Remote Laser Processing Technology
Posted by laserman123 , 24 February 2017 · 309 views
High-power, high-brightness fiber lasers make rapid laser scanning (RLS) applications rapid development. Compared to other technologies, RLS has greater flexibility and faster processing speed, and greatly reduce the large-size workpiece processing cycle. The key to the design of the RLS system is the working distance of the scanning head, the size of the focal spot, and the scanning range. One advantage of using a high-brightness fiber 20mw laser pointer is that it can increase the working distance and scan range while achieving a smaller focal spot size to increase the welding speed and increase the weld penetration.
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 200mw 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.
Another application with high-speed scanning of fiber 100mw laser pointer with significant advantages is the cutting, 3D shaping and drilling of carbon fiber composite materials (CFRP). Carbon fiber composites, also known as carbon fiber laminates, are widely used in automotive lightweighting and are a new generation of more energy efficient and safe manufacturing materials. Carbon fiber composite material is a high-purity carbon fiber braid and hardened composite materials (such as epoxy resin) bonding, very strong and hard.
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 50mw laser pointer 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.
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 30mw laser pointer 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. Welding copper, aluminum, if you do not use the beam swing mode, welding splash will be very serious. Once the high-frequency swing beam is used, the splash will be reduced. In addition, En-resistant laser's original anti-high anti-technology in this application is also indispensable, by installing a protective device to avoid the equipment by the back light damage. Processing of copper and aluminum such high reflective metal, the backlit light is inevitable, the traditional laser due to the natural sensitivity of the return light, may lead to processing instability and destructive automatic shutdown, or even scrapped.
A new generation of fiber lasers is revolutionizing kilowatt-class materials processing. With its unique architecture, nLIGHT altaTM offers the industry's highest brightness kilowatt-class lasers. 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 burning 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.