Optical fiber laser cutter has a wide range of applications and can be produced quickly and efficiently by laser. How does the optical fiber laser cutter cut by laser? How does the laser generate and what is its principle?
The optical fiber laser cutter is divided into internal and external optics.
I. Internal optics
1. Cutting principle
Laser is a laser generator that releases an ultra-high density laser beam. It irradiates the metal plate through the beam spot, melts or vaporizes the cutting material instantaneously at high temperature, then blows off the melted melt and residue with high pressure gas, thus realizing the slit cutting, and then realizes the cutting through three axes linkage of X, Y and Z.
2. Generation of Laser
Laser is converted from electrical energy to light energy, because the conversion between energy and energy can not be 100%, so one part of electric energy is converted into light energy while the other part is heat energy.
At present, the electro-optical conversion rate of the fiber laser is 25% - 35%. The better the performance, the higher the electro-optical conversion ratio of the laser. Of course, the larger the electro-optical conversion ratio, the smaller the energy consumption. The lower the electro-optical conversion ratio, the greater the energy consumption.
3. Heat Generation
Laser is converted from electric energy to light energy, because the conversion between energy
and energy can not be 100%, so while one part of electric energy is converted into light energy, the other part becomes heat energy. (When there is energy, there is heat.) When this part of thermal energy is generated, it will stay inside the laser and damage the components inside the laser.
Therefore, water is needed to take away this part of the heat, so a chiller is needed.
II. External optics
1. Transmission of light
When the optical fiber laser generator generates light which is transmitted to our laser head through the optical fiber, then the optical fiber loses some energy when it joins the laser head. Because the propagation of light is diffusive, this kind of light is also called astigmatism. Because light and light are mutually exclusive, they can approach each other infinitely, but never intersect. Their shape isIt's like a waist.
When they are released by the fiber optic head, they show a wavy shape.
2. Processing of waveform light
Since waveform light is not conducive to collecting and concentrating energy, collimating mirrors are required to process waveform light close to parallel light, and of course not absolutely parallel light.
3. The Role of Focusing Mirror
The purpose of a focusing mirror is to collect and aggregate light that has been processed almost parallel to each other to form super-dense spots.
4. The Role of Protecting Mirrors
When the optical fiber laser cutter is in use, some metal dust and debris will be produced, and some of them will enter the cutting head of the laser cutter, so the protective lens needs to be isolated and protected.(Protective lenses are consumable, with an average of 1 piece damaged each month, although the amount of loss varies depending on the strength of the equipment and the scene)
5. Role of Laser Copper Nozzle
After the laser passes through the protective lens, it is released through the laser copper nozzle. (Like the protective lens, the laser copper nozzle is a consumable item, with an average of two damages per month, but also like the lens, the amount of loss varies depending on the strength of the equipment used and the scene.)
