Functional low-loss femnsi micro-nano powder core wire material 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 laser additive manufacturing with low loss FeMnSi micro-nano powder core wire material and its preparation, materials for laser additive manufacturing and its preparation, and can solve the problem of shape memory Function loss and other problems, to achieve the effect of small loss of shape memory function, weaken function loss, and suppress loss

Active Publication Date: 2019-12-03
JIANGSU UNIV
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  • 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 FeMnSi alloy laser additive manufacturing process is prone to relatively serious loss of shape memory function, and to invent a low-function FeMnSi micro-nano powder core wire material for laser additive manufacturing and its preparation method

Method used

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

Examples

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Effect test

example 1

[0031] A kind of functional low-loss type FeMnSi micro-nano powder core wire material for laser additive manufacturing, which is prepared by the following steps (such as figure 2 ):

[0032] Firstly, 5g of nano-Si powder was dispersed in ethanol to prepare a nano-suspension, and then put into a ball mill together with 25g of micron Mn powder for ball milling, and then vacuum-dried to obtain a micro-nano composite powder.

[0033] Secondly, choose 70g of pure iron 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;

[0034] third. And it is drawn into a finished powder core wire material with a diameter of 1.5mm by a conventional drawing device to obtain the following: figure 1 The shown functional low-loss type FeMnSi micro-nano powder core wire.

[0035] Under the same laser process conditions, FeMnSi alloy powder, Fe+Mn+Si composite powder, and FeMnSi powder cor...

example 2

[0039] A kind of functional low-loss type FeMnSi micro-nano powder core wire material for laser additive manufacturing, which is prepared by the following steps (such as figure 2 ):

[0040] First, 1 g of nano-Si powder was dispersed in ethanol to prepare a nano-suspension, and then put into a ball mill together with 33 g of micron Mn powder for ball milling, and then vacuum-dried to obtain a micro-nano composite powder.

[0041] Secondly, choose 66g of pure iron 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;

[0042] third. And it is drawn into a finished powder core wire material with a diameter of 0.5mm by a conventional drawing device to obtain the following: figure 1 The shown functional low-loss type FeMnSi micro-nano powder core wire.

[0043] Under the same laser process conditions, FeMnSi alloy powder, Fe+Mn+Si composite powder, and FeMnSi powder cor...

example 3

[0045] A kind of functional low-loss type FeMnSi micro-nano powder core wire material for laser additive manufacturing, which is prepared by the following steps (such as figure 2 ):

[0046] First, 6g of nano-Si powder was dispersed in ethanol to prepare a nano-suspension, and then put into a ball mill together with 14g of micron Mn powder for ball milling, and then vacuum-dried to obtain a micro-nano composite powder.

[0047] Secondly, choose 80g of pure iron 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;

[0048] third. And it is drawn into a finished powder core wire material with a diameter of 2mm by a conventional drawing device to obtain the following: figure 1 The shown functional low-loss type FeMnSi micro-nano powder core wire.

[0049] Under the same laser process conditions, FeMnSi alloy powder, Fe+Mn+Si composite powder, and FeMnSi powder core wi...

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Abstract

A functional low-loss type FeMnSi micro-nano powder core wire material for laser additive manufacturing and its preparation method, characterized in that the micro-nano powder core wire material is composed of a micro-nano composite powder core and an iron sheet, and the micro-nano powder core It is composed of micron Mn powder whose mass accounts for 14%~33% of the entire micronano powder core wire material and nanometer Si powder whose mass accounts for 1%~6% of the entire micronano powder core wire material. The mass of the iron sheet accounts for the entire micronano powder core wire material. Material 61%~80%, the sum of each component is 100%. The preparation method mainly includes micro-nano powder preparation, skin forming and powder filling, mouth closing and drawing into filaments. Using the FeMnSi 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 low-loss FeMnSi 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] Fe-based shape memory alloys were developed later than Ni-Ti and Cu-based shape memor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B33Y70/00B22F3/105
CPCB22F1/0003B33Y70/00B22F10/00B22F10/34Y02P10/25
Inventor 王宏宇丁扬胥保文任云鹏赵磊
Owner JIANGSU UNIV
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