Method for additively manufacturing a tip structure on a pre-existing part
US-11305353-B2 · Apr 19, 2022 · US
Method of manufacturing metal member
US11618074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11618074-B2 |
| Application number | US-202016848497-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 14, 2020 |
| Priority date | Oct 31, 2017 |
| Publication date | Apr 4, 2023 |
| Grant date | Apr 4, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A method of manufacturing a metal member including a first part and a second part includes a first fabrication process of fabricating the first part through a three-dimensional metal stack fabrication by a powder bed method, and a second fabrication process of fabricating an outer circumference of the second part through the three-dimensional metal stack fabrication by the powder bed method, and then sintering metallic powder remaining in an inner portion of the second part by hot isostatic pressing so as to fabricate the second part.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a turbine blade, the method comprising: fabricating an intermediate part that includes a blade portion and a dovetail portion using a three-dimensional metal stack fabrication by a powder bed method that converts a metallic powder from a powdered state to a bonded state to form the intermediate part, wherein the fabricating forms an inner sealed region in the dovetail portion that contains the metallic powder in the powdered state; and forming the turbine blade by sintering the metallic powder in the inner sealed region of the dovetail portion of the intermediate part using hot isostatic pressing, wherein the hot isostatic pressing converts the metallic powder in the inner sealed region of the dovetail portion from the powdered state to the bonded state. 2. The method of manufacturing the turbine blade according to claim 1 , wherein: the blade portion has a crystal structure which is either a directional solidified structure or a single crystal structure; and the dovetail portion has a crystal structure which is an isometric structure. 3. The turbine blade made by the method of manufacturing according to claim 1 . 4. The turbine blade according to claim 3 , wherein: the blade portion has a crystal structure which is either a directional solidified structure or a single crystal structure; and the dovetail portion has a crystal structure which is an isometric structure.
Assignees
Inventors
Classifications
Process efficiency · CPC title
Two or more means for feeding material · CPC title
Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title
Monocrystallinity · CPC title
by hot isostatic pressing · CPC title
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Frequently asked questions
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- What does patent US11618074B2 cover?
- A method of manufacturing a metal member including a first part and a second part includes a first fabrication process of fabricating the first part through a three-dimensional metal stack fabrication by a powder bed method, and a second fabrication process of fabricating an outer circumference of the second part through the three-dimensional metal stack fabrication by the powder bed method, an…
- Who is the assignee on this patent?
- Ihi Corp
- What technology area does this patent fall under?
- Primary CPC classification B22F3/15. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 04 2023 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).