Beautiful Life

Energy negative feedback fiber burning laser welding machine has the following advantages: energy negative feedback principle is the laser light moment in the laser at the same time take a small part of the laser energy, input energy feedback probe; according to the laser energy settings, energy feedback controller to compare the laser energy Size; control of intelligent laser power from time to time to amend the laser energy, so that laser energy stability.

Optical fiber transmission laser welding machine is the use of energy fiber, the solid-state laser generated 1064nm laser, through the laser coupling technology to the fiber, and then the fiber in the laser through the output mirror to the workpiece surface, to achieve the purpose of welding; Laser, you can use the flexibility of the fiber, so that the laser can be any angle on the workpiece processing, to achieve a multi-dimensional flexible processing; fiber on the laser energy and homogenization of the blue laser pointer spot energy can be modeled output, and laser Homogenization, so that the laser beam quality is better to improve the quality of welding.

The use of advanced laser power real-time feedback control system to avoid fluctuations in the power grid, water temperature fluctuations, xenon lamp aging and other reasons caused by the impact of the laser power output, The effect of laser energy. So that the size of the solder joints uniform, the depth of the same; can be time spectroscopy, energy spectral, suitable for a variety of different applications, at the same time multiple station processing.

After the optical fiber transmission by the laser light speed of good quality, spot fine, uniform energy distribution; initial section of power stability, change small, improve product qualification rate. It is believed that with the laser equipment line to the energy negative feedback fiber 30mw green laser welding machine research and development efforts to increase the energy negative feedback fiber laser welding machine development will be getting better and better. In layman's terms, energy feedback can well control the average distribution of the speed of light and reduce the unevenness of welding.

Laser marking machine due to efficient, environmentally friendly, no supplies and permanent advantages, and now industrial production has been widely used. According to a variety of materials and process requirements, 2000mw laser pointer marking machine can be subdivided into many types. Large format dynamic focus laser marking machine for most of the non-metallic materials such as leather, fabric, wood, bamboo, paper, organic materials such as marking, carving, hollow, cutting.

Laser marking is the most common way of marking in modern times. The major manufacturing industry is love endless. With the development of technology and scientific progress laser marking machine more and more widely, according to people's needs, to meet the requirements are more and more. Laser marking can be applied to non-metallic applications including plastics, silicon, ceramics, rubber and so on. Can be applied to small format 70 * 70mm can also be used for the largest format 1500 * 1500mm. So for the large-format 500mw laser pointer marking machine, the role of those there? What are the benefits of marking a sample with a laser? Why people in the continuous development of various types of laser marking equipment to meet the needs of various types of people?

Permanent, such as marking will not be due to environmental relations (touch, acid and degrading gas, high temperature, low temperature, etc.) and subsided; security, marking using laser marking technology is not easy to imitate and change, to a certain extent with Strong non-contact; non-contact, laser marking is non-mechanical "light knife" for processing, can be printed on any regular or irregular surface mark, and after marking the workpiece will not produce internal stress, to ensure that the workpiece Original accuracy. The development of fast, due to 300mw laser pointer technology and computer technology, the user as long as the computer can be programmed to achieve laser print output, and at any time to change the print Design, fundamentally replaced the traditional mold making process.

(Aluminum, copper, iron, wood products, etc.) processing; high precision engraving, laser marking machine engraved items fine pattern, the minimum line width of the material, the use of laser processing equipment, can be a variety of metal, non-metallic materials (aluminum, Up to 0.04mm. Mark clear, lasting, beautiful. The 400mw laser pointer marking meets the need to print large amounts of data on tiny plastic parts. For example, you can print a more accurate and more accurate two-dimensional bar code, compared with embossing or jet marking, there is a stronger market competitiveness; low operating costs, marking speed and marking a molding, Low energy consumption, and thus low operating costs; processing efficiency, marking process can be completed in a few seconds.

Laser marking and traditional mechanical engraving, chemical corrosion, screen printing, ink printing, etc., compared with low cost, high flexibility, can be computer system control, and laser on the surface of the workpiece produced by the strong permanent Its prominent features. At present, in the marking printing industry, 2000mw laser pointer marking has occupied more than 90% of the market. So whether it is large-format dynamic focus laser marking machine or fiber laser marking machine or CO2 laser marking machine is a modern social development and progress of a logo, it is a new breakthrough in the laser industry.

https://laserman123.lighthouseapp.com/projects/136232-beautiful-life/tickets/1-simulation-method-of-analytical-laser-3d-printing-composites

http://articles.org/a-new-method-of-beam-quality-detection-for-high-power-laser/

http://www.figure.fm/en/post/58111/A+New+Method+of+Beam+Quality+Detection+for+High+Power+Laser.html

A year ago, people first detected the gravitational waves directly. From the Planck Institute for the Study of Gravitational Physics (Albert Einstein Institute AEI), as well as from the University of Leibniz, Hanover, as well as from the Hannover Laser Center (LZH) laser experts in this discovery played a major , Because they use the high power laser pointer interferometric gravitational wave in the United States. The core instrument in the Observatory has ultra-precision laser technology to detect weak gravitational wave signals.

Now, researchers at the Einstein Institute have proposed two new technologies that will not only further improve the sensitivity of future gravitational wave detectors. The Max Planck Society now also strengthens the development of the third generation of gravitational wave detector laser systems. The Einstein Institute, in cooperation with the Hannover Laser Center, has invested $ 3.75 million in research funding for the next five years to develop the new laser Zentrum, which has received more than $ 3.75 million in research funding for the next five years New lasers and improved its stability. "We've made an important breakthrough," says Professor Benno Willke, who is the head of the Einstein Institute's Laser Development Group. "Our job is to further study another new type of green astronomy laser beam used in interferometric gravitational wave detectors, and we have shown how to improve power stability, that is, the stability of high power lasers used in detectors.

The beam of the gravitational wave detector currently used for all laser systems has a higher strength than the edge of the beam. This will lead to a problem of measurement accuracy of gravitational wave detectors that do not wish to be caused by fluctuations in the specular surface. This so-called thermal noise can be improved by a more uniform laser intensity distribution. In 2013, the team demonstrated how to get a more uniform high-power laser beam, creating the so-called LG33 model. Now, Andreas Noack has completed his master's thesis, Benno Willke's team is trying to apply these 2000mw green laser beams to future gravitational wave detectors.

The first step into the detector is a device called a predictive mode cleaner that optimizes the beam profile and reduces beam jitter. Willke's team found that the new LG33 beam was compatible with the current predictive cleaning model used. The researchers also showed how to solve this problem. They have developed a new pre-cleaning mode that is compatible with the LG33 laser mode. "The design of the next generation of gravitational wave detectors has not yet been completed," Willke said. "So we are testing different types of lasers and finding as many options as possible to achieve the new gravitational wave detectors.With the LG33 laser beam, we are now making a big step forward."

All interference gravitational wave detectors, such as LIGO, VIRGO and GEO600, all rely on burning laser pointer systems and need to keep their high output power stable for a year, and their power fluctuates very little on time scales. Benno Willke's research team has a world-leading position in this research area. They built the laser system GEO600 and advanced LIGO, without such a device, the first direct probe gravitational wave in 2015 was impossible to achieve.

Now, Jonas Junker has further refined the existing power stabilization system in Willke's team of master's studies. A portion of the laser beam is removed to achieve a plurality of distributed distributions of the detectors to accurately determine the total power. If so, the main laser power is corrected accordingly. In their experiments, the scientists expanded the current system, in addition, another photodetector can also control and correct the Gatling laser pointer beam pointing.

In the Einstein Institute, the improved power stabilization solution has been successfully applied to a 10-meter prototype interferometer for a 35-watt 3000mw green laser system. The prototype was modeled and tested by Hannover researchers for the technology of the third generation of detectors, and the quantum mechanics effects were studied in these instruments. Power stability of five times higher than other groups of comparable experiments. This result is very good with the results of an independent desktop experiment.

"Experiments in optical labs that are isolated from the external environment are completely different from the 10m prototype complex experiments, and for the first time we have found that it can be transferred from a level of stability in a desktop experiment," Willke Say. "We found that these photodiode arrays work as expected, which means that it should also be used for the same multi-detector array, applied to advanced LIGO, and to achieve this high stability."

Since the first laser in 1960, laser technology research and its application in various fields has been rapid development. Compared with the traditional processing methods, laser processing technology has high coherence, high directivity and high brightness has been widely used in industrial, military, scientific research and daily life, especially in the past 20 years, burning laser pointer manufacturing technology has infiltrated many high-tech Technology and industry, the most prominent of which is developed over the last decade developed countries set precision machinery, computers, numerical control, laser, new materials in one of the new manufacturing technology - rapid prototyping technology (also known as 3D printing technology) , The application of this technology development equipment - rapid manufacturing system, in recent years with more than 40% of the high growth rate.

Laser Rapid Manufacturing Technology (LRMT), also known as laser rapid prototyping technology or laser 3D printing technology, is a computer-aided design, or with the physical reverse method to obtain the prototype or part of the geometric shape, structure and material combination information, Then, the information is transferred to computer-controlled 500mw laser pointer rapid prototyping manufacturing system with light, machine and electricity. By using the laser as a tool, the material can be realized by point-by-point, face-to-face Dimensional pile-up ", and then through the necessary treatment, so that the appearance, strength and performance to meet the design requirements, to quickly and accurately manufacture the prototype or the actual parts and components, without the traditional mechanical processing machine tools and molds technology.

In the broad sense, rapid prototyping belongs to additive forming; in the narrow sense, rapid prototyping should belong to discrete / accumulation forming, that is, according to the three-dimensional design model of the components, the slicing is done by rapid prototyping machine , The two-dimensional profile of the cross-section of each layer is obtained, and the entities to be formed are sequentially superimposed according to these contours.

The whole process of high power laser pointer rapid manufacturing can be summed up in the following three steps: Preprocessing It includes the construction of 3D model, the approximate processing of 3D model, the selection of model forming direction, the slicing of 3D model, polishing and surface strengthening. Under the control of the computer, the corresponding forming head (laser head or nozzle) according to their profile information to do the scanning movement, the workstations layer by layer of the accumulation of material, and then will be a layer of free forming. The layers are bonded and the prototype product is finally obtained.

The molded article is taken out from the forming system and subjected to peeling, post-curing, repairing, grinding, polishing, coating, or final sintering in a high temperature furnace to further enhance its strength. At present, rapid laser manufacturing technology research, according to the different objects and functions can be divided into two categories, namely, rapid prototyping and metal parts rapid and direct manufacturing technology.

Laser rapid manufacturing technology in recent years, one of the fastest growing industrial areas. Relative to the traditional manufacturing process, in accordance with the complexity of the parts and methods used in different, often require weeks or even months of processing time. Based on the computer geometry, structure and connection status of the description, rapid manufacturing of 2000mw laser pointer manufacturing time from a few hours to dozens of hours to complete. It is foreseeable that laser rapid manufacturing technology will have an important impact on the production, processing and manufacturing of materials today.

In recent years, the rapid manufacturing technology based on laser technology (LRPT) is in rapid development, showing three characteristics: First, the rapid emergence of new laser manufacturing process; Second, supporting hardware and software continue to improve; Broaden. Recent developments in LPRT technology include stereolithography (SLA), Selective Laser Sintering (SLS), Laser Laminate Manufacturing (LOM), Laser Cladding (LCF), Laser Near Forming (LENS) , Direct optical manufacturing (DLF), metal laser sintering (DMLS), and shape deposition fabrication (SDM). The following brief overview of several major brightest laser pointer rapid prototyping technology overview.

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