Method and device for preparing gradient functional material of flexible additional material

A gradient functional material, flexible technology, applied in additive processing, additive manufacturing, energy efficiency improvement and other directions, can solve the problems of thermal stress damage, difficult recovery of metal powder, etc., to save costs, ensure uniformity and compactness, solve Effects of thermal stress damage

Active Publication Date: 2019-11-26
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a method and device for flexible additive gradient functional materials. During the additive process, the ratio of the mixed powder of each layer is changed, thereby realizing the element gradient distribution of the additive component, and fully and uniformly mixing the different metal powders, ensuring that The uniformity and compactness of the additive components; effectively solve the problems of thermal stress damage of the prepared functionally gradient materials and the difficulty of recycling the metal powder in the preparation process, improve the service quality of the functionally gradient materials, and reduce production costs

Method used

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  • Method and device for preparing gradient functional material of flexible additional material
  • Method and device for preparing gradient functional material of flexible additional material
  • Method and device for preparing gradient functional material of flexible additional material

Examples

Experimental program
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Embodiment 1

[0022] The matrix metal powder used in Example 1 is TC4 titanium alloy powder with a particle size of 10 μm, and the mixed powder is 316L stainless steel powder with a particle size of 10 μm.

[0023] The porous film is a polymer polyester plastic film with a porosity of 0, 20%, 40%, 60%, and 80%, purchased from Shenzhen Hongmei Film Co., Ltd.

[0024] The specific steps are as follows:

[0025] (1) The movable piston 2 in the feeding barrel B moves upwards so that the thickness of the TC4 titanium alloy powder on the upper surface of the feeding barrel B is 0.6mm.

[0026] (2) Attach a layer of porous film with a porosity of 0 on the electromagnetic adsorption device, and at the same time, pass through the electromagnetic adsorption device with a size of 2.42 × 10 -5 A DC current makes the magnetic force F of the electromagnetic device x 6×10 -10 N, satisfying that the magnetic force of the electromagnetic device is equal to the gravity of the TC4 titanium alloy powder.

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Abstract

The invention relates to the field of laser additive manufacturing, in particular to a method and a device for preparing a gradient functional material of a flexible additional material. The proportion of mixed powder in each layer is changed in an additive manufacturing process, so that element gradient distribution of an additional material member is achieved. Dissimilar metal powder is fully and uniformly mixed, so that the uniformity and compactness of the additional material member are guaranteed. Meanwhile, residual powder in the mixed powder is achieved, so that the cost is saved to a great extent, and the quality of the additional material member is improved.

Description

technical field [0001] The present invention relates to the field of laser additive manufacturing, in particular to a method and device for preparing a flexible additive gradient functional material. During the additive process, the proportion of mixed powder in each layer is changed, so as to realize the element gradient distribution of the additive component and make the The dissimilar metal powders are fully and uniformly mixed to ensure the uniformity and compactness of the additive components; at the same time, the recovery of excess powder in the mixed powder is realized, which saves costs to a large extent and improves the quality of the additive components. Background technique [0002] Functionally graded materials (Functionally Graded Materials, FGMS) are a class of advanced materials, which are characterized by changes in the composition and elemental content of the material in volume, which help to change the material properties accordingly according to the functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B22F10/00B22F10/73B22F12/63B22F12/67B22F12/70B22F12/222B22F10/28Y02P10/25
Inventor 鲁金忠徐刚罗开玉
Owner JIANGSU UNIV
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