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Cuznal micro-nano powder core wire material for silicon boride-enhanced laser additive manufacturing and preparation method thereof

A powder core wire material and laser additive technology are applied to materials for laser additive manufacturing and their preparation, and CuZnAl micro-nano powder core wire for silicon boride-enhanced laser additive manufacturing and their preparation fields can solve the problem of shape problems such as loss of memory function, to achieve the effect of enhancing shape memory function, reducing burning loss, and refining grains

Active Publication Date: 2021-05-25
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 silicon boride-enhanced CuZnAl micro-nano powder core wire material for laser additive manufacturing and its preparation method

Method used

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  • Cuznal micro-nano powder core wire material for silicon boride-enhanced laser additive manufacturing and preparation method thereof
  • Cuznal micro-nano powder core wire material for silicon boride-enhanced laser additive manufacturing and preparation method thereof

Examples

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Effect test

example 1

[0030] Taking the preparation of 1000g of silicon boride-enhanced CuZnAl micro-nano powder core wire for laser additive manufacturing as an example, first prepare 290g of zinc-aluminum alloy powder with a particle size of 50-75μm (including aluminum powder 39.15, 250.85 grams of zinc powder), and then disperse 30 g of silicon boride nano-powder with a particle size of 30-80 nm in ethanol to prepare a nano-suspension, and then put micron-sized zinc-aluminum alloy powder and silicon boride nano-powder together In the ball mill, the ball mill compounded to obtain 320g such as figure 1 Micro-nanopowder with core-shell structure shown. Select 680g of pure copper strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it into a finished product with a diameter of 1.5mm by a drawing device Powder core wire.

[0031] Under the same laser process conditions, CuZnAl...

example 2

[0035] Taking the preparation of 1000g of silicon boride-enhanced CuZnAl micro-nano powder core wire for laser additive manufacturing as an example, first prepare 280g of zinc-aluminum alloy powder with a particle size of 50-75μm (including aluminum powder 33.6, 246.4 grams of zinc powder), and then disperse 20 g of silicon boride nano powder with a particle size of 30-80 nm in ethanol to prepare a nano-suspension, and then put micron-sized zinc-aluminum alloy powder and silicon boride nano powder together Into the ball mill, ball mill compound to obtain 300g such as figure 1 Micro-nanopowder with core-shell structure shown. Select 700g of pure copper strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it into a finished product with a diameter of 0.5mm by a drawing device Powder core wire.

[0036] Under the same laser process conditions, CuZnAl alloy...

example 3

[0038] Taking the preparation of 1000g of SiB-reinforced CuZnAl micro-nano powder core wire for laser additive manufacturing as an example, first prepare 300g of zinc-aluminum alloy powder with a particle size of 50-75μm (including aluminum powder 45 grams of zinc powder, 255 grams of zinc powder), and then disperse 40 g of silicon boride nano-powder with a particle size of 30-80 nm in ethanol to prepare a nano-suspension, and then mix micron-sized zinc-aluminum alloy powder and silicon boride nano-powder together Put into ball mill and ball mill compound to obtain 340g such as figure 1 Micro-nanopowder with core-shell structure shown. Select 660g of pure copper strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it into a finished product with a diameter of 0.5mm by a drawing device Powder core wire.

[0039] Under the same laser process conditions, C...

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Abstract

A silicon boride-enhanced CuZnAl micro-nano powder core wire material for laser additive manufacturing and a preparation method thereof, characterized in that the powder core wire material is composed of 28% to 30% of the entire powder core wire material and its composition is zinc The micro-nano powder core composed of aluminum micron powder and silicon boride nano-powder whose mass accounts for 2% to 4% of the entire powder core wire material and copper skin whose mass accounts for 66% to 70% of the entire powder core wire material, each group The sum of the points is 100%, and its preparation method mainly includes the preparation of micro-nano powder, skin forming and powder filling, mouth closing and drawing into filaments. Using the CuZnAl micro-nano powder core wire material described in the present invention as a material for laser additive manufacturing has the characteristics of small loss of shape memory function and high forming accuracy, and avoids the low powder utilization rate that exists in the current powder as additive manufacturing materials. At the same time, it also solves the problem of using solid wire as an additive manufacturing material, which requires higher laser energy and is more likely to cause functional loss.

Description

technical field [0001] The invention belongs to the technical field of laser additive manufacturing, in particular to a material for laser additive manufacturing and a preparation method thereof, in particular to a CuZnAl micro-nano powder core wire material for laser additive manufacturing enhanced by silicon boride and its Preparation. 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 discrete-accumulation principle and driven by the three-dimensional data of the part 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. Compa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F10/28B33Y70/10
CPCB22F1/0003B33Y70/00B22F10/00B22F10/20Y02P10/25
Inventor 王宏宇张祥吴勃陈婷卓翟许强
Owner JIANGSU UNIV
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