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Functional low loss type CuZnAl micro-nano powder cored wire for laser additive manufacturing and preparation method thereof

A technology of powder core wire material and laser additive material, which is applied in the field of materials for laser additive manufacturing and its preparation, and the field of laser additive manufacturing with low loss CuZnAl micro-nano powder core wire material and its preparation, which can solve the problem of shape memory Function loss and other problems, to achieve the effect of reducing function loss, inhibiting loss, and inhibiting the evaporation of zinc

Active Publication Date: 2018-11-06
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the CuZnAl alloy laser additive manufacturing process is prone to relatively serious loss of shape memory function, and to invent a low-loss type CuZnAl micro-nano powder core wire material for laser additive manufacturing and its preparation method

Method used

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  • Functional low loss type CuZnAl micro-nano powder cored wire for laser additive manufacturing and preparation method thereof
  • Functional low loss type CuZnAl micro-nano powder cored wire for laser additive manufacturing and preparation method thereof

Examples

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example 1

[0029] Such as figure 2 Shown.

[0030] A functional low-loss CuZnAl micro-nano powder core wire for laser additive manufacturing is prepared according to the following steps. First, 4g nano aluminum powder is dispersed in ethanol to prepare a nano suspension, and then placed together with 26g micron zinc powder Ball mill in a ball mill, and then vacuum dry to obtain micro-nano composite powder. Choose 70g of pure copper strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the micro-nano composite powder into the U-shaped groove and close the mouth, and pull it into a finished product with a diameter of 1.5mm through a drawing device Powder core wire.

[0031] Under the same laser process conditions, the CuZnAl alloy powder, Cu+Al+Zn composite powder, and the CuZnAl powder core wire of the present invention with the same composition were used to prepare 4mm×4mm×12mm rods, and the same cooling-deformation- Their shape memory performance under the...

example 2

[0035] Such as figure 2 Shown.

[0036] A functional low-loss CuZnAl micro-nano powder core wire for laser additive manufacturing, prepared according to the following steps, first disperse 3.5g nano aluminum powder (30-80 nanometers in diameter) in ethanol to prepare nano-suspension The solution is then put into a ball mill together with 24.5g of micron zinc powder (50-75 microns in diameter), and then vacuum dried to obtain a micro-nano composite powder. Choose 72g of pure copper strip with a width of 10mm and a thickness of 0.5mm, roll it into a U-shape, add the micro-nano composite powder into the U-shaped groove and close the mouth, and pull it into a finished product with a diameter of 0.5mm through a drawing device Powder core wire.

[0037] Under the same laser process conditions, the CuZnAl alloy powder, Cu+Al+Zn composite powder, and the CuZnAl powder core wire of the present invention with the same composition were used to prepare 4mm×4mm×12mm rods, and the same cooling...

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Abstract

The invention discloses a functional low loss type CuZnAl micro-nano powder cored wire for laser additive manufacturing and a preparation method thereof. The functional low loss type CuZnAl micro-nanopowder cored wire is characterized by being composed of, by mass, 24.5%-26% of micron zinc powder, 3.5%-4% of nano aluminum powder and 70%-72% of a copper sheet, and the sum of the components is 100%. The preparation method mainly includes the steps of micro-nano powder preparation, skin forming and powder filling, closing and drawing into the wire. The CuZnAl micro-nano powder cored wire is usedas a laser additive manufacturing material, has the characteristics of small loss of shape memory function, high forming precision and the like, the problem of the low utilization rate of powder whenpowder is used as additive manufacturing materials is avoided, and the problem that high laser energy is more likely to cause functional loss when solid wire materials are used as the additive manufacturing materials is also solved.

Description

Technical field [0001] The invention belongs to the technical field of laser additive manufacturing, and relates to a material for laser additive manufacturing and a preparation method thereof, in particular to a functional low-loss CuZnAl micro-nano powder core wire material for laser additive manufacturing and a preparation method thereof . Background technique [0002] Laser additive manufacturing technology refers to an advanced manufacturing technology that uses laser as an energy source and is based on the principle of discrete-stacking and is driven by part three-dimensional data to directly manufacture parts. However, the research and development of materials for laser additive manufacturing is still in its infancy, and there are relatively few types of materials that can be used, which greatly limits the wide application of this advanced manufacturing technology. [0003] CuZnAl alloy is a new type of functional memory material that emerged in the 1970s. Compared with Ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B33Y70/00B22F3/105
CPCB22F1/00B33Y70/00B22F10/00B22F10/25Y02P10/25
Inventor 王宏宇张祥刘晨曦朱长顺孙永毅
Owner JIANGSU UNIV
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