Systems for fluid supply containment within additive manufacturing apparatuses
US-2024157647-A1 · May 16, 2024 · US
Managing powder mobility in binder jetting for additive manufacturing
US2021154926A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021154926-A1 |
| Application number | US-202117163721-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 1, 2021 |
| Priority date | Jan 9, 2018 |
| Publication date | May 27, 2021 |
| Grant date | — |
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Abstract
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Devices, systems, and methods are directed to the use of vapor phase change in binder jetting processes for forming three-dimensional objects. In general, a vapor of a first fluid may be directed to a layer of a powder spread across a build volume. The vapor may condense to reduce mobility of the particles of the powder of the layer. For example, the condensing vapor may reduce the likelihood of particle ejection from the layer and, thus, may reduce the likelihood of clogging or otherwise degrading a printhead used to jet a second fluid (e.g., a binder) to the layer. Further, or instead, the condensing vapor may increase the density of the powder in the layer which, when repeated over a plurality of layers forming a three-dimensional object, may reduce the likelihood of slumping of the part during sintering.
First claim
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1 . A method of forming an object using binder jet additive manufacturing, the method comprising: forming a layer of powder within a build chamber; generating a first fluid in a vapor phase; adjusting or maintaining an environment within the build chamber to affect a condensation of the first fluid from the vapor phase to a liquid phase; and condensing the first fluid from the vapor phase to the liquid phase on at least a portion of the layer of powder. 2 . The method of claim 1 , wherein adjusting or maintaining the environment within the build chamber includes controlling a temperature of at least a portion of the layer of powder to below a dew point of the first fluid in the vapor phase.
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- What does patent US2021154926A1 cover?
- Devices, systems, and methods are directed to the use of vapor phase change in binder jetting processes for forming three-dimensional objects. In general, a vapor of a first fluid may be directed to a layer of a powder spread across a build volume. The vapor may condense to reduce mobility of the particles of the powder of the layer. For example, the condensing vapor may reduce the likelihood o…
- Who is the assignee on this patent?
- Desktop Metal Inc
- What technology area does this patent fall under?
- Primary CPC classification B29C64/165. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu May 27 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).