Laser 3D printing method and system with shape correction function

A 3D printing and laser technology, applied in the field of 3D printing, to achieve the effect of ensuring quality, improving porosity and increasing density

Inactive Publication Date: 2017-11-10
INNO LASER TECH CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a laser 3D printing method and system with orthopedic function, which solves the technical problem of spot consistency in the existing 3D printing process

Method used

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  • Laser 3D printing method and system with shape correction function
  • Laser 3D printing method and system with shape correction function
  • Laser 3D printing method and system with shape correction function

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Embodiment Construction

[0024] The present invention will be further elaborated below with reference to the accompanying drawings.

[0025] Please refer to the attached figure 1 , in this example, refer to figure 1 And attached figure 2 , the laser 3D printing system with orthopedic function in this embodiment mainly includes an industrial computer, a laser, a laser scanning device and a powder box. The industrial computer controls the laser of the laser scanning device to perform 3D printing on the powder placed in the powder box, wherein the laser scanning device includes a spot correction device for correcting the laser beam.

[0026] Among them, the industrial computer is connected with the laser scanning device and the powder box, and controls the laser scanning device and the powder box to perform 3D printing on the materials in the powder box.

[0027] Please refer again to the attached figure 1 , in the first embodiment:

[0028] The laser scanning device includes: a laser 2 connected t...

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PUM

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Abstract

The invention discloses a laser 3D printing method with a shape correction function. The method comprises the following steps that (1), projection characteristics of all points in scanning breadth are measured, and the focusing light spot deformation amount of all the points in the scanning breadth before shape correction is obtained; (2), the compensation dosage of a light spot shape correction device to all the points is set according to the measurement result in the first step, and the sizes of focusing light spots at all the points in the scanning breadth can have consistency; (3), a laser is stated, and the laser is dynamically matched with the shape correction device and a scanning device for laser 3D printing. According to the laser 3D printing method and system with the shape correction function, the laser sintering degree is controlled by changing the laser pulse width in the 3D printing process, the situation that holes, superburning and nodulizing are generated in the printing process is improved, and density is improved; and besides, the shape correction device is added, it can be guaranteed that the sizes of the focusing light spots in the scanning breadth have consistency by precisely controlling the compensation amount of the light spot shape correction device, and thus 3D printing quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a laser 3D printing method with orthopedic function and a system thereof. Background technique [0002] 3D printing technology is a technology based on digital model files, using bondable materials such as powder or plastic, to construct objects by layer-by-layer printing. It can directly generate parts of any shape from computer graphics data without machining or any molds, thereby greatly shortening the product development cycle, improving productivity and reducing production costs. [0003] Laser sintering technology uses the principle of sintering powder materials under laser irradiation, and is formed by computer-controlled layer-by-layer stacking. Laser sintering technology can use a lot of powder materials and make finished products of corresponding materials. The finished products of laser sintering have good precision and high strength, and the strength of the final...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/153B29C64/20B29C64/393B33Y10/00B33Y30/00B33Y50/02
CPCB33Y10/00B33Y30/00B33Y50/02B33Y40/20B29C64/153B29C64/35B29C64/264B29C64/393
Inventor 赵晓杰陶沙
Owner INNO LASER TECH CORP LTD
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