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
US11413813B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11413813-B2 |
| Application number | US-202117147192-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 12, 2021 |
| Priority date | Aug 22, 2017 |
| Publication date | Aug 16, 2022 |
| Grant date | Aug 16, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
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 with an opposite polarity from the first charge, selectively removing regions of the blanket charge, leaving charged regions on the deposition surface, 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 process, comprising: creating an aerosol from a dry powder at a spray generator using a first flow of gas; charging the aerosol to produce a charged aerosol having a first charge; forming a blanket charge on a deposition surface having a second charge with an opposite polarity from the first charge; selectively removing regions of the blanket charge from the deposition surface, leaving charged regions on the deposition surface; and using one of either a second flow of gas or a vacuum to transporting the charged aerosol to the charged regions to form structures on the charged regions from the charged aerosol; and dispensing the aerosol onto the deposition surface such that the aerosol forms a part being manufactured on the charged regions of the deposition surface from layers of the aerosol. 2. The process of claim 1 , further comprising applying energy to fuse the structures. 3. The process of claim 1 , further comprising applying a support material to fill in gaps between the structures. 4. The process of claim 1 , wherein forming the blanket charge on the deposition surface comprises forming the charge using a corotron. 5. The process of claim 1 , wherein selectively removing regions of the blanket charge comprises using an ionographic print head. 6. The process of claim 1 , wherein transporting the charged aerosol comprises transporting the charged aerosol through tubing between the spray generator and the deposition surface. 7. The process of claim 1 , wherein the powder comprises a thermoplastic. 8. The process of claim 7 , further comprising curing the thermoplastic. 9. The process of claim 8 , wherein curing comprises one of a heat source, hot air, and a heated roller. 10. The process of claim 1 , wherein charging the aerosol comprises applying a charge to the opposite of the blanket charge during transporting. 11. The process of claim 1 , wherein transporting the charged aerosol comprises applying one of either a second flow of gas or a vacuum. 12. The process of claim 1 , wherein transporting the charged aerosol further comprises receiving the charged aerosol powder and dispensing the charged aerosol powder on the deposition surface. 13. The process of claim 1 , further comprising moving the deposition surface during the transporting to direct the charged aerosol to regions on the deposition surface.
Assignees
Inventors
Classifications
- B29C64/321Primary
Feeding · CPC title
Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title
Preparation · CPC title
Processes of additive manufacturing · CPC title
Preparation of aerosols · CPC title
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Frequently asked questions
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- What does patent US11413813B2 cover?
- 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 with an opposite polarity from the first charge, selectively removing regions of the blanket charge, leaving charged regions on the deposition surface, a…
- 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 Aug 16 2022 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).