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Factors affecting the effect of laser cutting

Factors affecting the effect of laser cutting

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  • Time of issue:2019-07-24 16:55
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(Summary description)In recent years, laser cutting technology has developed rapidly in various fields, and laser cutting machines occupy a considerable proportion in metal and non-metal processing.

Factors affecting the effect of laser cutting

(Summary description)In recent years, laser cutting technology has developed rapidly in various fields, and laser cutting machines occupy a considerable proportion in metal and non-metal processing.

  • Categories:company news
  • Author:
  • Origin:
  • Time of issue:2019-07-24 16:55
  • Views:
Information
In recent years, laser cutting technology has developed rapidly in various fields, and laser cutting machines occupy a considerable proportion in metal and non-metal processing. The production and sales of laser cutting machines and industrial lasers in industrialized countries such as Europe, the United States, and Japan are also increasing year by year, and the fields of application are becoming more and more extensive.
 
In the research of laser cutting process, the research focuses on the laser output power, focus position, laser mode and nozzle shape. As early as the 1970s and 1980s, countries such as the United States, Japan, and Germany have established laser cutting process databases based on a large number of cutting process tests. In the early 1990s, some high-performance laser cutting systems were introduced abroad. Qingyuan Laser has also been deeply researching and developing high quality metal laser cutting machines.
 
Effect of laser cutting parameters on cutting quality
 
Cutting speed
 
In laser cutting, the cutting speed has a considerable influence on the quality of the cutting material. The ideal cutting speed will make the cutting surface appear smoother and the slag will not appear in the lower part of the material. When the auxiliary gas pressure and the laser power are constant, the cutting speed and the slit width exhibit a nonlinear inverse relationship. When the cutting speed is relatively slow, the laser energy is prolonged in the slitting action, resulting in an increase in the slit width. When the speed is too slow, the laser beam acts for too long, the difference between the upper and lower slits of the workpiece will be large, the quality of the cutting will be reduced, and the production efficiency will be greatly reduced.
 
As the cutting speed of the metal laser cutting machine increases, the action time of the laser beam energy on the workpiece becomes shorter, so that the heat diffusion and heat conduction effects become smaller, and the width of the slit is correspondingly smaller. When the speed is too fast, the material of the workpiece to be cut may not be cut due to insufficient input of cutting heat. This phenomenon is incompletely cut, and the melted material cannot be blown off in time, and these melts will be cut. The seam is rewelded.

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