Method for additively manufacturing at least one three-dimensional object
US-2019224750-A1 · Jul 25, 2019 · US
Method of manufacturing three-dimensional shaped object
US10933583B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10933583-B2 |
| Application number | US-202016737998-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 9, 2020 |
| Priority date | Jan 11, 2019 |
| Publication date | Mar 2, 2021 |
| Grant date | Mar 2, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
A method of manufacturing a three-dimensional shaped object in which the three-dimensional shaped object is manufactured by laminating layers includes: a layer formation step of forming layers using a material containing powder and a binder; a removal step of removing a portion of the material in a boundary region including at least one of an end portion of a shaping region of the three-dimensional shaped object in the layer and an outer portion of the shaping region adjacent to the end portion by irradiating the boundary region with a laser; and a melting and solidifying step of melting and solidifying the material after melting in the shaping region by performing irradiation with the laser.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a three-dimensional shaped object in which the three-dimensional shaped object is manufactured by laminating layers, the method comprising: a layer formation step of forming a layer using a material containing powder and a binder; a removal step of removing a portion of the material in a boundary region to form a recess in the boundary region by irradiating the boundary region with a laser, the boundary region including at least one of an end portion of a shaping region of the three-dimensional shaped object in the layer and an outer portion of the shaping region adjacent to the end portion; and a melting and solidifying step of melting and solidifying the material after melting in the shaping region by performing irradiation with the laser. 2. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein a laser irradiation position in the removal step includes the boundary region in a laser irradiation start position in the melting and solidifying step. 3. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein the irradiation with the laser in the melting and solidifying step is performed by moving the laser irradiation position in a line shape, and a laser irradiation position in the removal step includes the boundary region in a width direction of the line. 4. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein a laser irradiation position in the removal step includes the boundary region around an entire periphery of the shaping region. 5. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein a laser intensity in the removal step is an intensity at which a laser irradiation position is heated equal to or higher than a thermal decomposition temperature of the binder. 6. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein a laser intensity in the removal step is lower than an intensity at which energy of irradiation with the laser reaches beyond one layer of the layers. 7. The method of manufacturing a three-dimensional shaped object according to claim 1 , wherein in the removal step, the portion of the material in the boundary region is removed by irradiating only the boundary region with the laser.
Assignees
Inventors
Classifications
Process efficiency · CPC title
- B28B1/001Primary
Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material (selective deposition modelling of metallic powder B22F10/00; rapid manufacturing of 3D objects in general and in particular of plastics B29C64/00) · CPC title
Build-up welding · CPC title
- B29C64/188Primary
involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control (surface shaping B29C59/00; after-treatment of articles without altering their shape B29C71/00) · CPC title
Conditioning of environment · CPC title
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Frequently asked questions
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- What does patent US10933583B2 cover?
- A method of manufacturing a three-dimensional shaped object in which the three-dimensional shaped object is manufactured by laminating layers includes: a layer formation step of forming layers using a material containing powder and a binder; a removal step of removing a portion of the material in a boundary region including at least one of an end portion of a shaping region of the three-dimensi…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification B28B1/001. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 02 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).