THREE-DIMENSIONAL MODELED OBJECT AND SUPPORT FORMING METHOD

• US 20160368224A1
• Filed: 06/27/2014
• Published: 12/22/2016
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: CMET Inc. (Nabtesco Corporation)
• Original Assignee: CMET Inc. (Nabtesco Corporation)
• Inventors: OOBA, Yoshikazu, SUZUKI, Kokichi, DAICHO, Yuuya
• Granted Patent: US 10,124,540 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B22F 10/14 by jetting of binder onto a bed of metal powder
• CPC Class Codes: B22F 10/28 Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• CPC Class Codes: B22F 10/47 characterised by structural features
• CPC Class Codes: B22F 10/68 Cleaning or washing
• CPC Class Codes: B29C 64/153 using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• CPC Class Codes: B29C 64/165 using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• CPC Class Codes: B29C 64/40 Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 30/00 Apparatus for additive manufacturing; Details thereof or accessories therefor
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: Y02P 10/25 Process efficiency

Abstract

The present invention is a three-dimensional modeled object including: a shaping material which is layered on a fabrication table; a modeled article which is formed inside the shaping material; and a support which is formed inside the shaping material and is formed with a predetermined gap with respect to the modeled article.

Claims

1. A three-dimensional modeled object comprising:

a shaping material which is layered on a fabrication table;

a modeled article which is formed inside the shaping material; and

a support which is formed inside the shaping material and is formed with a predetermined gap with respect to the modeled article.

2. The three-dimensional modeled object according to claim 1,

wherein a plurality of the modeled articles is formed in the height direction, and

the support includes a plate-shaped support which is provided between two modeled articles adjacent to each other in the height direction.

3. The three-dimensional modeled object according to claim 2,

wherein the support includes a columnar support which is higher than the modeled article formed between the fabrication table and the plate-shaped support or the adjacent plate-shaped supports.

4. The three-dimensional modeled object according to claim 3,

wherein the columnar support is integrally formed with one of the upper and lower plate-shaped supports.

5. The three-dimensional modeled object according to claim 1,

wherein the support has a shape corresponding to the shape of the modeled article.

6. The three-dimensional modeled object according to claim 1,

wherein the support has a hollow portion therein.

7. The three-dimensional modeled object according to claim 1, further comprising:

an offset layer which is formed by the shaping material between the fabrication table and the modeled article formed on the fabrication table.

8. The three-dimensional modeled object according to claim 1,

wherein the support has the same composition as the modeled article.

9. The three-dimensional modeled object according to claim 1,

wherein the shaping material includes a non-fluid material including powder, wax, jelly, or sol.

10. The three-dimensional modeled object according to claim 9,

wherein the shaping material is the powdery non-fluid material, and

the three-dimensional modeled object is formed by a three-dimensional layered modeling apparatus using a powdery molding method including a powder sintering method, a powder melting method, or a powder bed and inkjet head 3D printing method.

11. A support forming method of a three-dimensional layered modeling apparatus that carries out repeatedly a process of coating one layer of a shaping material onto a fabrication table and a process of forming one layer of a modeled article by processing the coated shaping material,

wherein when one layer of the modeled article is formed, a support is formed with a predetermined gap with respect to the modeled article.

12. The support forming method according to claim 11,

wherein an offset layer is formed by the shaping material between the fabrication table and a modeled article formed on the fabrication table.

13. The support forming method according to claim 11,

wherein the support has the same composition as the modeled article.

14. The support forming method according to claim 11,

wherein the shaping material includes a non-fluid material including powder, wax, jelly, and sol.

15. The support forming method according to claim 14,

wherein the shaping material is the powdery non-fluid material, and

the support forming method is applied to a three-dimensional layered modeling apparatus that uses a powdery molding method including a powder sintering method, a powder melting method, or a powder bed and inkjet head 3D printing method.