In order to do a good job, workers must first use their tools. With the rapid development of high-speed railway, shipping, petrochemical, aerospace and other fields in China and the continuous breakthrough of laser cutting technology, the requirements of high power, large format, high-speed cutting, ultra thick plate cutting, bright surface cutting, and high perpendicularity of incision have gradually become the development direction of Wanwa laser cutting machine. The market scale of laser cutting processing is getting larger and larger, and the golden age of laser cutting industry has come.

In recent years, the heat of Wanwa laser cutting machine continues to rise. The key of Wanwa laser cutting machine is "Wanwa". Its optical path system is mainly composed of Wanwa laser, transmission fiber and laser head. In order to make the Wanwa laser cutting machine have a stable cutting effect, you must first have a stable and powerful laser light source, which comes from the laser.

The lasers of the 10000 watt laser cutting machine belong to the category of continuous lasers. The continuous lasers are divided into single-mode lasers and multi-mode lasers. Taking the well-known laser manufacturers in China as an example, the single-mode continuous laser power can reach 6000W, which is the highest output power level that can be achieved by domestic single-mode continuous lasers at present. When there is only one pump module in the laser, it is called a single-mode laser, that is, the 6000W single-mode continuous laser only contains one pump module.

At present, the domestic lasers equipped with the Wanwa laser cutting machine are all multimode continuous lasers. Generally speaking, high-power multimode continuous lasers are formed by coupling the low power single-mode continuous laser light source through the beam combiner. For example, the multimode continuous laser of 12000W laser cutting machine can be coupled with two 6000W pump modules. The fewer single pump modules used by a multi module continuous laser, the higher the reliability, the more modules, the more complex the circuit, and the higher the damage rate. At present, China's ten thousand watt lasers are mainly multimode continuous lasers.

The following explains why the laser beam emitted by the ten thousand watt laser can cut super thick plates.

Single mode laser fiber has thin core diameter, thin light spot and high concentrated energy, and the core diameter of single mode laser is generally 50 μ m、100 μ M is the standard, while the ten thousand watt laser passes the ultra high power laser beam through 100 μ M fiber core diameter.

Relation between cutting effect of different materials and laser power

Bright surface cutting has the characteristics of smooth section, small surface taper, fast cutting speed, being used for cutting complex graphics, and no burning angle. There is a limit power. When the laser power does not reach the limit power, the higher the power, the better the cutting effect and cutting speed.

In general, the beam quality of a single module continuous laser is better than that of a multi module continuous laser. Single mode continuous laser has superior performance in cutting thin plates, but the cutting of long and thick plates is slightly inadequate. Therefore, in order to make up for the lack of performance of a single mode laser in cutting thick plates, flat top annular light output is used to weaken the focus energy concentration and strengthen the optical ring energy. In this way, the ten thousand watt laser cutting machine coupled by a single mode continuous laser has better cutting effect and cutting speed on ultra thick plate cutting.