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Metal powder laser 3D printing nozzle

A metal powder, 3D printing technology, applied in the direction of improvement of process efficiency, additive manufacturing, additive processing, etc., can solve the problem of not seeing the patent documents and so on, and achieve the effect of simple structure and good printing effect

Pending Publication Date: 2018-06-08
ZHEJIANG WANFENG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the 3D printing nozzles retrieved from China are heated by heating blocks for thermal fusion, and the nozzles that use laser hot-melt metal powder for 3D printing have not yet been seen and submitted to the patent documents.

Method used

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  • Metal powder laser 3D printing nozzle
  • Metal powder laser 3D printing nozzle
  • Metal powder laser 3D printing nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Example: see Figures 1 to 4 As shown, a metal powder laser 3D printing nozzle has a truncated cone-shaped nozzle head 2 formed on the lower part of the entity 1, and a first annular cavity 3 and a second annular cavity 4 are formed on the nozzle head 2. The second annular cavity The cavity 4 is located inside the first annular cavity 3, the first annular cavity 3 forms a first annular cavity opening 31 at the lower part of the nozzle head 2, and the second annular cavity 4 forms a second annular cavity at the lower part of the nozzle head 2 cavity opening 41;

[0018] The first shielding gas conveying pipe 51, the second shielding gas conveying pipe 52 and the third shielding gas conveying pipe 53 are all in communication with the first annular cavity 3, the first metal powder conveying pipe 61, the second metal powder conveying pipe 62 and The third metal powder conveying pipe 63 is all communicated with the second annular cavity 4, the first annular cavity 3 and the...

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Abstract

The invention discloses a metal powder laser 3D printing nozzle. A first annular cavity and a second annular cavity are formed in a nozzle head, the second annular cavity is located on the inner sideof the first annular cavity, and the first annular cavity forms a first annular cavity opening in the lower portion of the nozzle head; the second annular cavity forms a second annular cavity openingin the lower portion of the nozzle head; a laser beam is focused on a dot; and a first metal powder conveying pipe, a second metal powder conveying pipe and a third metal powder conveying pipe are distributed on the nozzle head in an annular array by taking the circle center of the cone-shaped nozzle head as a center, and an included angle between every protective gas conveying pipe and the metalpowder conveying pipe correspondingly adjacent to the protective gas conveying pipe is 60 degrees. A laser is used for carrying out hot melting on the metal powder so as to realize 3D printing and curing, the hot-melt metal powder is prevented from being oxidized under the protection of inert gases, the structure is simple, and the printing effect is good during actual application.

Description

Technical field: [0001] The invention relates to the technical field of 3D printers, in particular to a nozzle for 3D printing using metal powder. Background technique: [0002] 3D printing is an emerging technology, and the application of 3D printing technology in the foundry industry is still in the exploratory stage. At present, most of the 3D printing nozzles retrieved from China are heated by heating blocks for thermal fusion, while the nozzles for 3D printing using laser hot-melt metal powder have not yet been seen to send patent documents. Invention content: [0003] The purpose of the present invention is to address the deficiencies of the prior art, and to provide a metal powder laser 3D printing nozzle, which uses laser to melt the metal powder to achieve 3D printing and solidification, and the hot-melt metal powder is protected by an inert gas to avoid being Oxidation, its structure is simple, and the printing effect is good in practical applications. [0004]...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F10/32B22F10/25B22F12/53Y02P10/25
Inventor 吴文杰石旗勇杨勇吴锦华周裕庚孔祥斌吴俊灏陈勇俞桂英郑建明
Owner ZHEJIANG WANFENG TECH DEV CO LTD
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