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Working Principle Of Laser Cutting Machine And Laser Welding Machine

Shenzhen MG Technology Co.,Ltd | Updated: May 04, 2016

Laser cutting machine and laser welding machine is rely on the laser to complete the processing tasks, but the functionality of the two are very different. So, what's the difference between the two?

First of all, we need to know is how to complete the laser cutting process?

Laser cutting machine is a horizontal laser beams emitted by the laser, pass the 45 degree reflective mirror, change into the downward vertical laser beam. After lens focusing, the focusing laser beam turn to a tiny spot, in the spot the laser power and density is as high as 10^6~10^9W/cm^2 . Workpiece located in the focal point of high power and high density, reach more than 10000 °C high temperature, the workpiece is instantly vaporized, auxiliary gas blown away the vaporization of metal, which cut through the workpiece, processed into a small hole, with the movement of CNC machine tools, numerous small holes to connect, graphics should be cut. Because the laser cutting frequency is very high, so each hole at the junction of the processed goods very smooth.

However, laser welding machine is a new welding method, primary for welding of thin materials, precision parts, to be completed by the spot, butt welding, lap welding, seal welding, high depth-width ratio, weld width of small, small heat affected zone, small deformation, welding speed, weld flat, beautiful, welding without treatment, or just simple processing, high quality welding seam, no pores, accurate control, small focal spot size and positioning accuracy. It uses high energy laser pulse, partial heating area of fine material, laser radiation energy through heat conduction, diffusion of material, the material is melted after a specific pool.

Through the above, we have a certain understanding on laser equipment! In fact, the principle is similar to the laser welding and cutting, but the purpose of processing is the opposite, the most important secret is the laser power. On the basis of experience, the two are able to in a machine to complete symbiosis, only slightly different program, called by different laser power.

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