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Laminar flow type adjustable air guide device

An air guide device, adjustable technology, applied in the direction of process efficiency improvement, additive manufacturing, additive processing, etc.

Inactive Publication Date: 2019-07-16
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide an air guide device with adjustable direction and stable laminar flow gas through simulation calculation and verification, so as to solve the gas turbulence existing in the existing 3D printing production Production problems, reducing pollutants entering the powder bed, inhibiting the dispersion of fine particles in the molding cavity, and improving the efficiency of laser processing

Method used

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  • Laminar flow type adjustable air guide device
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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Such as figure 1 As shown, a laminar flow adjustable air deflector includes an air deflector bottom plate 010, an elongated splitter plate 020, an air deflector shell 030, an adjustable upper deflector 031, and an adjustable lower deflector 032 , Deflector fixing bolt 033.

[0026] The front end of the bottom of the air guide device housing 030 is provided with an air guide device base plate 010, and the lengthened diverter plate 020 is evenly distributed on the air guide device base plate 010. Plate 031 and adjustable lower deflector 032.

[0027] The base plate 010 of the air guiding device is used to embed and fix the air guiding device and the original air outlet, so as to ensure that the air flow smoothly enters the air guiding device from the air supply duct. Its size matches the air supply duct and the molding cavity.

[0028] The exte...

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Abstract

The invention relates to a laminar flow type adjustable air guide device. The device comprises an air guide device bottom plate, lengthened type flow diverting plates, an air guide device shell, an adjustable upper flow guide plate, an adjustable lower flow guide plate and flow guide plate fixing bolts, the air guide device bottom plate is arranged at the front end of the bottom of the air guide device shell, the lengthened type flow diverting plates are uniformly distributed on the air guide device bottom plate, and the adjustable upper flow guide plate and the adjustable lower flow guide plate are connected in the air guide device shell through the flow guide plate fixing bolts. According to the device, the production problem of gas turbulence generated in existing 3D printing productioncan be solved, the possibility that pollutants enter a powder bed is reduced, fine particles are prevented from being dispersed in a forming cavity, and the laser processing efficiency is improved.

Description

technical field [0001] The invention relates to a circulating gas air outlet structure of a 3D printing device, in particular to an adjustable air guiding device. Background technique [0002] Additive manufacturing, commonly known as 3D printing, is a combination of computer-aided design, material processing and forming technology, based on digital model files, through software and numerical control system, special metal materials, non-metal materials and medical biological materials, according to extrusion, Sintering, melting, light curing, spraying, etc. are accumulated layer by layer to create a manufacturing technology for physical objects. [0003] Among them, selective laser melting SLM (Selective Laser Melting), SLM technology is a technology that uses metal powder to be completely melted under the heat of a laser beam, cooled and solidified to form a shape. In order to completely melt the metal powder, the laser energy density is required to exceed 106W / cm 2 . At...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F10/322B22F10/28Y02P10/25
Inventor 曹志强沈爱萍杨义曹晟侯娟陈卓尔
Owner UNIV OF SHANGHAI FOR SCI & TECH
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