The optical fiber laser cutter is a fast and efficient way to produce a variety of products through laser technology. But how exactly does it work, and what is the principle behind it?
This laser cutter uses a laser beam to cut through materials such as metal and plastics. The laser is generated by a process where photons are emitted from a source and then amplified in an optical fiber. This process creates a high-intensity beam of light that is focused onto the material to be cut.
The laser beam has a long wavelength, which allows it to penetrate through many materials without causing damage to the surface. The focused laser beam heats up the material to the melting point, and with the help of a gas, like oxygen or nitrogen, it cuts through the material as it melts.
There are many applications for this technology, including in the automotive industry for cutting metal parts, in the medical industry for cutting surgical instruments, and in the aerospace industry for cutting and shaping various materials. The optical fiber laser cutter is an essential tool for manufacturing and precision cutting, and it is a perfect example of how technology can revolutionize many industries.
The two types of optical fiber laser cutters are distinguished by their internal and external optics.
I. Internal optics
1. Cutting principle
The laser machine is a powerful tool that is capable of generating a high-density laser beam, which can be used for cutting various materials. The beam is focused onto the metal sheet, providing high energy that instantly melts or vaporizes the material. The process is completed with the use of high-pressure gas, which helps to remove the molten material completely, leaving a smooth cut. The machine offers three-axis cutting, allowing precise cuts to be made in all directions.
2. Generation of Laser
Laser beams are produced by converting electrical energy into light energy. However, due to the inherent inefficiency of energy conversions, the process is not 100% efficient. As a result, a portion of the electrical energy is transformed into light energy, while another portion is dissipated as heat energy.
Currently, the fiber laser's electro-optical conversion rate ranges from 25% to 35%. A laser's electro-optical conversion ratio improves with better performance, resulting in reduced energy consumption. The more significant the electro-optical conversion ratio, the less energy it consumes. In contrast, a lower electro-optical conversion ratio results in higher energy consumption.
3. Heat Generation
The conversion of energy allows for the transformation of electric energy into light energy, resulting in the production of laser. Let's create another similar content by rearranging the provided information but with a different approach in how it is presented.
As we all know, electric energy can be used to produce light energy, but it should be noted that this conversion is not 100% efficient. In fact, a portion of the electric energy will be converted to heat energy due to the characteristics of energy flow. This is because, as we also know, it is impossible to have energy without the presence of heat. Therefore, when thermal energy is generated in the laser during the conversion process, it can cause damage to the components inside the laser. It is crucial to keep in mind this potential issue when using lasers to produce light energy.
In order to remove the excess heat from a system, such as a HVAC system, it is necessary to use a chiller. This is because water is essential for removing the heat and without the use of a chiller, the heat cannot be effectively removed. The chiller works by cooling down the water and circulating it through the system, effectively removing the heat and maintaining a comfortable indoor temperature. Overall, the use of a chiller is crucial for proper functioning of a HVAC system and for creating a comfortable indoor environment.
II. External optics
1. Transmission of light
When the optical fiber laser generator emits light, it is transmitted through the optical fiber to reach our laser head. However, during this transmission process, the optical fiber experiences energy loss when connecting to the laser head. This loss occurs because the propagation of light is diffusive, resulting in a phenomenon known as astigmatism. It is worth noting that light beams are distinct from one another and can approach each other indefinitely without ever intersecting. This unique characteristic gives them a shape resembling a waist. To generate highly similar content based on the original text information, one could rearrange and rephrase it as follows:
The light generated by the optical fiber laser generator is transferred to the laser head through the optical fiber. At the point of joining the laser head, the optical fiber experiences some energy loss. This is due to the diffusive nature of light propagation, leading to what is known as astigmatism. Importantly, light beams are mutually exclusive, able to approach each other infinitely but never cross paths. This distinct behavior gives them a waist-like shape.
The released light rays from the fiber optic head exhibit a sinusoidal waveform.
2. Processing of waveform light
In order to effectively capture and concentrate energy, waveform light cannot be used directly. Therefore, it is necessary to employ collimating mirrors to transform the waveform light into a more parallel form, although not completely parallel. This step is crucial for processing the light and optimizing energy collection. To reiterate, the utilization of collimating mirrors is indispensable when dealing with waveform light to ensure its close resemblance to parallel light, albeit not perfectly parallel.
3. The Role of Focusing Mirror
A focusing mirror serves the purpose of gathering and consolidating light rays that have undergone almost parallel processing, resulting in the formation of highly concentrated areas.
