Patent · US Active

Device and method for a layerwise manufacturing of a three-dimensional object from a building material in powder form

US8658078B2 · kind B2 · utility

65Cited by

15References

17Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

Jochen Weidinger · Birkenfeld, DE
Frank Müller · Birkenfeld, DE
Florian Pfefferkorn · Munich, DE

Key dates

Filing date	Feb 14, 2011
Grant date	Feb 25, 2014
Priority date	—
Expiry date	Feb 14, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y50/02
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method is provided, by which a three-dimensional object is manufactured by a subsequent solidification of layers of a building material in powder form at the positions in the respective layer that corresponds to the cross-section of the object by means of the action of a laser or another energy source,wherein as building material in powder form a material is used which contains the old powder that has remained as unsolidified powder in the manufacturing of one or more previously formed objects and a proportion of new powder that has not been used before in any manufacturing process,characterized in thatthe building material in powder form is mechanically consolidated when a layer is applied.

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