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A metal marking method based on laser shock processing
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DOI：10.1080/10426914.2019.1566618.png)
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Abstract
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The stress effect generated by a high-energy short-pulse laser is utilized to achieve performance enhancement or precise shaping of metal material components in laser shock technology. A method of marking metal materials using laser shock technology is introduced in this paper. The physical principle is the effect of thickness of absorbing layers on the intensity of a laser-induced shockwave, which results in forming the mark with a certain shape using local surface plastic deformation. The marking method based on the principle of laser shock overcomes the deficiency of traditional marking methods that causes serious damage to the surface of the metal material and leads to a decrease in service performance. Laser shock marking(LSM) allows the surface of the metal material to form a predetermined mark, which also improves the service performance accordingly.
Keywords:
Lasers
surface
alloys
processes
peening
forming
deformation
residual
stresses
roughness
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