Laser marking / welding / cutting applied to rail transit

  At present, China's rail transit is facing the development of high-speed passenger cars, subway buses, light rail cars and high-speed heavy trucks, train light weight is the preferred condition to improve the speed of the train. Aluminum alloy with light weight, corrosion resistance, good appearance and easy to create complex surface, higher than the advantages of high strength, can reduce the weight to reduce the running resistance, reduce energy consumption, increase the load, so in the world rail transport industry has been Develop. The body, the bogie as an important component of high-speed trains, its quality affects the safety of the entire high-speed train. With the rapid development of China's high-speed railway, body materials from ordinary alloy steel materials to the development of stainless steel, aluminum profiles. Material changes, naturally led to the improvement of processing technology, laser cutting, laser welding of advanced technology also will be introduced to the railway vehicle manufacturing line.

Application of laser welding machine

  The first requirement of the locomotive body is solid, high dimensional accuracy, stable quality, exquisite appearance. The use of metal materials to meet the strength of the body, and has anti-collision, durable, fire, and renewable use. Stainless steel vehicles because of its better impact energy absorption characteristics, fire safety, lightweight and low maintenance costs, has become one of the important direction of development. Although the stainless steel welding performance is excellent, but the stainless steel body and ordinary carbon steel body compared to easy to produce thermal deformation, therefore, lower heat input, non-contact type, continuous welding laser welding is an ideal welding method.

Application of laser cutting machine

  At present, laser technology is mainly used in the field of rail vehicle manufacturing for sheet metal and profile cutting, key parts welding, automatic production line material transport and identification of transplant and other places. Locomotive steel structure of about 20% to 30% of the special parts, especially the locomotive cab, body auxiliary devices and other components, more suitable for the choice of laser cutting. Laser cutting is easy to achieve automation of cutting process control, can greatly shorten the production cycle and reduce manufacturing costs and improve product quality, has now been part of the stamping process and mechanical processing technology.

Application of laser marking machine

  The application of laser technology in the field of rail vehicle manufacturing is not only used as cutting energy for cutting and welding as a welding source for key components, as well as other applications. Such as in the automatic welding equipment as a key device for positioning and tracking - laser scanning with the positioning system. In the quality control system, the introduction of micro-marking and bar code management system, the use of laser marking machine in the plate parts engraved on the depth of 0.1mm parts encoding, for the realization of the original steel plate material and part name, code and other encoded information Identify the transplant. Through effective management, you can achieve the whole process of product quality tracking, improve the quality of management.