SELECTIVE SINTERING AND POWDERBED CONTAINMENT FOR ADDITIVE MANUFACTURING

Title:

SELECTIVE SINTERING AND POWDERBED CONTAINMENT FOR ADDITIVE MANUFACTURING

Document Type and Number:

WIPO Patent Application WO/2021/003309

Kind Code:

A3

Abstract:

A processing machine (10) for building an object (11) from powder (12) includes a build platform (32) that supports a powder layer (14), and an energy system (22). The energy system (22) selectively heats a portion of the powder (12) to generate a sintered portion (26) in the powder layer (14); and subsequently melts the powder (12) to generate a melted portion (28) in the sintered portion (26) of the powder layer (14) to form the object (11). The sintered portion (26) is smaller than the entire powder layer (14). Thus, only a selected, sintered portion (26) of the powder layer (14) is sintered, instead of the entire powder layer (14). A containment structure (611 B) can be concurrently formed to capture unsintered powder (29).

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Inventors:

PHILLIPS ALTON (US)
CHOI YEON-JUN (US)
GUO LEXIAN (US)
SMITH DANIEL (US)
BINNARD MICHAEL (US)
TYMINSKI JACEK (US)
GOODWIN ERIC (US)
MARQUEZ JOHNATHAN (US)
HERR BRETT (US)
BJORK MATTHEW (US)
CHANG PATRICK (US)
ISHIKAWA MOTOFUSA (JP)
COON PAUL (US)

Application Number:

PCT/US2020/040565

Publication Date:

April 01, 2021

Filing Date:

July 01, 2020

Export Citation:

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Assignee:

NIKON CORP (JP)

International Classes:

B22F3/105; B22F10/20; B22F10/30; B22F10/70; B29C64/153; B29C64/236; B29C64/241; B29C64/245; B29C64/295; B29C64/357; B29C64/379; B29C64/393; B33Y10/00; B33Y30/00; B33Y50/02

Domestic Patent References:

WO2013092994A1	2013-06-27
WO2019102016A1	2019-05-31
WO2014095208A1	2014-06-26
WO2015054340A2	2015-04-16
WO2016026666A1	2016-02-25

Foreign References:

US20120211926A1	2012-08-23
US20190047226A1	2019-02-14
EP2583774A2	2013-04-24
EP3421225A1	2019-01-02
US20160211116A1	2016-07-21
US10052821B2	2018-08-21
US20190009333A1	2019-01-10
US20190070663A1	2019-03-07

Other References:

C. KÖRNER: "Additive manufacturing of metallic components by selective electron beam melting - a review", INTERNATIONAL MATERIALS REVIEWS, vol. 61, no. 5, 9 May 2016 (2016-05-09), US, pages 361 - 377, XP055624304, ISSN: 0950-6608, DOI: 10.1080/09506608.2016.1176289

Attorney, Agent or Firm:

ROEDER, Steven, G. (US)

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