IME2019
Laser cutting surface roughness depends mainly on the following three aspects
by：Transon
2021-01-08
1.
Intrinsic parameters of the cutting system, such as speckle pattern, focal length, etc. ;
2. Can be adjusted in the process of cutting process parameters, such as power size, cutting speed, auxiliary gas type and pressure etc.
3. Processing material physical parameters, such as the laser absorption rate, melting point, viscosity coefficient of molten metal oxide, metal oxide surface tension, etc. In addition, the thickness of the machined part also has a great influence for laser cutting surface quality. Relatively, the smaller the thickness of the metal workpiece, the higher the cutting surface roughness level.
to obtain better surface quality grades, must be on process parameters such as laser power, cutting speed optimization for many times. In general, to have the same characteristic and the thickness of the material, has a set of optimal cutting parameters, will also give different incision surface quality. The low melting point metal materials, thermal conductivity, the melt viscosity coefficient, small metal oxide surface tension, laser cutting is easy to obtain high surface quality.
laser cutting plate, easy to measure the surface quality, but in the fine machining or cutting some complex design, it is difficult to direct measurement, only with the aid of optimization parameters to control over the quality of the surface. Therefore, in order to facilitate automated cutting, set up the external optimization parameters and the corresponding relation of surface quality grades.
2. Can be adjusted in the process of cutting process parameters, such as power size, cutting speed, auxiliary gas type and pressure etc.
3. Processing material physical parameters, such as the laser absorption rate, melting point, viscosity coefficient of molten metal oxide, metal oxide surface tension, etc. In addition, the thickness of the machined part also has a great influence for laser cutting surface quality. Relatively, the smaller the thickness of the metal workpiece, the higher the cutting surface roughness level.
to obtain better surface quality grades, must be on process parameters such as laser power, cutting speed optimization for many times. In general, to have the same characteristic and the thickness of the material, has a set of optimal cutting parameters, will also give different incision surface quality. The low melting point metal materials, thermal conductivity, the melt viscosity coefficient, small metal oxide surface tension, laser cutting is easy to obtain high surface quality.
laser cutting plate, easy to measure the surface quality, but in the fine machining or cutting some complex design, it is difficult to direct measurement, only with the aid of optimization parameters to control over the quality of the surface. Therefore, in order to facilitate automated cutting, set up the external optimization parameters and the corresponding relation of surface quality grades.
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