Due to the different physical characteristics of lasers, the processes of CO2 lasers and fiber lasers are different. In other words, they all have their own advantages and disadvantages, and have their own advantages and disadvantages according to the processing object.

CO 2 laser cutting machines are usually illuminated by laser tubes that drive laser power. The light is transmitted to the laser head through the refraction of multiple mirrors, and is concentrated to a point through the focusing mirror installed on the laser head. Therefore, the treated material sublimates into gas at very high temperature and is sucked away by the exhaust fan to achieve the purpose of cutting.

The fiber laser cutting machine needs a fiber laser generator as the light source. Fiber laser is a new type of fiber laser developed in the world. It emits a laser beam with high energy density and concentrates on the surface of the workpiece, so that the area of the workpiece is illuminated, and is immediately melted and vaporized by the ultra-fine focus. Automatic cutting can be realized by moving the point lighting position through high-speed and high-precision numerical control mechanical system.

Applicable industries

There are two main conditions suitable for CO2 laser cutting machine. On the one hand, this is a special part that needs to be cut evenly, including stainless steel with a thickness of no more than 3mm and non-metallic materials with a thickness of no more than 20mm, which can be used in advertising, decoration and other service industries. On the other hand, it can also be machined. Workpieces with complex cutting profiles but few in number. It is also used to save the cost and cycle of mold manufacturing.

Optical fiber laser cutting machine is widely used in sheet metal processing, aviation, aerospace, electronics, electrical appliances, subway parts, automobiles, grain machinery, textile machinery, engineering machinery, precision parts, ships, metallurgical equipment, elevators, household appliances, craft gifts, tool processing, decoration, advertising, hardware processing, kitchen processing and other manufacturing and processing industries.

Comparison of advantages between optical fiber laser cutting machine and carbon dioxide laser cutting machine

1. Structure comparison with laser device

In CO2 laser cutting technology, CO2 gas is the medium to generate laser beam. However, fiber lasers are transmitted through diodes and fiber optic cables. The fiber laser system generates laser beams by pumping multiple diodes, and then transmits them to the laser cutting head through flexible optical cables rather than through mirrors, which has many advantages. First, it is the size of the cutting table. In gas laser technology, mirrors must be set within a certain distance. There is no limit to the scope of fiber laser technology. Even the fiber laser can be installed next to the plasma cutting head of the plasma cutting bed. CO2 laser cutting technology does not have this option. Moreover, compared with the gas cutting system with the same power, the system is more compact due to the ability of fiber bending.

2. Comparison with electro-optic conversion efficiency

The most important and most important advantage of fiber cutting technology should be its energy efficiency. With the help of the complete solid state digital module and single design of fiber laser, the complete solid state digital module and single design of fiber laser cutting system have higher electro-optical conversion efficiency than carbon dioxide laser cutting. For each power unit of CO2 cutting system, the actual general utilization rate is about 8% to 10%. For fiber laser cutting systems, users can expect higher power efficiency, between 25% and 30%. In other words, the optical fiber cutting system consumes three to five times less energy than the carbon dioxide cutting system, which improves the energy efficiency by more than 86%.

3. Comparison with cutting effect

Fiber laser has short wavelength characteristics, which can increase the absorption of cutting materials to the beam, and can cut materials such as brass, copper and non-conductive materials. More concentrated beam will produce smaller focus and deeper focus depth, so fiber laser can cut thinner materials and medium thickness materials more effectively and quickly. When cutting materials with thickness not exceeding 6mm, the cutting speed of 1.5kW optical fiber laser cutting system is equivalent to that of 3kW CO2 laser cutting system. Since the operating cost of fiber cutting is lower than that of conventional carbon dioxide cutting systems, this can be understood as an increase in production and a reduction in commercial costs.

4. Comparison of maintenance costs

Fiber laser cutting is more environmentally friendly and convenient in machine maintenance. For example, the CO2 laser system needs regular maintenance; The rearview mirror needs maintenance and calibration, and the resonator needs regular maintenance. However, the fiber laser cutting solution requires little maintenance. CO2 laser cutting system needs CO2 as laser gas. Therefore, due to the purity of carbon dioxide gas, the chamber should be cleaned regularly and polluted. For 1000W CO2 system, this item requires at least 20000 dollars per year. In addition, many CO2 reductions require the use of high-speed axial flow turbines to transport laser gas, which require maintenance and refurbishment.