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A device and method for laser shock forming superhydrophobic micro-parts

A super-hydrophobic micro-laser shock technology, applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of poor surface structure hydrophobicity, durability and stability, expensive raw materials, etc., and achieve mechanical properties Effect of strengthening, increasing durability, improving mechanical properties

Active Publication Date: 2021-07-20
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • A device and method for laser shock forming superhydrophobic micro-parts
  • A device and method for laser shock forming superhydrophobic micro-parts
  • A device and method for laser shock forming superhydrophobic micro-parts

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Embodiment approach

[0036] combined with figure 1 , 2, 3, and 4 show an embodiment of the device and method for realizing laser shock forming superhydrophobic micro parts according to the present invention, the device includes a laser loading system, a mask system, and a forming system;

[0037] combined with figure 1As shown, the laser loading system includes a laser controller 12, a nanosecond laser 11 and a focusing lens 10, and the laser beam emitted by the nanosecond laser 11 enters the mask system after passing through the focusing lens 10; the forming system includes an annular optical medium 9. Absorbing layer film 8, polyurethane soft film 7, plasticine 6, isolation layer film 5, workpiece raw material 4, isolation gasket 3, micro mold 2 and three-dimensional mobile platform 1.

[0038] combined with image 3 As shown, the mask system includes a mask holder 14, a first mask tray 15, a first mask plate 16, a second mask tray 17 and a second mask plate 18; the first mask tray 15 and the ...

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Abstract

The invention discloses a device and method for forming super-hydrophobic micro parts by laser shock, which belongs to the technical field of laser micromachining and metal material surface processing. By pre-processing a micro-concave texture on the surface of a mold, under the action of laser shock waves, The surface micro-protrusion texture can be precisely prepared during the micro-forming of the workpiece to regulate the wettability of the micro-parts. These micro-protrusion features are obtained by plastic deformation induced by impact pressure, so the grains of these micro-textures are refined, and their mechanical properties are enhanced to improve the durability of the micro-textured surface. The mask system can apply different laser energies to the forming area and cutting area of ​​the workpiece to complete the micro-forming and micro-cutting operations respectively, so that micro-parts can be directly manufactured under one clamping. The invention can directly manufacture micro-parts with controllable wettability, the processing process has the characteristics of high efficiency and high precision, and the processed surface micro-protrusion 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/356B23K26/38B23K26/70
CPCB23K26/38B23K26/356B23K26/702
Inventor 沈宗宝张蕾李品张金殿严长王霄刘会霞
Owner JIANGSU UNIV
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