Title:
POWDER DISTRIBUTION IN ADDITIVE MANUFACTURING OF THREE DIMENSIONAL/ARTICLES
Document Type and Number:
WIPO Patent Application WO/2015/032590
Kind Code:
A3
Abstract:
The present invention relates to a method for forming a three-dimensional article through successive fusion of parts of at least one layer of a powder bed provided on a work table. Said method comprising the steps of: providing at least a first and second powder tank, providing a first type of powder in said first powder tank having a first particle size distribution, providing a second type of powder in said second powder tank having a second particle size distribution, providing a first sub-layer of said first type of powder on said work table, providing a second sub-layer of said second type of powder on top of said first layer of said first type of powder, fusing said first and second sub-layers simultaneously with a high energy beam from a high energy beam source for forming a first cross section of said three-dimensional article.
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Inventors:
NORDKVIST JOHAN (SE)
ACKELID ULF (SE)
SNIS ANDERS (SE)
ACKELID ULF (SE)
SNIS ANDERS (SE)
Application Number:
PCT/EP2014/067095
Publication Date:
May 07, 2015
Filing Date:
August 08, 2014
Export Citation:
Assignee:
ARCAM AB (SE)
International Classes:
B22F1/052; B22F3/105; B28B1/00; B29C67/00
Domestic Patent References:
| WO2004007124A1 | 2004-01-22 | |||
| WO2013178825A2 | 2013-12-05 |
Foreign References:
| DE102007029052A1 | 2009-01-02 | |||
| US20120164322A1 | 2012-06-28 |
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