laser pointer

Fiber laser welding machine is the use of energy fiber, the laser generated by solid-state 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. The use of optical fiber transmission green astronomy laser, you can use the flexibility of the fiber, so that the laser can be arbitrary angle of the workpiece processing, to achieve a multi-dimensional flexible processing. Fiber laser on the laser energy also have a homogeneous effect, the laser spot energy can be modeled output, and the laser for homogenization, so that the laser beam quality is better to improve the quality of welding. The use of energy feedback power output energy laser can do the same spot.

Laser welding technology is a new type of high-efficiency welding technology in the market in recent years, which can greatly improve the production efficiency for multi-point welding. The laser flight welding technique is used by the robot arm movement to cooperate with the high dynamic positioning motion of the laser scanner to transfer the laser beam in the laser to the editable focused optical head (PFO) mounted on the robot by optical soldering, Two high-speed scanning mirrors in the PFO (ie "filters") enable the green laser light beam to perform high-speed precision movement in accordance with the programmed path, and realize the welding of the sheet metal by focusing the telecentric lens. In the automotive industry, laser welding technology can be applied to automotive seat plate, instrument related parts, door structure, trunk lid and other special materials (such as galvanized material) sheet welding process.

From the market growth point of view, according to the type of laser, the next five years, the fastest growing market is the direct semiconductor lasers, mainly kilowatt-class high-power semiconductor lasers; growth is the second fastest quantum cascade laser, this laser advantage obviously, widely used, especially in anti-terrorism, security and other applications play an important role in the future of the global quantum cascade lasers will have a huge demand. Fiber lasers will always maintain a steady growth rate. From the application of the laser market, to remove about half of the optical communications market, the current macro-processing is the largest market, followed by micro-processing, the future with the manufacturing industry continues to high-end development, micro-processing market will have a large growing space.

Please consult your doctor before deciding whether to undergo any blue laser surgery. Depending on your age, overall health status, health care plans, and laser surgery costs, your doctor may advise you to choose a traditional surgical procedure. For example, if your age is less than 18 years old, you should not accept Lasik (excimer laser surgery) ophthalmic surgery. Laser surgery rehabilitation and general surgery almost. A few days before surgery, need to rest enough to take painkillers until the discomfort and swelling of the situation disappeared. The condition of rehabilitation after laser treatment is different depending on the type of treatment received and the treatment of the body.

The main driving factor in the global laser treatment market is the growth in demand for cosmetic surgery. American Orthopedic Association estimated that only 2016 years in the 1.8 million cosmetic surgery and 15.5 million minimally invasive cosmetic surgery. Other market drivers include increased population aging, increased age-related eye disease complications, penetration of laser treatment clinics, and so on. Taking into account all these factors, the global burning laser treatment market is expected to reach $ 9.77 billion by the end of 2023, and the average compound annual growth rate will reach 12.2% during the period from 2017 to 2023.

At present, the growth of demand in the industrial sector has driven the development of high-power lasers on a global scale. High-power burning laser industrial applications can be divided into macro processing and micro-processing. Macro processing includes cutting, welding and marking applications. Micro-processing mainly includes semiconductor, printed circuit boards, flat panel displays and solar cells and other production areas.

In recent years, innovation in the design and manufacturing process of laser diodes has created more benefits for the cost and reliability of high-power laser systems. Compact size, high photoelectric conversion efficiency, low power consumption of laser demand soared. At the same time, with the semiconductor high power laser pointer materials and installation technology improvements, semiconductor laser market is expected in the cutting and welding materials processing areas will continue to expand. In addition, the innovative optical combination program will also provide additives for the laser market.

Tube cutting applications are the most prominent in the global market for fiber lasers, mainly due to the increasing proportion of products in cardiovascular stent production, because these lasers have unlimited cutting configurations, lower production costs and the ability to eliminate stacking tolerances. Other potential and top panels also include 3D cutting, flat cutting and powertrain applications. Fiber laser have excellent beam steering capabilities that are increasingly being used in 3D cutting applications, while the advantages of flat cutting include the need for closer focusing spot size, higher depth of focus, faster processing Speed and greater working distance, thereby reducing workpiece tolerances.

On the application side, 2016, refractive surgery market occupies the 5000mw laser pointer series of the largest share of income, about 70%. The product in the cataract surgery, cystectomy, laser trabecular plasty and other fields also received the fastest growth. Among them, the cataract surgery market is the second largest application of excimer lasers and femtosecond laser systems. In terms of the region, North America will continue to maintain its leading market position, with 2016 percent of the excimer and femtosecond laser systems totaling $ 217 million, or more than 30 percent of the market. Western Europe will continue to promote the application of the product. In addition, the continuous improvement of the medical infrastructure in the Asia-Pacific region is also expected to provide a large number of development opportunities for these products.

It is noteworthy that although sales are difficult to climb, but the projector in recent years, a single product price decline is very obvious, so the two together, in fact, the projection market, the total profit growth is not so optimistic. So 2016 is a very intense competition year, although the new light sources such as LED and 1000mw laser pointer gradually mature to the market has brought a new dawn, but the market environment is not a significant improvement, if you can not expand the market share, New light source of the product is bound to go into the price of the old road competition. So in the long run, the laser light source can bring the stimulus to the projection market out of the difficulties, it is difficult to predict.

Technological progress, environmental protection and the realization of high beam quality at lower cost and other factors to drive the development of the market, to promote fiber laser systems become marking and cutting applications attractive choice. The advent of ultrafast and multi-core fiber laser and the continued growth of fiber lasers in micro-cutting, 3D micro-milling, blind hole processing, optical pumping, scribing, surface treatment and micro-applications drives the global market expansion. Fiber 3000mw laser pointer solutions that are easy to automate and save energy are increasingly replacing traditional methods for mechanical marking, such as chemical etching and ink printing.

Fiber lasers have proven their core competitive advantage in the cutting field. The Yb-doped fiber laser with wavelength of 1070 nm is the ideal light source for laser cutting, excellent beam quality, high anti-material reflection, and high efficiency is the advantage of fiber laser in cutting application. Laser cutting is the use of high-density 5mw green laser beam scanning the surface of the material in a very short period of time the material heated to tens of thousands to tens of thousands of degrees Celsius, the material melting or gasification, and then high-pressure gas will melt or gasification material from the slit Blow away to achieve the purpose of cutting materials. Laser cutting technology is widely used in metal and non-metallic materials processing, can greatly reduce the processing time, reduce processing costs, improve the quality of the workpiece.

Pure titanium can be a good combination of focusing laser beam transformation of thermal energy, auxiliary gas when the use of oxygen when the chemical reaction is intense, faster cutting, but easy to produce oxide layer in the trimming, careless also cause burning. For the sake of safety, the use of air as auxiliary gas is better to ensure the quality of cutting. Aircraft manufacturing industry commonly used titanium red laser pointer cutting quality is better, although the bottom of the slit will have a little sticky slag, but it is easy to clear. Aluminum cutting is melting and cutting, the auxiliary gas used is mainly used to blow away the molten product from the cutting zone, usually get a better cut surface quality. For some aluminum alloys, it is important to prevent the formation of intergranular microcracks on the surface of the slit.

High-brightness fiber laser processing of high thermal conductivity material, it is best to use a small spot to maintain the stability of the welding hole, but this process may make the process is too intense, resulting in a large number of welding splash. Experiments show that high-brightness laser with high-speed positioning of the remote scanning head, significantly reduce the welding splash, which is achieved by beam swing to ensure that the welding hole stability to achieve. By installing a protective device, to avoid damage to the equipment by the back light. Processing of copper and aluminum such high reflective metal, the backlit light is inevitable, the traditional burning laser pointer due to the natural sensitivity of the return light, may lead to processing instability and destructive automatic shutdown, or even scrapped.

Today, in the field of transport, especially in the aircraft and automotive industries, there are lightweight needs, which reduce energy consumption and CO2 emissions and other sustainable development strategies have far-reaching significance. Large-scale manufacturing markets (such as cars) are increasingly demanding fast and low-cost manufacturing processes, including carbon fiber composite molding, joining and cutting processes. The mechanical cutting of long fiber composites will cause the machine tool to be worn and must be replaced by frequent cutting tools to maintain the accuracy of the parts, increasing the processing cycle and manufacturing costs. In addition, machining usually requires water to cool the parts and remove debris and reduce dust. After cutting, in order to reduce the impact of water on the components, often have to dry the parts, extending the entire manufacturing process. Another challenge for water jet cutting is the need for complex water pipelines. Laser technology for the processing of carbon fiber composite material provides no wear, no external and anhydrous processing technology, and fast, high degree of automation, easy to solve the carbon fiber composite mechanical cutting all the shortcomings.

Most alloy structural steel and alloy tool steels can be used to achieve good cutting edge quality by high power laser pointer cutting. Even some high-strength materials, as long as the process parameters control properly, can be straight, non-stick slag trimming. However, for tungsten-containing high-speed tool steel and hot-die steel, laser cutting will have the phenomenon of erosion and sticky slag. Nickel-based alloys also known as super alloys, many varieties. Most of which can be implemented by oxidative melting cutting. With the rapid development of the laser industry, related laser technology and laser products are becoming more mature. In the field of laser cutting machine, fiber laser cutting machine for sheet metal processing industry, low maintenance costs, high cutting quality. Relative to YAG and C02 these two types of laser cutting machine, more market share.

A new generation of fiber lasers is revolutionizing kilowatt-class materials processing. This combination of high-speed scanning system performance, can be achieved before the processing speed and application speed. Anti-high anti-technology to achieve high-reflective material full power, uninterrupted welding, while ensuring continuous and stable weld quality. The combination of high-brightness 1mw laser pointer and scanning systems for the cutting and etching of carbon fiber composites enables high-speed, high-quality machining and minimal thermal impact, and has contributed to the development of advanced new materials processing technologies.

Artificial electromagnetic materials are material materials that control light in an unusual way at nanoscale. They can be used to develop foreign equipment such as invisible cloaks to quantum computers. But the problem is that the metamaterials they use usually contain metals that absorb energy from light and convert it into heat. As a result, a portion of the optical signal is wasted, reducing the efficiency of the device. A photonics 500mw laser pointer research team led by Shaya Fainman, an electrical engineering professor at the University of California, San Diego, demonstrated the use of metallic materials that add excitation light to compensate for these optical losses, an optical semiconductor.

Laser cutting has the same advantages as conventional processing methods. In the thermal cutting method, oxygen-combustible (such as acetylene) cutting and plasma cutting can not concentrate as much energy as a laser beam in a very small area, resulting in large incision width, large heat affected area and more obvious deformation of the workpiece. Oxygen- combustible cutting equipment is small, less investment, can cut up to 1m thick steel plate, is a very flexible cutting tools, mainly used to cut low carbon steel. However, due to its large heat affected area, cutting speed is low, the incision appears serious jagged and corrugated. Therefore, it is rarely used to cut the thickness of 20mm or less and require accurate size of the material. Plasma cutting is similar to 400mw laser pointer cutting speed, significantly higher than acetylene flame cutting. But its cutting energy is low, trimming at the top of a round head, cut from the obvious waveform.

In operation, but also to prevent the arc generated by the UV radiation on the operator of the damage. Conventional fiber lasers use fiber-coupled technology to couple multiple laser outputs together, resulting in lower brightness of the output laser. The new generation of fiber lasers uses an innovative architecture that combines the pump diodes and drivers into separate pump modules. The gain fiber is mounted in a configurable gain module that can output more than 8kW of laser power. The gain module is based on the novel main oscillator / power amplifier (MOPA) design, enabling high-brightness 300mw laser pointer output. In addition, the Ennie laser also uses a reliable integrated backlash isolator to protect all modules from the impact of backlit light, can be high anti-material for full power, uninterrupted, stable processing. These two technological innovations play a vital role in RLS applications.

For iron and steel enterprises, the establishment of laser processing sheet metal distribution center, has a unique advantage. First, the production of sheet metal production and sales base, over the years to establish a wide range of sales channels, customer relations and sales network, the production and sales base of the plate, ; The small batch, multi -species needs of users, can directly provide the finished product after 10mw laser pointer precision processing to extend the service chain of the product, resulting in a secondary benefit; cutting waste can be quickly recycled; at the same time, reduce the intermediate transport links, Cost savings, to maximize the profits. And behind all this, laborers can provide long-term, strong technical support.

This is the first time with metal and semiconductor coexistence of a material. If light is one of the ways of polarization, the metamorphic light will be like metal, and when light is polarized in other ways, the metamaterial absorbs and emits light in different colors, like semiconductors, "says Smalley. The new metamaterials, first grown into a crystalline semiconductor material, are called indium gallium arsenide, are on the substrate. Then they use plasma blue laser pointer high-energy ion etching to narrow the grooves to achieve the semiconductors, create 40 nanometers wide and the line spacing of 40 nanometers.Finally, they use silver to create an alternate striped pattern and a silver nanocrystalline trench.

Laser cutting is a kind of high energy density controllable non-contact processing. It focuses the burning laser beam into a spot with a minimum diameter of less than 0.1mm, so that the power density at the focal point can exceed 107W to 108W / cm ~ 2. The irradiated material is quickly heated to the vaporization temperature and evaporated to form pores. As the beam moves relatively linearly with the material, the apertures are continuously formed with slits of about 0.1 mm in width. The cutting also adds auxiliary gas to the material to be cut to accelerate the melting of the material, blown away the slag or protecting the slits from being oxidized.