Three-dimensional printing system, three-dimensional printing method, molding device, fiber-containing object, and production method thereof
US-2017210074-A1 · Jul 27, 2017 · US
Method for manufacturing a three-dimensional structure
US11117312B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11117312-B2 |
| Application number | US-201716071308-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2017 |
| Priority date | Jan 22, 2016 |
| Publication date | Sep 14, 2021 |
| Grant date | Sep 14, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is the method for manufacturing a three-dimensional structure with a less amount of internal voids or bubbles, and also to provide a 3D printer filament used for manufacturing such three-dimensional structure. The method for manufacturing a three-dimensional structure, the method comprises melting and depositing a filament using a 3D printer, the filament comprising a commingled yarn that contains a continuous reinforcing fiber (A) and a continuous thermoplastic resin fiber (B), with a dispersity of the continuous reinforcing fiber (A) in the commingled yarn of 60 to 100%.
First claim
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What is claimed is: 1. A method for manufacturing a three-dimensional structure, the method comprising melting and depositing a filament using a 3D printer, the filament comprising a commingled yarn that contains a continuous reinforcing fiber (A) and a continuous thermoplastic resin fiber (B), with a dispersity of the continuous reinforcing fiber (A) in the commingled yarn of 60 to 100%. 2. The method for manufacturing a three-dimensional structure of claim 1 , wherein the filament has an elastic modulus of 10 MPa or larger, where the elastic modulus is measured by embedding an end of a 15 mm-long filament up to 10 mm-depth by a resin to form a 25 mm-diameter cylinder shape; by inserting the cylindrical resin part directed downward into a 25 mm-diameter, 20 mm-high cylindrical hole of a jig; by fitting a 25 mm-diameter disk-like weight from above the cylindrical resin part into the jig; and thereby applying load at a testing speed of 0.2 mm/min. 3. The method for manufacturing a three-dimensional structure of claim 1 , wherein the filament contains a commingled yarn and a reinforcing member. 4. The method for manufacturing a three-dimensional structure of claim 3 , wherein the reinforcing member is a thermoplastic resin fiber (C). 5. The method for manufacturing a three-dimensional structure of claim 1 , wherein the continuous reinforcing fiber (A) is longer than 30 mm. 6. The method for manufacturing a three-dimensional structure of claim 1 , wherein the continuous thermoplastic resin fiber (B) contains thermoplastic resin b as a constituent, which is a polyamide resin. 7. The method for manufacturing a three-dimensional structure of claim 1 , wherein the continuous thermoplastic resin fiber (B) contains thermoplastic resin b as a constituent, which is a polyamide resin that contains a structural unit derived from diamine and a structural unit derived from dicarboxylic acid, and, 50 mol % or more of the structural unit derived from diamine is derived from xylylenediamine. 8. The method for manufacturing a three-dimensional structure of claim 1 , wherein the continuous reinforcing fiber (A) is a carbon fiber or a glass fiber. 9. The method for manufacturing a three-dimensional structure of claim 1 , wherein the continuous thermoplastic resin fiber (B) has an impregnation rate of 80% or below.
Assignees
Inventors
Classifications
Wound or wrapped core or coating [i.e., spiral or helical] · CPC title
including aramid fibres · CPC title
Carbon; Pitch · CPC title
Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title
- B29C64/118Primary
using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title
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Frequently asked questions
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- What does patent US11117312B2 cover?
- Provided is the method for manufacturing a three-dimensional structure with a less amount of internal voids or bubbles, and also to provide a 3D printer filament used for manufacturing such three-dimensional structure. The method for manufacturing a three-dimensional structure, the method comprises melting and depositing a filament using a 3D printer, the filament comprising a commingled yarn t…
- Who is the assignee on this patent?
- Mitsubishi Gas Chemical Co
- 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 Sep 14 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).