Three-dimensional printing apparatus and three-dimensional printing method
US-2019039316-A1 · Feb 7, 2019 · US
Computing device and computing method for evaluating strength of article formed by 3D printer
US12367572B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12367572-B2 |
| Application number | US-202117801411-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2021 |
| Priority date | Mar 16, 2020 |
| Publication date | Jul 22, 2025 |
| Grant date | Jul 22, 2025 |
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Abstract
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A computing device includes: a tomographic image acquisition unit that acquires a plurality of tomographic images representing shapes of reinforcing fibers and shapes of resin in a plurality of cross sections obtained when an article containing the reinforcing fibers and the resin is divided in parallel; and a computing unit that calculates a rigidity parameter of each of a plurality of small regions obtained by dividing the article, based on the plurality of acquired tomographic images.
First claim
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The invention claimed is: 1. A computing device for evaluating a strength of an article formed by a 3D printer, the device comprising: a tomographic image acquisition unit that acquires a plurality of tomographic images representing shapes of reinforcing fibers and shapes of resin in a plurality of cross sections obtained when the article containing the reinforcing fibers and the resin is divided in parallel; a computing unit that calculates a rigidity parameter of each of a plurality of small regions obtained by dividing the article, based on the plurality of acquired tomographic images; a material information specifying unit that specifies an area ratio between the reinforcing fibers and the resin in each small region and a direction of the reinforcing fibers, based on the plurality of acquired tomographic images; and a conversion unit that generates a vector image having a path representing the shapes of the reinforcing fibers, from each of the plurality of tomographic images, wherein the computing unit calculates the rigidity parameter of each of the plurality of small regions, based on the specified area ratio and direction, the plurality of tomographic images are represented by raster images in which the reinforcing fibers and the resin are represented by pixels having different values, and the material information specifying unit specifies the direction of the reinforcing fibers, based on the vector image. 2. The computing device according to claim 1 , wherein the plurality of tomographic images represent a path of a header when the 3D printer capable of outputting the reinforcing fibers and the resin forms the article. 3. The computing device according to claim 1 , further comprising: a defect acquisition unit that acquires defect data indicating a defect location of the article, wherein the computing unit calculates the rigidity parameter of each of the plurality of small regions, based on the plurality of tomographic images and the defect data. 4. The computing device according to claim 1 , further comprising: an analysis unit that analyzes a strength of the article, based on the calculated rigidity parameter.
Assignees
Inventors
Classifications
Tomographic images · CPC title
- G06F30/23Primary
using finite element methods [FEM] or finite difference methods [FDM] · CPC title
Printing quality · CPC title
Data acquisition or data processing for additive manufacturing · CPC title
Data acquisition or data processing for additive manufacturing · CPC title
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- What does patent US12367572B2 cover?
- A computing device includes: a tomographic image acquisition unit that acquires a plurality of tomographic images representing shapes of reinforcing fibers and shapes of resin in a plurality of cross sections obtained when an article containing the reinforcing fibers and the resin is divided in parallel; and a computing unit that calculates a rigidity parameter of each of a plurality of small r…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification G06F30/23. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 22 2025 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).