmitted by the mirror and irradiated to the processed item through the concentrating mirror, so that the processed item (surface) is subjected to strong thermal energy and the temperature increases sharply, so that the point is rapidly melted or vaporized due to high temperature, and the running track of the laser head is used to achieve the purpose of processing.

The application of laser processing technology in the advertising industry is mainly divided into: laser cutting, laser engraving two ways of working, for each way of working, we have some differences in the operation process.

The process of aligning the nozzle outlet of the laser cutting machine with the laser beam is the laser cutting machine coaxiality adjustment.

Test method for concentricity:

Nozzles: Dimensions.

Tool: Scotch tape paper.

Method: 1. Adjust the coaxial position at focus 0 so that the laser is in the center of the nozzle;

2. The focus is 6mm;

If the focus 0 and 6mm are in the center of the nozzle, it is normal; Otherwise, replace the cutting head or laser optical path offset.

If the laser head nozzle is not on the same axis as the laser beam, how should it be adjusted? Please see how to do it below.

Put an iron plate on the platform, the cutting head is lowered, you can see that the size of the spot is about 1cm, adjust the two screws, adjust to the most round effect, and there is an obvious red light border around.

Attach scotch tape to the nozzle and zero the focus in front. The burst power is placed at 5%-10%. Press the dot to emit light and observe if the laser dot on the tape is in the center of the nozzle.

If the laser spot is not in the center of the nozzle, tighten the screw on whichever side the laser spot is biased. Pay attention to the angle of twisting is not too large, continue to use the tape to point out the light, first twist a little to see the effect, while the other one is a little looser, slowly adjust until it is adjusted to the center.

1. Abide by the instruction manual of the laser cutting machine and start the equipment in strict accordance with the above procedures.

2. The personnel who operate the equipment must be trained by the laser cutting machine manufacturer before they can take up their posts.

3. When processing materials, you must wear necessary protective equipment, such as protective glasses.

4. Before figuring out the processing materials, refuse to use laser irradiation and processing.

5. After the laser cutting machine is started, there must be full-time personnel present to prevent unauthorized departure, and if it is necessary to leave, the equipment should be turned off.

6. In the vicinity of laser cutting machine processing, there should be disposable fire extinguishers and other equipment.

7. During the processing process, if an abnormal situation is found, the machine should be stopped immediately, and then a special person should be found for testing.

8. After use, the laser cutting machine equipment must be cleaned in time to make adequate preparations for the next processing.

9. Regularly inspect laser tubes, auxiliary gases and other consumables on time and in quantity. Make sure you have enough!

10. When the laser cutting machine is working, it should pay attention to observe whether every detail of the machine tool is abnormal.

The operation process of the laser cutting machine is as follows:1. Fix the cutting material, and fix the material to be cut on the working surface of the laser cutting machine.

2. According to the material and thickness of the metal plate, adjust the parameters of the equipment accordingly.

3. Select the appropriate lenses and nozzles, and check them before starting the machine to check their integrity and cleanliness.

4. Adjust the focus and adjust the cutting head to the appropriate focus position.

5. Check and adjust the centering of the nozzle.

6. Calibration of cutting head sensor.

7. Select the appropriate cutting gas and check whether its ejection state is good.

8. Try to cut the material, check whether the cutting end face is smooth after the material is cut, and check the cutting accuracy, if there is an error, adjust the equipment parameters accordingly until the proofing meets the requirements and can.

9. Program the workpiece drawings and carry out the corresponding typesetting, and import the equipment cutting system.

10. Adjust the position of the cutting head and start cutting.

11. During the operation, the staff should be present throughout the process and carefully observe the cutting situation, and if there is an emergency, they need to respond quickly and press the emergency stop button.

12. Check the cutting quality and accuracy of the first sample.

How to operate the laser cutting machine when the air compressor is oil-free?

1.Keep the whole machine clean. When processing iron plates, the laser nozzle must have air coming out.

2.The rails are buttered once a month.

3.In the case of no oil in the air compressor: clean the focusing lens and reflector lens every two days. Cleaning tools: Use (medical alcohol, cotton swabs, gently scrub clockwise) air compressors, air filter bottles, and put water once a day.

4.The focal length is determined by the thickness of the iron plate. The rails are buttered once a month.

5.Air compressor, air filter bottle, water once a day. The water in the tank is changed every month.

6.When processing iron plates, the laser nozzle must have air coming out. The focal length is determined by the thickness of the iron plate.

7.The water in the tank is changed every month. It must be pure water to keep the whole machine clean.