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Integrated forming additive manufacturing device and method of multi-material component

A technology of additive manufacturing and multi-material, applied in the field of additive manufacturing

Pending Publication Date: 2019-12-10
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent application still does not completely solve the powder mixing problem of powders of different materials in the same slice layer and between adjacent slice layers

Method used

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  • Integrated forming additive manufacturing device and method of multi-material component
  • Integrated forming additive manufacturing device and method of multi-material component
  • Integrated forming additive manufacturing device and method of multi-material component

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as Figure 1 to Figure 4 As shown, a multi-material component integrated forming additive manufacturing device, the forming device includes a powder feeding system, a forming cylinder 11, and the powder feeding system includes a powder flow feeder 2, a powder feeding pipeline 21 and a multi-channel The powder mixing nozzle 7, the powder feeding pipeline 21 is multiple, and the powder feeding pipeline 21 is used as a pipeline for the powder flow powder feeder 2 to transfer powder to the multi-channel powder mixing nozzle 7;

[0057] It also includes a powder cleaning system, which includes a vacuum cleaner 1, a powder cleaning pipeline 20 and a powder cleaning nozzle 8, and the powder cleaning pipeline 20 is used as a connecting pipeline between the vacuum cleaner 1 and the powder cleaning nozzle 8, so that When the vacuum cleaner 1 is working, a suction force is generated on the inlet end of the powder cleaning nozzle 8 to suck the powder on the powder feeding cyli...

Embodiment 2

[0066] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 4 As shown, in order to make this solution not only suitable for the integrated forming of multi-material components, but also adapt to the preparation of existing gradient function parts, the setting is: at the same time, the powder flow powder feeder 2 can pass through at least two powder feeding pipelines 21, and simultaneously feed multiple The multi-way powder mixing nozzle 7 conveys powders of different components; the multi-way powder mixing nozzle 7 is provided with a mixing chamber, and the powder from different powder feeding pipelines 21 passes through the multi-way powder mixing nozzle 7 through the mixing chamber, and the The powder mixing takes place in the mixing chamber or at the powder output end of the multi-way powder mixing nozzle 7 . Gradient function parts use two or more materials with different properties. By continuously changing the components of the ...

Embodiment 3

[0081] On the basis of any one of the technical solutions provided in Embodiment 1 or 2, this embodiment discloses a multi-material component integrated forming additive manufacturing method, including a powder spreading step. The required powder is laid on the forming cylinder 11, and the powder spreading step includes a local powder replacement process on the working surface of the forming cylinder 11, and the replacement process is realized by any one of the manufacturing devices provided above: including the powder cleaning step and powder replenishment steps;

[0082] The powder cleaning step is: under the action of the driving mechanism, by changing the position of the powder cleaning nozzle 8 in the space, using the powder cleaning nozzle 8 to complete the powder removal of the powder in the selected area of ​​the working surface of the forming cylinder 11, and obtain a powder removal area;

[0083] The powder replenishment step is to replenish powder into the powder r...

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Abstract

The invention discloses an integrated forming additive manufacturing device and method of a multi-material component. The forming device comprises a powder feed system and a forming cylinder. The powder feed system comprises a powder flow powder feeder, powder feed pipelines and a multi-way powder mixing nozzle. The multiple powder feed pipelines are arranged, and the powder feed pipelines serve as pipelines used for allowing the powder flow powder feeder to convey powder to the multi-way powder mixing nozzle. The device further comprises a powder clearing system. The powder clearing system comprises a dust collector, a powder clearing pipeline and a powder clearing nozzle. The powder clearing pipeline serves as a connecting pipeline between the dust collector and the powder clearing nozzle, so that when the dust collector works, suction force for sucking powder on a powder feed cylinder and the forming cylinder is generated at the inlet end of the powder clearing nozzle. The forming device further comprises a drive mechanism used for changing positions of the multi-way powder mixing nozzle and the powder clearing nozzle in space. Under the action of the drive mechanism, the work coverage area of the multi-way powder mixing nozzle and the powder clearing nozzle can cover the whole work face of the forming cylinder. The method is based on the device. By means of the device and method provided by the scheme, integrated forming additive manufacturing of the multi-material component can be achieved.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to an additive manufacturing device and method for integrated forming of multi-material components. Background technique [0002] Aeronautics, aerospace, nuclear industry, military and other fields require the parts manufactured to be more lightweight and integrated to obtain higher product system performance and compact structure. In order to produce high-quality and high-reliability products, parts are gradually required to be assembled from traditional single-material parts, and gradually integrated into multi-material parts to achieve zero-gap integrated forming of different material parts. However, the complex structural forming of multi-material parts is always an insurmountable problem, and it is urgent to establish a new multi-material integrated forming processing technology. [0003] At present, only simple unidirectional material gradient parts can be prep...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00B22F10/00B22F10/36B22F12/58B22F12/55B22F12/53B22F10/68B22F10/28Y02P10/25
Inventor 汤金钢黄文何建国黄姝珂王国伟赵庄杨家林
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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