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Views: 43 Author: heyu Publish Time: 08-01-2020 Origin: Fiber laser cutting machine
Laser is a kind of light, like other natural light, is produced by the transition of atoms (molecules or ions, etc.). However, it is different from ordinary light in that the laser only depends on spontaneous emission in a very short period of time, and the subsequent process is completely determined by the excitation radiation. Therefore, the laser has very pure color, almost no divergence directionality, high luminous intensity and high coherence.
Laser cutting is realized by using high power density energy produced by laser focusing. Under the control of computer, the laser is discharged by pulse, and the controlled repetitive high frequency pulse laser is output to form a beam of certain frequency and pulse width. The pulse laser beam is conducted and reflected through the optical path and focused on the surface of the processed object through the focusing lens group to form a fine, high energy density spot. The focus spot is located near the surface to be processed, Melt or vaporize the processed material at instantaneous high temperature. Each high-energy laser pulse instantly spatters a small hole on the surface of the object. Under the control of the computer, the laser processing head and the processed material carry out continuous relative movement and dotting according to the pre drawn figure, so as to process the object into the desired shape.
Equipment for cutting various kinds of metal or sheet metal by laser thermal cutting principle. The products cut in have high precision and good stability. In the design, the R & D personnel optimize the CNC control system from time to time, so that it can better meet the increasingly precise parts processing. The dynamic stability of the designed CNC system is strong, and it can continue to work for a long time.
Because the laser cutting machine adopts the fiber cutting head system, the cutting head will float with the height of the plate, but the position of the cutting point always remains unchanged. Therefore, the cutting seam of the data is smooth and flat, and there is no need for other post-processing after cutting, which reduces various processing links, and has high speed and cost-effective. Of course, the core technology of the laser cutting machine is the stability of its laser optical path system. Even after thousands of vibration frequency, the laser optical system is still stable.
The cutting process parameters (cutting speed, laser power, gas pressure, etc.) and motion trajectory are controlled by the CNC system. The slag at the slit is blown away by the auxiliary gas with certain pressure.
