A micro-flattening device and method based on high-energy pulsed laser force effect

Abstract

The invention discloses a micro-leveling device based on high-energy pulse laser power effect. The micro-leveling device comprises a laser driving control system, a target material system and a target material clamping and displacing system, wherein the laser driving control system comprises a computer, a controller, a nanosecond laser, a planar refection mirror and a focusing lens; the target material system is clamped on the target material clamping and displacing system; and the target material clamping and displacing system comprises a controller, a three-dimensional moving platform, an L-shaped base and a clamping body. By utilizing the micro-leveling device, the micro-leveling of the surface defects of a target material is realized, the performance of the target material is improved, and the target material is enabled to resist the defects; the micro-leveling device has the advantages of laser thermal leveling; and meanwhile as a non-thermal leveling process, the performance of the material is maintained or even improved due to the residual stress generated from a target surface, which can improve the corrosion resistance and the fatigue resistance of the target and prevent tiny cracks from being generated in industrial production; and the micro-leveling based on the high-energy pulse laser power effect is a high-precision leveling technique which is easy to realize and very useful.

Description

technical field [0001] The invention relates to a micro-leveling device and method suitable for the surface of metal targets, in particular to a micro-leveling device and method for metal plate defects based on high-energy pulsed laser force effects, belonging to micro-electromechanical systems (MEMs) micro-leveling technology and the field of laser microforming. Background technique [0002] With the development of modern science and technology, the trend of miniaturization of products is accelerating, and the demand for micro and small parts is also increasing, especially the rapid development of the field of micro-electromechanical systems (MEMS). In these industries and fields, the flatness requirements of sheet metal are very high. However, the metal sheet forming method will inevitably form various defects on the metal surface, typically including: point defects, line defects and surface defects. Although these surface defects can be slowly flattened by a forging pre...

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Problems solved by technology

[0006] Aiming at the problems in the prior art of laser thermal leveling such as large temperature effect, difficult control of deformation, difficulty in achieving micro-leveling, and difficulty in controlling the precision of contact mechanical micro-leveling, the present invention provides a non-contact based high-energy pulse laser force effect. Micro-leveling method and device

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