Additive deposition system and method
US-10500784-B2 · Dec 10, 2019 · US
Electrostatic polymer aerosol deposition and fusing of solid particles for three-dimensional printing
US10919215B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10919215-B2 |
| Application number | US-201715683531-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2017 |
| Priority date | Aug 22, 2017 |
| Publication date | Feb 16, 2021 |
| Grant date | Feb 16, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An additive manufacturing system has an aerosol generator to aerosolize a powder, a deposition surface, a surface charging element to apply a blanket charge to the deposition surface, a charging print head to selectively remove portions of the blanket charge from the deposition surface, and a transport system to transport the aerosol powder from the aerosol generator to the deposition surface, the transport system having an aerosol charging element to apply charge opposite of the blanket charge to the aerosol powder. An additive manufacturing process includes creating an aerosol from a powder at a spray generator, charging the aerosol to produce a charged aerosol having a first charge, forming a blanket charge on a deposition surface having a second charge of an opposite polarity from the first charge, selectively removing regions of the blanket charge, and transporting the charged aerosol to the charged regions to form structures on the charged regions from the charged aerosol.
First claim
Opening claim text (preview).
What is claimed is: 1. An additive manufacturing system, comprising; a powder source; an aerosol generator to use a flow of gas to aerosolize powder from the source to produce an aerosol powder; a deposition surface; a surface charging element to apply a blanket charge to the deposition surface; a charging print head to selectively remove portions of the blanket charge from the deposition surface; and a transport system comprising one of either a second flow of gas or a vacuum, to transport the aerosol powder from the aerosol generator to the deposition surface, the transport system having an aerosol charging element to apply charge opposite of the blanket charge to the aerosol powder within the transport system such that the aerosol forms the part being manufactured on portions of the deposition surface where charge remains; a nozzle to receive the aerosol powder from the transport system to dispense the aerosol powder onto the deposition surface; and a movable object production stage to hold the deposition surface, the movable object production stage being translatable relative to the nozzle. 2. The system of claim 1 , further comprising an inertial impactor in the transport system to select sizes of particles. 3. The system of claim 1 , further comprising a filter in the transport system. 4. The system of claim 1 , further comprising a dispenser to dispense a supporting material between the structures. 5. The system of claim 1 , wherein the surface charging element comprises a corotron. 6. The system of claim 1 , wherein the charging print head comprises a ionographic print head. 7. The system of claim 1 , wherein the transport system comprises tubing to contain the aerosol powder as the aerosol powder moves between the aerosol generator and the deposition surface.
Assignees
Inventors
Classifications
Preparation of aerosols · CPC title
- B29C64/321Primary
Feeding · CPC title
involving the use of an electrostatic field {(B05D1/025 and B05D1/14 take precedence)} · CPC title
Auxiliary operations or equipment, e.g. for material handling · CPC title
Preparation · CPC title
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Frequently asked questions
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- What does patent US10919215B2 cover?
- An additive manufacturing system has an aerosol generator to aerosolize a powder, a deposition surface, a surface charging element to apply a blanket charge to the deposition surface, a charging print head to selectively remove portions of the blanket charge from the deposition surface, and a transport system to transport the aerosol powder from the aerosol generator to the deposition surface, …
- Who is the assignee on this patent?
- Palo Alto Res Ct Inc
- What technology area does this patent fall under?
- Primary CPC classification B29C64/321. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 16 2021 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).