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How much do you know about the laser drilling process of the laser cutting machine?

Views: 37     Author: Site Editor     Publish Time: 12-01-2021      Origin: Site

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Laser drilling technology is the earliest practical laser processing technology, and it is also one of the main application areas of laser processing. With the wide application of laser cutting machines, laser drilling and laser cutting can be completed with one device. How much do you know about the laser drilling process of the laser cutting machine? Let me introduce Leapion laser.

The laser drilling process uses a high-power density laser beam to irradiate the material to be processed, so that the material is quickly heated to the vaporization temperature and evaporates to form holes. Laser drilling technology has the advantages of fast drilling speed, high efficiency, good economic benefits, and wide application fields.

The process of laser drilling is an extremely complex thermophysical process of the interaction between laser and matter. Therefore, there are many factors that affect the quality of laser drilling, such as:

1. The energy of the laser pulse;

2. Pulse width;

3. Defocus amount;

4. The repetition frequency of pulsed laser;

5. The nature of the processed material.

Therefore, in order to obtain high-quality holes, the parameters affecting the quality of the holes should be analyzed and understood according to the general principles and characteristics of laser drilling.

The steps of laser drilling are as follows:

1. The first step is to learn more about punching materials and punching requirements;

2. The second step, simulation experiment and detection;

3. The third step is to design convenient and fast fixtures;

4. The fourth step is to design the program;

5. The fifth step is to implement effective drilling and necessary inspections.

What are the auxiliary measures to improve the accuracy of laser drilling?

In order to improve the accuracy of laser drilling, sometimes it is necessary to adopt some auxiliary process and process measures as follows:   

1. Apply a positive pressure on the surface of the workpiece, or install a low pressure chamber on the reverse side of the workpiece, which can help drilling During the process, the vaporized material is removed and the discharge of the liquid phase is increased.

2. Install a photoelectric detector at a safe position under the workpiece to detect whether the workpiece penetrates or not in time.

3. Cover the workpiece with a liquid film or metallic platinum, which can reduce the taper of the hole and prevent splashing of the liquid phase.

4. In order to prevent the melt from accumulating in the hole in time, the material whose vaporization temperature is lower than the melting temperature of the processed material can be placed behind the processed workpiece.

5. Use laser as a processing tool to open pores on the workpiece, and then use other methods to achieve the required accuracy. At present, the mechanical processing of emery is generally used, the hole diameter finishing with punches and metal wires, chemical corrosion methods and so on.

If you want to know other information about laser cutting machine and professional consultation, please pay attention to Leapion laser.


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