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Laser cutting machine factory introduction: laser cutting machine how to cut high anti material

2022-11-09

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  Laser cutting machine manufacturerssaid,Many types of laser technology are affected by their inherent sensitivity to return light, resulting in unstable operation and destructive automatic shutdown during processing, and even causing great damage to the laser, thereby significantly shortening the service life of the laser. Metal laser cutting machine cutting high reflectivity material is an important problem for many laser cutting machine manufacturers. Metal materials with high reflectivity have been difficult to cut with metal laser cutting machines, including copper, aluminum, gold, etc. These materials are also more common in our daily processing.

When cutting high reflectivity materials, some auxiliary gas must be added to increase the cutting speed. So, why do you need to add auxiliary gas to cut high reflectivity metal materials? When the metal laser cutting machine cuts metal copper, the added auxiliary gas will react with the material under high temperature conditions, thereby increasing the cutting speed. For example, the use of oxygen can achieve the effect of combustion. As far as cutting equipment is concerned, nitrogen is an auxiliary gas that can improve the cutting effect. For copper materials below 1MM, a metal laser cutting machine can be used for processing. When the thickness of the metal copper reaches 2MM, if only nitrogen is used for treatment, oxygen must be added and oxidation must be performed to achieve cutting.

Due to the possibility of damage to the lens system, extreme care should be taken when performing reflective metal laser cutting. Special systems and techniques have been developed that do not degrade cutting accuracy. What are these technologies?

In practice, laser cutting machine manufacturers often encounter highly reflective metals such as aluminum. The cutting of these metals requires special attention. Due to its reflective characteristics, if the cutting parameters are not adjusted properly or the surface is not polished, the laser lens may be damaged. In addition to aluminum, laser cutting of stainless steel, which is further processed by polishing, is also a major problem.

  Laser cutting machine manufacturers said,The working principle of the CO2 laser cutting machine is to make the heat of the laser beam completely absorbed by the material, and the reflection characteristics of the metal will cause the laser beam to be rejected. In this case, the inverted laser beam will enter through the head of the lens and mirror system of the laser cutting machine, thereby damaging the machine.

In order to prevent the reflection of the laser beam, several measures need to be taken. For example, the reflective metal is covered with a coating that absorbs the laser beam. This cutting method will not affect the quality and accuracy of cutting, and will not damage the laser cutting machine.

In addition to the above treatment, most modern laser cutting machines are also equipped with a self-protection system. In the event of laser beam reflection, the system will turn off the laser cutter to prevent damage to the lens. The entire system works according to the radiometric principle, I .e. it is monitored during the cutting process. Moreover, technological advances have developed laser cutting machines that can resist this situation, which is fiber lasers.