Methods and apparatus for 3d printing of highly viscous materials

US11420387B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11420387-B2
Application numberUS-202017087701-A
CountryUS
Kind codeB2
Filing dateNov 3, 2020
Priority dateNov 8, 2016
Publication dateAug 23, 2022
Grant dateAug 23, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

This disclosure generally relates to methods and apparatus for 3D printing of highly viscous materials, especially to high amplitude ultrasonic vibration facilitated lower temperature 3D printing of highly viscous materials with a viscosity of at least 1000 Pa·s.

First claim

Opening claim text (preview).

We claim: 1. A 3D printing system comprising a reservoir, a nozzle, a high amplitude ultrasonic vibration generator, wherein the high amplitude ultrasonic vibration generator is configured to generate an ultrasonic vibration through a vibration probe with an amplitude of 1-200 μm near the nozzle, the nozzle is positioned at or in the close vicinity of a node of the ultrasonic vibration, wherein said vibration probe is not in physical contact with said reservoir and said nozzle. 2. The 3D printing system of claim 1 , wherein the high amplitude ultrasonic vibration generator is configured to generate an ultrasonic vibration through a vibration probe with an amplitude of 1-200 μm near the tip of the nozzle; and the tip of the nozzle is positioned at or in the close vicinity of a node of the ultrasonic vibration. 3. The 3D printing system of claim 1 , wherein the vibration probe has a ring-shaped configuration to keep the nozzle run through and within the ring-shaped configuration to provide evenly distributed vibration.

Assignees

Inventors

Classifications

  • Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title

  • Processes of additive manufacturing · CPC title

  • B29C64/118Primary

    using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title

  • B29C64/209Primary

    Heads; Nozzles · CPC title

  • Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

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Frequently asked questions

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What does patent US11420387B2 cover?
This disclosure generally relates to methods and apparatus for 3D printing of highly viscous materials, especially to high amplitude ultrasonic vibration facilitated lower temperature 3D printing of highly viscous materials with a viscosity of at least 1000 Pa·s.
Who is the assignee on this patent?
Purdue Research Foundation
What technology area does this patent fall under?
Primary CPC classification B29C64/118. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 23 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).