Indirect additive manufacturing process for fabricating bonded soft magnets
US-2021057149-A1 · Feb 25, 2021 · US
Additive manufacturing of permanent magnets with post processing
US12237105B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12237105-B2 |
| Application number | US-202117547809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2021 |
| Priority date | Dec 10, 2021 |
| Publication date | Feb 25, 2025 |
| Grant date | Feb 25, 2025 |
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- Title
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Abstract
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Permanent magnets and methods of making the same are disclosed herein. The permanent magnets include a 3D-printed, i.e., additively manufactured, framework and an infiltrate such that there is a discrete magnetic phase and a discrete non-magnetic phase or two discrete magnetic phases. The infiltrate may provide superior strength, elasticity or magnetic properties.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making a permanent magnet comprising: additively manufacturing a framework of a first composition layer by layer, the framework having a pathway system of predetermined shape and defining one or more pores; disposing an infiltrate, including MnBi, Al—Si(Ge), or Al—Si(Ge)—Fe(Co,Cr), within the pathway system; sintering or melting the infiltrate; and solidifying the infiltrate such that it is disposed within the pathway system, and that the framework and infiltrate form a body having discrete phases. 2. The method of claim 1 , where the additively manufacturing is laser melting. 3. The method of claim 2 , wherein the first composition is Nd—Fe—B. 4. The method of claim 3 , wherein the infiltrate includes MnBi. 5. The method of claim 1 , wherein the framework defining the pathway system is formed by varying hatch spacing. 6. The method of claim 2 , wherein the framework defining the pathway system is formed by varying laser power. 7. The method of claim 1 , wherein the pathway system is a venous pathway system. 8. The method of claim 3 , wherein the infiltrate includes Al—Si(Ge). 9. The method of claim 3 , wherein the infiltrate includes Al—Si(Ge)—Fe(Co,Cr). 10. The method of claim 1 , wherein the infiltrate includes MnBi. 11. The method of claim 1 , wherein the infiltrate includes Al—Si(Ge). 12. The method of claim 1 , wherein the infiltrate includes Al—Si(Ge)—Fe(Co,Cr).
Assignees
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Classifications
using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title
Materials specially adapted for additive manufacturing · CPC title
- B33Y80/00Primary
Products made by additive manufacturing · CPC title
for controlling or regulating additive manufacturing processes · CPC title
for controlling or regulating additive manufacturing processes · CPC title
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- What does patent US12237105B2 cover?
- Permanent magnets and methods of making the same are disclosed herein. The permanent magnets include a 3D-printed, i.e., additively manufactured, framework and an infiltrate such that there is a discrete magnetic phase and a discrete non-magnetic phase or two discrete magnetic phases. The infiltrate may provide superior strength, elasticity or magnetic properties.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification B33Y80/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).