Laser forming device for directionally conveying single-particle nanometer metal particles

A nano-metal particle and laser forming technology, which is applied in the field of laser sintering forming equipment, can solve the problem that the forming accuracy cannot meet the requirements of precision components, and achieve good market application prospects, positive technical effects, and simple and easy technical means

Active Publication Date: 2015-03-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of micro-nano precision manufacturing, the molding accuracy of existing laser sintering molding equipment still cannot meet the requirements of precision components, such as precision biological brackets, aerospace precision instruments and optoelectronic components, etc.

Method used

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  • Laser forming device for directionally conveying single-particle nanometer metal particles
  • Laser forming device for directionally conveying single-particle nanometer metal particles

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Experimental program
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Embodiment

[0029] Such as figure 1 , 2 shown. The laser molding equipment for directional transport of single-particle nanometer metal particles of the present invention includes a mixed sample feeding system 1, an aerodynamic lens 2, a confocal laser group 3 and a workbench 4;

[0030] The workbench 4 is a movable platform, moving in the direction of X, Y or Z axis, that is, moving on the same horizontal plane of X and Y, can obtain a two-dimensional pattern with nanometer line width; moving in the direction of Z axis, the pattern is gradually Layers are stacked to obtain 3D models with nanoscale precision.

[0031] The mixed sampling system 1 is connected with an aerodynamic lens 2, and the aerodynamic lens 2 is located above a workbench 4; the workbench 4 is used to place a sintered matrix 4-1 to accept nanoparticles.

[0032] The confocal laser group 3 is located between the aerodynamic lens 2 and the table 4 . Each laser in the confocal laser group 3 has a common focal point, an...

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Abstract

The invention discloses a laser forming device for directionally conveying single-particle nanometer metal particles. The laser forming device comprises a mixed sample feeding system, an aerodynamic lens, a confocal laser set and a workbench. The mixed sample feeding system is connected with the aerodynamic lens, and the aerodynamic lens is located above the workbench. The confocal laser set is located between the aerodynamic lens and the workbench. The mixed sample feeding system can fully and evenly mix nanometer particles and gas to generate nanometer aerosol of certain concentration and a certain flow speed. The aerodynamic lens can effectively focus nanometer particles with a certain particle size range. The confocal laser set melts the nanometer particles sprayed out by the aerodynamic lens and makes the nanometer particles cover a sintering base body surface of the precise workbench in a molten mode. By means of the device, forming accuracy is greatly improved, one-way conveying of the particles can be achieved, the molten drop fusion covering position is controllable, the technical means is easy and convenient to implement, and the laser forming device can be designed and produced in a modular mode and has positive technical effects and good market application prospects.

Description

technical field [0001] The invention relates to laser sintering molding equipment, in particular to a laser molding equipment for directional transport of single-particle nanometer metal particles. Background technique [0002] 3D printing technology is a very popular manufacturing technology with a wide range of industrial application prospects. Different from traditional excision processing technology, 3D printing is a technology that uses adhesive materials such as molten metal, powder or polymer, and uses the principle of layer-by-layer stacking to construct models. [0003] Commonly used 3D printing methods use adhesives to bond powder layers to form thin layers; spray molten plastic from the nozzle, and then bond to form thin layers after the plastic solidifies; or use photosensitive materials to be stacked layer by layer through light curing and other methods. With 3D printing, models of almost any shape can in principle be produced. [0004] However, machining accu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
Inventor 汤勇曾健陈灿张仕伟李文博
Owner SOUTH CHINA UNIV OF TECH
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