Device and method for laser shock forming super-hydrophobic micro-parts

Abstract

The invention discloses a device and method for laser shock forming super-hydrophobic micro-parts, and belongs to the technical field of laser micro-machining and metal material surface processing. Amicro-concave texture is machined on the surface of a mold in advance, under the effect of laser shock waves, a surface micro-convex texture can be accurately prepared while micro-forming of the partsis carried out so as to be used for regulating and controlling the wettability of the micro-parts. The micro-convex features are obtained through plastic deformation induced by impact pressure, so that grains of the micro-textures are refined, the mechanical properties are enhanced, and the durability of the micro-textured surface is improved. A mask system can apply different laser energies to forming areas and cutting areas of the parts, and micro-forming operation and micro-cutting operation are completed, so that the micro-parts can be directly manufactured under once clamping. The deviceand method can directly manufacture the micro-parts with the controllable wettability, the machining process has the characteristics of high efficiency and high precision, and the machined surface micro-convex features have good durability.

Description

technical field [0001] The invention belongs to the technical field of laser micromachining and metal material surface processing, and in particular relates to a method and a device for laser shock forming superhydrophobic microparts. Background technique [0002] Superhydrophobic surfaces have a wide range of applications in self-cleaning, anti-fog, anti-icing and frosting, corrosion resistance, responsive switching, oil-water separation, non-destructive liquid transfer, liquid transport, blood-compatible materials, etc. The superhydrophobic property of the material surface is mainly determined by the surface energy of the material and the microstructure of the material surface, and the influence of the microstructure of the material surface is much greater than the surface energy of the material. At present, the processing methods of superhydrophobic surfaces of engineering metal materials can be divided into physical methods and chemical methods. Physical methods include...

AI Technical Summary

Problems solved by technology

Chemical methods have the disadvantages of expensive raw materials, complicated processing, and difficulty in control. At the same time, the superhydrophobic surface (or coating) obtained by physical or chemical methods is exposed to the air or subjected to fluid adhesion for a long time. The performance will be deteriorated or even lost, so the durability and stability of the microscopic morphology of the superhydrophobic surface (or coating) affect its application in actual production and life

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