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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11691202 B1

PDFFull Text
Date of Patent:
Jul. 04, 2023

Filed:

Jul. 14, 2020

Metal 3d printing systems for using sand as supports

Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

LiLi Zheng, Novi, MI (US);

Wei Yuan, Novi, MI (US);

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Philip C Tucker

Assistant Examiner:

Jimmy R Smith, Jr

Int. Cl.
CPC ...
B22F 10/43 (2021.01); B22F 12/30 (2021.01); B22F 12/41 (2021.01); B22F 12/53 (2021.01); B22F 10/14 (2021.01); B22F 10/85 (2021.01); B22F 12/00 (2021.01); B22F 10/68 (2021.01); B29C 64/379 (2017.01); B33Y 30/00 (2015.01); B29C 64/153 (2017.01); B29C 64/393 (2017.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01);
U.S. Cl.
CPC ...
B22F 10/43 (2021.01); B22F 10/14 (2021.01); B22F 10/68 (2021.01); B22F 10/85 (2021.01); B22F 12/222 (2021.01); B22F 12/30 (2021.01); B22F 12/41 (2021.01); B22F 12/53 (2021.01); B29C 64/379 (2017.08); B22F 2203/00 (2013.01); B29C 64/153 (2017.08); B29C 64/393 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12);
Abstract

A 3-dimensional printing system for manufacturing a part is provided. The system includes a building platform having a deposited pattern of metal powder, a sand dispensing nozzle selectively supplying sand to the building platform, a binder dispensing nozzle selectively supplying binder material to the building platform, a robotic arm supporting one or more of the sand dispensing nozzle and the binder dispensing nozzle, the robotic arm moving the one or more of the sand dispensing nozzle and the binder dispensing nozzle, and a processor controlling the robotic arm to position the one or more of the sand dispensing nozzle and the binder dispensing nozzle relative to the deposited pattern of metal powder and control the sand dispensing nozzle and the binder dispensing nozzle to supply powdered sand and binder, respectively, based on a Computer Aided Drafting file associated with the part.

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