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A kind of modification method of iron-based material

An iron-based material and modification technology, applied in the field of materials, can solve the problems of changing the properties of iron-based materials, and achieve the effect of improving the magnetic properties of the material

Active Publication Date: 2021-06-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the 3D printing process, metal fusion laser engraving 3D printing equipment can set laser parameters (including laser power and scanning speed), and there is currently no research on how to adjust and set laser parameters to achieve changes in the properties of iron-based materials

Method used

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  • A kind of modification method of iron-based material
  • A kind of modification method of iron-based material
  • A kind of modification method of iron-based material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the previous experiment, the printing direction was set to be 45° for the square circle and the structural twins respectively. The laser power was unchanged during each printing process, but the laser power was set to increase from 30W to 190W each time. Therefore, different batches The laser power is different in the sample 3D printing. During the printing process, the interface for setting parameters is as follows: figure 1 shown.

[0025] For each printing process, the laser scanning speed is 500mm / s.

[0026] Through the analysis of multiple printings, it is found that the DC soft magnetic test results of the square circle are the best when the laser power is 75W (the initial rotation angle is 45°, and the rotation increment is 0°), and the square circle μi with the printing direction of 45° reaches Compared with other conditions (referring to different printing laser powers), the printing direction of the square circle μi of 45° fluctuates around 0.1mH / m.

[...

Embodiment 2

[0033] In the experiment, the printing direction is set to be the square circle in the direction of 45° and 90° respectively. The laser scanning speed is unchanged during each printing process, but the laser scanning speed is set to increase from 300mm / s to 800mm / s by 25mm / s for each printing. s, therefore, the laser scanning speed is different in different batches of sample 3D printing.

[0034] For each printing process, the laser power is 75W.

[0035] Through the analysis of multiple printings, it is found that the DC soft magnetic test results of the square circle are the best when the laser scanning speed is 550mm / s (the initial rotation angle is 90°, and the rotation increment is 0°), and its Bs reaches all batches of samples Highest value: 2.2055T

[0036] Wherein, the printing direction is the 45° direction (90° direction), which refers to the initial rotation angle. In this embodiment, the initial rotation angle is 45° (90°), and the rotation increment is 0° as the...

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Abstract

The invention relates to a method for modifying iron-based materials. By changing the parameters of the 3D printing laser to modify the iron-based samples of the square ring, and then obtain various magnetic properties specific samples, and pass the DC soft magnetic test, xrd test and other screening A parameter group with high characteristic performance is obtained and promoted.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a method for modifying iron-based materials. Background technique [0002] At present, the modification methods for iron-based materials are mainly to change the composition and formula of iron-based materials, or to improve the preparation technology of iron-based materials, such as heat treatment technology, processing technology, etc., and then to change the properties of iron-based materials. [0003] Iron-based materials can be 3D printed to obtain samples of different styles, such as printing square samples or constructing twins. During the 3D printing process, metal fusion laser engraving 3D printing instruments can set laser parameters (including laser power and scanning speed), and there is currently no research on how to adjust and set laser parameters to achieve changes in the properties of iron-based materials. Contents of the invention [0004] The o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y50/02C22C33/02H01F41/00
CPCC22C33/02B33Y10/00B33Y50/02H01F41/00B22F10/00B22F10/38B22F10/36B22F10/28Y02P10/25
Inventor 严鹏飞张恩潇袁宇康严彪
Owner TONGJI UNIV
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