English 
The focus is the distance between the focus of the laser cutting machine and the surface of the product, which directly damages the surface roughness of the cross section, the inclination and total width of the cut joint, and the adhesion of the molten sediment. If the focus position is too far ahead, the heat energy digested and absorbed under the segmented product workpiece will increase under the condition that the laser cutting efficiency and auxiliary standard air pressure are unchanged.
As a result of laser cutting, the raw material to be cut and the melting data around the slit are the liquid flowing in the lower surface layer, and the cooled molten raw material will adhere to the lower surface layer of the casting in a spherical form; If the position is behind. The lower inner hole of the split raw material can absorb less heat, so that the raw material in the slit can not be completely dissolved, and some sharp and short deposits will adhere to the lower surface of the material.
When using a laser cutting machine for laser cutting, the choice of cutting speed depends on the material of the laser cutting material and the thickness of the furniture sheet. Different laser cutting rates will cause great harm to the laser cutting quality of the laser cutting machine. Choosing the right laser cutting efficiency can not only improve the laser cutting speed of the laser cutting machine, but also obtain better laser cutting quality. The harm of different laser cutting rates to the quality of laser cutting is described as follows:
Laser cutting machine may cause laser cutting failure and spark spatter. The laser cutting machine can be disconnected in some areas, but it can be disconnected in some areas. As a result, all laser cutting cross sections of the laser cutting machine are relatively thick, but there is no melting.
The laser cutting speed of the laser cutting machine is too fast, resulting in the inability to disconnect the furniture board immediately. A laser cut cross-section shows a diagonal pattern, the underside of which leads to melting stains. Due to the excessive melting of the laser cutting machine, the laser cutting cross-section is not smooth. The relative strain of the laser cutting machine will be large, which will cause all areas of the small arc or slope position to melt, and the ideal laser cutting practical effect cannot be obtained.
Laser cutting machine laser cutting rate is low, endangering production. The laser cutting machine can distinguish between the cutting speed and the laser cutting flame: usually, the laser cutting flame spreads from top to bottom. If the flame is tilted, the cutting speed is too fast; If the flame does not spread and condense together, it indicates that the cutting speed is very slow. The laser cutting machine moderately adjusts the laser cutting speed. The laser cut surface shows a stable wire frame with no melting stains on the lower part.
