1. CO2 laser cutting machine:
CO2 laser cutting machine can cut both metal and non-metal materials. Usually it can cut 3-5mm carbon steel and stainless steel. CO2 laser wavelength is 10.6um, which is more easily absorbed by the non-metallic. It can cut wood, acrylic, PP, plexiglass and other non-metallic materials. So it’s usage is widely in all kinds of industry.
Can cut 5 mm or less metal sheet less than 60 mm acrylic plate, wood board, PVC board, and can cut in hight speed. Further, since the CO2 laser output is continuous, which can give the smoothest and best cutting effect among the three laser cutting machines.
CO2 laser tube has lifetime and both reflecting mirrors and foucs mirros need to be changed after a period of time usage.
2. YAG solid-state laser cutting machine:
Low prices, good stability, but the low energy efficiency is generally <3%. The output power of the current products is mostly in the 800W or less. Since the output energy is small, mainly used for drilling and cutting sheet metal. It is a green laser beam in the case of pulsed or continuous wave applications, with a wave length, condenser and good especially suitable for precision machining the hole machining pulses in the most efficient, it may also be used for cutting, welding and lithography. YAG solid-state laser wavelength of the laser cutting machine can not easily be absorbed by non-metallic. So it can not cut non-metallic materials. What the YAG solid-state laser cutting machine needs to solve is to improve power supply stability and longevity, that is, to develop high-capacity, long-life light pump an excitation light source such as a semiconductor optical pumping can significantly increase energy efficiency
Can cut aluminum, copper and most non-ferrous metal materials that other laser cutting machines can not reach. Machinery and purchase cheap, low cost, easy maintenance, most of the key technology has been mastered by domestic enterprises, parts prices and maintenance costs low, machine operation and maintenance is simple, less demanding on the quality of staff workers.
Only 8mm below the cut material, and the cutting efficiency is very low
3. Fiber laser cutting machine
Because the fiber laser cutting machine can be transmitted through the fiber, so the degree of flexibility is improved than ever before. With fewer points of failure, easy maintenance, fast. So when cutting within the sheet 4mm fiber cutting machine, it has a great advantage, but influenced by the solid-state laser wavelengths so it is poor quality when cutting slabs. The wavelength of fiber laser cutting machine is 1.06um, which can’t be easily absorbed by the non-metallic, so it can not cut non-metallic materials.
Low photoelectric conversion rate, low power consumption. It can cut a stainless steel plate, carbon steel plate within 12mm. It is the fastest laser machine to cut thick metal sheet. It’s cutting is with a small slit, good quality light spot, and can be used for fine cutting.
Most of the machines are expensive. Since the optical fiber is very fine kerf great air consumption (particularly in cutting nitrogen). The fiber laser cutting machines can not cut aluminum, copper etc which is highly reflective material, and the cutting speed is very slow to cut slab metal sheets.