Patent · US Active

Method for stabilizing a powder bed by means of vacuum for additive manufacturing

US9533452B2 · kind B2 · utility

39Cited by

1References

22Claims

0Family size

Assignee

BUNDESREPUBLIK DEUTSCHLAND, VERTRETEN DURCH DAS BUNDESMINSITERIUM FÜR WIRTSCHAFT UND ENERGIE, DIESES VERTRETEN DURCH DEN PRÄSIDENTEN DER BAM, BUNDESANSTALT FÜR MATERIALFORSCHUNG UND -PRÜFUNG · DE

Inventors

Jens Guenster · Clausthal-Zellerfeld, DE
Andrea Zocca · Berlin, DE
Cynthia Morais Gomes · Berlin, DE
Thomas Muehler · Clausthal-Zellerfeld, DE

Key dates

Filing date	Sep 27, 2013
Grant date	Jan 3, 2017
Priority date	—
Expiry date	Sep 27, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a device and a method for stabilizing a powder bed by means of low pressure for an additive manufacturing method, wherein the device comprises: a container open at least on one side, comprising a bottom, at least one side wall and a container opening; a filter in or above the bottom and/or in the at least one side wall, wherein an area occupied by the filter corresponds to the area of the bottom or the area of the side wall and wherein the filter is substantially impermeable to a powder comprising the powder bed; and a connection at the bottom and/or at the side wall of the container or on a side of the filter facing away from the container opening, wherein the connection is suitable for connection to a suction pump, such that a powder bed arranged in the container is pressed against the filter and stabilized by means of a vacuum produced by the suction pump.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.