Method for rapidly and smoothly removing magnesium alloy micro-arc oxide film layer
A micro-arc oxidation and magnesium alloy technology, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of poor magnesium alloy effect and achieve the effects of ensuring surface quality, saving energy consumption, and avoiding ablation
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Embodiment 1
[0018] The test object is a micro-arc oxidation film with a thickness of 15 Magnesium alloy samples with a surface roughness of 1.035 . The laser wavelength is 1.064 The nano-laser laser removes the film layer, the laser output power is 18W, the frequency is 50KHz, the laser beam scanning method is one horizontal scanning superimposed one longitudinal scanning, the scanning line spacing is 0.05mm, and the scanning speed is 1000mm / s.
[0019] Use a multimeter to measure the resistance between any two points in the film removal area to be 0 , indicating that the micro-arc oxidation film layer has been removed. The Ra of this area measured by TR200 surface roughness meter is 1.702 .
Embodiment 2
[0021] The test object is a micro-arc oxidation film with a thickness of 15 Magnesium alloy samples with a surface roughness of 1.012 . The laser wavelength is 1.064 The nano-laser laser removes the film layer, the laser output power is 9W, the frequency is 50KHz, the laser beam scanning method is one horizontal scanning superimposed one longitudinal scanning, the scanning line spacing is 0.05mm, and the scanning speed is 1500mm / s.
[0022] Use a multimeter to measure the resistance between any two points in the film removal area to be 0 , indicating that the micro-arc oxidation film layer has been removed. The Ra of this area measured by TR200 surface roughness meter is 2.220 .
Embodiment 3
[0024] The test object is a micro-arc oxidation film with a thickness of 27 The magnesium alloy sample, the surface roughness is 1.573 . The laser wavelength is 1.064 The nano-laser laser removes the film layer, the laser output power is 6W, the frequency is 30KHz, the laser beam scanning method is one horizontal scanning and one longitudinal scanning, the scanning line spacing is 0.05mm, and the scanning speed is 510mm / s.
[0025] Use a multimeter to measure the resistance between any two points in the film removal area to be 0 , indicating that the micro-arc oxidation film layer has been removed. The Ra of this area measured by TR200 surface roughness meter is 1.454 .
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