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Functional low-loss cuznal micro-nano powder core wire material for laser additive manufacturing and preparation method thereof

A powder core wire material and laser additive technology are applied in the functional low-loss CuZnAl micro-nano powder core wire material for laser additive manufacturing and its preparation, as well as in the fields of laser additive manufacturing materials and their preparation, and can solve the problem of shape memory. Function loss and other problems, to achieve the effect of weakening function loss, inhibiting zinc evaporation, and inhibiting loss

Active Publication Date: 2019-12-03
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 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 cuznal micro-nano powder core wire material for laser additive manufacturing and preparation method thereof
  • Functional low-loss cuznal micro-nano powder core wire material for laser additive manufacturing and preparation method thereof

Examples

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example 1

[0029] Such as figure 2 shown.

[0030] A functional and low-loss CuZnAl micro-nano powder core wire material for laser additive manufacturing, which is prepared according to the following steps. First, disperse 4g of nano-aluminum powder in ethanol to prepare a nano-suspension, and then put it together with 26g of micron zinc powder Put it into a ball mill for ball milling, and then vacuum dry to obtain micro-nano composite powder. Select 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 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 alloy powder, Cu+Al+Zn composite powder, and CuZnAl powder core wire material according to the present invention are respectively used to prepare 4mm×4mm×12mm rods, and the same cooling-deformation- Their ...

example 2

[0035] Such as figure 2 shown.

[0036] A functional and low-loss CuZnAl micro-nano powder core wire material for laser additive manufacturing, which is prepared according to the following steps. First, disperse 3.5g of nano-aluminum powder (with a particle size of 30-80 nanometers) in ethanol to prepare a nano-suspension liquid, put into a ball mill together with 24.5g of micron zinc powder (with a particle size of 50-75 microns) for ball milling, and then vacuum-dry to obtain micro-nano composite powder. Select 72g 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 then close it, and pull it into a finished product with a diameter of 0.5mm by a drawing device Powder core wire.

[0037] Under the same laser process conditions, CuZnAl alloy powder, Cu+Al+Zn composite powder, and CuZnAl powder core wire material according to the present invention are respectively u...

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Abstract

A functional and low-loss CuZnAl micro-nano powder core wire material for laser additive manufacturing and its preparation method, characterized in that the powder core wire material is composed of micron zinc powder and mass The micro-nano powder core composed of nano-aluminum powder accounting for 3.5%~4% of the entire powder core wire material and the copper skin whose mass accounts for 70%~72% of the entire powder core wire material, the sum of each component is 100%, and its preparation The method mainly includes 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, and relates to a material for laser additive manufacturing and a preparation method thereof, in particular to a functional and 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 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 1970...

Claims

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Application Information

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Patent Type & Authority Patents(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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