Additive-based electroforming manufacturing methods and metallic articles produced thereby
US-2019024251-A1 · Jan 24, 2019 · US
Electrical discharge machining system including in-situ tool electrode
US11745278B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11745278-B2 |
| Application number | US-202017074715-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 20, 2020 |
| Priority date | Nov 2, 2017 |
| Publication date | Sep 5, 2023 |
| Grant date | Sep 5, 2023 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An additive manufactured workpiece includes one or more cavities having an inner surface. A dielectric interface is formed in the cavity, and conforms to the inner surface. The additive manufactured workpiece further includes an in-situ electrode in the cavities. The dielectric interface is interposed between the in-situ electrode and the inner surface of the workpiece.
First claim
Opening claim text (preview).
What is claimed is: 1. An additive manufactured workpiece comprising: at least one cavity having an inner surface; a dielectric interface in the cavity and conforming to the inner surface; and an in-situ electrode in the at least one cavity, wherein the dielectric interface comprises a porous film that lines the inner surface, the porous film containing a dielectric fluid, wherein the in-situ electrode is on the dielectric interface and completely fills the at least one cavity, wherein the dielectric interface is interposed between the in-situ electrode and the inner surface of the workpiece such that in-situ electrode completely covers the at least one cavity and the dielectric interface. 2. The additive manufactured workpiece of claim 1 , wherein the in-situ electrode comprises a graphite material. 3. The additive manufactured workpiece of claim 2 , wherein the graphite material is a pressurized graphite powder. 4. The additive manufactured workpiece of claim 1 , wherein the dielectric fluid includes a fluid that contains a dielectric material is selected from the group consisting of a liquid hydrocarbon, a silicone oil, ethylene glycol, propylene glycol, polyethylene glycol, glycerol, and deionized water. 5. The additive manufactured workpiece of claim 4 , wherein the porous film is composed of a polymer material selected from the group consisting of hydrophobic polymers, hydrophilic polymers, and polymer gels.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11745278B2 cover?
- An additive manufactured workpiece includes one or more cavities having an inner surface. A dielectric interface is formed in the cavity, and conforms to the inner surface. The additive manufactured workpiece further includes an in-situ electrode in the cavities. The dielectric interface is interposed between the in-situ electrode and the inner surface of the workpiece.
- Who is the assignee on this patent?
- Hamilton Sundstrand Corp
- What technology area does this patent fall under?
- Primary CPC classification B23H1/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 05 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).