Method for producing magnetic component using amorphous or nanocrystalline soft magnetic material

Patent metadata

Field	Value
Publication number	US-10892089-B2
Application number	US-201816148198-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Nov 20, 2017
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

The present disclosure provides a method for producing a magnetic component that enables efficient processing of an amorphous soft magnetic material or a nanocrystalline soft magnetic material. The method for producing a magnetic component comprising an amorphous soft magnetic material or nanocrystalline soft magnetic material comprises: a step of preparing a stacked body comprising a plurality of plate-shaped amorphous soft magnetic materials or nanocrystalline soft magnetic materials; a step of heating at least a portion of shearing in the stacked body to a temperature equal to or higher than the crystallization temperature of the soft magnetic materials; and a step of shearing the stacked body at the portion of shearing after the step of heating.

First claim

What is claimed is:

1. A method for producing a magnetic component comprising an amorphous soft magnetic material or a nanocrystalline soft magnetic material comprising:
preparing a first stacked body comprising a plurality of plate-shaped amorphous soft magnetic materials or nanocrystalline soft magnetic materials;
heating at least a portion of shearing in the first stacked body to a temperature equal to or higher than the crystallization temperature of the soft magnetic materials, wherein the heating includes fusion-cutting the first stacked body at a position outside the portion of shearing so as to remove a fusion-cut stacked body from the first stacked body; and
shearing the fusion-cut stacked body at the portion of shearing after the heating.

2. The method for producing a magnetic component according to claim 1 , wherein the fusion-cutting includes laser cutting, plasma cutting, or gas cutting.

3. The method for producing a magnetic component according to claim 1 , wherein the fusion-cut stacked body is sheared via punching out using a press die.

4. The method for producing a magnetic component according to claim 1 , wherein the fusion cutting includes cutting with a laser beam.

5. The method for producing a magnetic component according to claim 1 , wherein the first stacked body is fusion-cut at a position about 0.1 to 0.5 mm outside of the portion of shearing.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kamimura Airi
• Haga Kazuaki
• Komori Kensuke
• Tatebe Katsuhiko
• Fubuki Shingo

Classifications

• C21D1/26 Primary

  Methods of annealing · CPC title

• H01F41/0226

  from amorphous ribbons · CPC title

• H01F3/04

  made from strips or ribbons · CPC title

• C22C2200/02

  Amorphous · CPC title

• C21D2201/03

  Amorphous or microcrystalline structure · CPC title