Introduction to common cutting methods of metal laser cutting machine

by:Caodahai     2021-09-19
As an indispensable processing equipment in the production field, the metal laser cutting machine has a very powerful role. In the processing of many materials, the metal laser cutting machine occupies this leading position. So what are the cutting methods of the metal laser cutting machine? This point needs to be understood by the operation, let's consult the experts below. For metal laser cutting machine, its application is very wide. Because of this, its cutting methods can only meet the needs of enterprises. Under normal circumstances, there are three most common cutting methods for metal laser cutting machines:   1 , Melting cutting: The cutting principle of melting cutting is that when we use a laser cutting machine to cut the material, we melt the part of the material that needs to be cut, and then use auxiliary gas to generate a high-pressure airflow to melt the material. Part of the blown away, because the blown away material is the part of the material that is melted away, so this cutting method is called melting cutting.   When the laser is combined with an inert gas for cutting, the gas generally does not participate in the cutting process, but exists as an auxiliary, so the cutting speed of melting and cutting will be very fast. In addition, the cutting speed of fusion cutting changes with the power generated by the laser, and the cutting speed is also inversely proportional to the thickness of the material. The thicker the material, the slower the cutting speed, and vice versa. . If we fix the power of the laser in a constant state, the thermal conductivity of the auxiliary gas and the material will become the decisive factor in determining the cutting speed. Another feature of fusion cutting is that it can be cut without oxidation when cutting metals such as iron and titanium, and it will not produce oxidized metal while cutting.  2. Flame cutting: The biggest difference between flame cutting and melting cutting is that the auxiliary gas used is oxygen. The cutting principle of flame cutting is to use oxygen to contact the heated metal to produce a chemical reaction and then to reheat the material to be cut to achieve the cutting purpose. The characteristics of this method make it even higher than the cutting rate of fusion cutting. However, compared with fusion cutting, the quality of the cutting edge of flame cutting is significantly worse than that of melting cutting, and the cutting seam produced by it is wider, the roughness is also greater, and the area affected by heat is relatively large. Bigger.  The flame cutting does not use the cutting aspect of the precision model of the material. However, the pulse mode can be used to limit the thermally affected area. The cutting rate of flame cutting is affected by the power of the laser. When the laser power is constant, the heat conduction of oxygen and materials is limited.  3. Vaporization cutting: Vaporization cutting is a cutting method that uses laser power to a very high degree. The material is vaporized due to the high power, and the cutting is carried out. However, gasification cutting has a disadvantage. If the thickness of the material exceeds the diameter of the laser light speed, the cutting cannot be completed. If the material is forcibly cut, it will be solidified by steam to the cutting seam. Gasification cutting is generally only suitable for materials that cannot be melted and cut. Therefore, the use surface of gasification cutting is very small, in fact, it is generally only suitable for iron-based alloys. The cutting speed of gasification cutting is inversely proportional to the gasification temperature of the material. The laser power of gasification cutting must be greater than 108w/cm2, and it is related to the material, the thickness of the cutting and the position of the laser beam. If the thickness of the material reaches a certain level, and the laser power is not strong enough, its maximum cutting speed will be limited by the gas jet.   Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd. is a high-tech enterprise integrating Ru0026D, production and sales of professional laser complete sets of equipment. Not only successfully developed laser equipment with advanced technology, but also used self-support import and export rights to promote products to more than forty global products including Hong Kong, South Korea, Vietnam, Malaysia, Thailand, Australia, the United States, Japan, Germany, the Netherlands, Jordan, etc. nation.
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