Patent · US Active

Method and apparatus for producing three-dimensional objects

US9782933B2 · kind B2 · utility

2Cited by

72References

19Claims

0Family size

Assignee

Arcam AB · SE

Inventors

Daniel Jonasson · Umeå, SE
Morgan Larsson · Heby, SE
Ulf Ackelid · Umeå, SE
Anders Snis · Uddevalla, SE
Tomas Lock · Heby, SE

Key dates

Filing date	Feb 10, 2015
Grant date	Oct 10, 2017
Priority date	—
Expiry date	Sep 28, 2035

Classification

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

Abstract

The invention concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder-lifting detection device (10, 10a, 10b, 10c, 10d, 10e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).

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