Device and method for preparing metal surface microarray through ultrasonic energy field assisted laser rapid melting

A metal surface and microarray technology, which is applied in the field of laser processing and laser surface micromolding, can solve the problems of difficult microarray structure and low processing efficiency, and achieve the effect of high material utilization rate, high molding efficiency and high hardness

Pending Publication Date: 2022-04-05
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, methods such as EDM, chemical or electrochemical corrosion are difficult to produce fine microarray structures; processing methods such as femtosecond laser processing technology and micro-nano additive manufacturing technology have low processing efficiency

Method used

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  • Device and method for preparing metal surface microarray through ultrasonic energy field assisted laser rapid melting
  • Device and method for preparing metal surface microarray through ultrasonic energy field assisted laser rapid melting
  • Device and method for preparing metal surface microarray through ultrasonic energy field assisted laser rapid melting

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Embodiment 1

[0038] Such as figure 1 As shown, the metal surface microarray molding device prepared by surface acoustic wave laser rapid fusion of the present invention includes a laser 1, an interdigital transducer 2, a laser head 3, a mechanical arm 4, a control panel 5, and a bevel gear 6, Metal sample 7, jaws 8, workbench 9, protective gas device 10.

[0039] The laser forming equipment includes a laser 1, a laser head 3, a mechanical arm 4, a control panel 5 and a shielding gas device 10, which are used to generate a high-energy beam to heat a metal sample to produce a metal melt.

[0040] The surface acoustic wave workbench includes an interdigital transducer 2, a bevel gear 6, a metal sample 7, a claw 8 and a workbench 9, and its upper end surface is square; it is used to make the metal melt generate ideal Microarray structure.

[0041] The laser head is a variable spot lens group, which can change the size and length ratio of the spot during the melting process, and can provide a...

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Abstract

The invention discloses a device and method for preparing a metal surface microarray through ultrasonic energy field assisted laser rapid melting. The device mainly comprises laser forming equipment and a surface acoustic wave workbench. According to the device, a sound field is applied to a heated melt in the laser melting process, the amplitude, frequency and phase of an ultrasonic surface wave are changed by adjusting an ultrasonic signal generator and a power generator, and after a needed stable microarray structure is generated, a laser heat source is removed, and the melt is naturally cooled, solidified and formed; the surface microarray structure is rapidly formed and prepared in the laser melting process through the surface acoustic waves, the manufacturing process is simple, operation is convenient, and the production efficiency is high.

Description

technical field [0001] The invention relates to the fields of laser processing and laser surface micro-molding, in particular to a laser-melted metal surface micro-array forming device and a forming method based on an ultrasonic energy field. Background technique [0002] In many application fields, surface texturing technology is often used to enhance application performance. Surface texture technology, as a cutting-edge technology in surface engineering, has the functions of reducing friction, storing liquid, and facilitating the formation of elastohydrodynamic lubrication. Surface texturing can improve the friction and wear performance of the surface of the friction pair, prolong its service life, reduce its wettability, and even achieve a super-hydrophobic effect. Therefore, the preparation of surface textures such as microarrays on metal surfaces is of great significance for engineering applications and environmental protection. [0003] At present, common metal surfa...

Claims

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Application Information

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IPC IPC(8): C21D1/09B23P15/00
Inventor 姚建华姚喆赫王梁张群莉董刚葛鸿浩吴国龙赵文祯范丽莎洪锦源
Owner ZHEJIANG UNIV OF TECH
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