Laser can be used in a variety of laser cutting machines, such as: optical fiber laser cutting machine, CO2 laser cutting machine, YAG solid laser cutting machine
(1) Operation requirements and maintenance
CO2 laser needs optical path adjustment, and the effect of optical path adjustment will affect the cutting quality. Therefore, operators need to have certain skills and maintain external optical path.YAG solid state laser has obvious thermal lensing effect and needs constant maintenance.Fiber laser fiber transmission, no regulation, no maintenance, high stability, easier operation.
(2) Cutting speed and effect
The cutting speed of fiber laser is 2-3 times that of CO2 laser with the same power. Especially in metal sheet cutting, the cutting speed of fiber laser cutting machine has obvious advantages among three kinds of laser cutting machines.Fiber laser cutting machine has good beam quality, small cutting gap and flat cutting edge.
(3) Material applicability and application industry
CO2 laser is more widely applicable to materials, while fiber laser is more applicable to metal materials, including aluminum, copper and other highly reflective materials, which is more in line with the processing requirements of sheet metal manufacturing, 3C household appliance industry and new energy industry.
(4) Energy consumption degree and comprehensive cost
The photoelectric conversion rate of fiber laser is more than 30%, that of CO2 laser cutting machine with the same power is about 10%~15%, and that of solid laser is 3%.The power consumption of fiber laser is only 20-30% of that of CO2 laser with the same power, and the comprehensive cost is lower.
Optical fiber laser cutting is more precise, the focus can reach 25um, the heat affected area is small, the slit is small, the workpiece deformation is small.As a flexible processing method, fiber laser can be combined with the automatic control system to realize automatic tracking, automatic edge finding and automatic nesting, which greatly improves the production efficiency. It is widely used in metal sheet cutting, performs better, and can better meet the requirements of fine cutting processing.At present, fiber lasers have replaced a considerable part of CO2 lasers and YAG solid-state lasers in the application of metal sheet cutting, and breakthroughs in the development of high-power fiber lasers in the future may accelerate this trend of substitution.