Laser treatment method for working part of extrusion die
A technology of working part and extrusion die, applied in the field of modification of working part of extrusion die, can solve the problems of long nitriding treatment time, waste water and exhaust gas discharge, high treatment cost, improve the surface and performance quality, and prolong the service life , the effect of prolonging the service life
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[0025] Embodiment 1: The width of the working part is 3mm, and the adjustment parameters of the laser are 30° laser entry angle, 800w laser power, 275mm laser focal length, laser spot Φ3mm, and laser bombardment speed 5 mm / s.
Example Embodiment
[0026] Embodiment 2: The width of the working part is 5mm, and the adjustment parameters of the laser are 50° laser entrance angle, 550w laser power, 255mm laser focal length, laser spot Φ5mm, and laser bombardment speed 6 mm / s.
Example Embodiment
[0027] Embodiment 3: The width of the working part is 8mm, the adjustment parameters of the laser are 85°, laser power 650w, laser focal length 350mm, laser spot Φ8mm, and laser bombardment speed 5.5mm / s.
[0028] The present invention takes the above three sets of experimental data to perform laser treatment on the working part of the extrusion die, and the hardness after treatment is all 62HRC, 64HRC, and 66HRC.
[0029] In the present invention, laser technology is used to process the working part of the extrusion die, and the shallow crystal lattice arrangement of the working part of the extrusion die is changed by high-power laser bombardment, so that the hardness of the working part of the extrusion die can reach 62HRC or more, and the hardness layer depth can reach 0.5~1.2mm, compared with the conventional heat treatment and nitriding treatment, the hardness of the extrusion die is larger, the depth of the hardness layer is greatly improved, the service life of the die is inc...
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