Patent · US Active

Method of manufacturing three-dimensional objects by laser sintering

US8784721B2 · kind B2 · utility

117Cited by

2References

9Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

Jochen Philippi · Munich, DE
Thomas Mattes · Germering, DE

Key dates

Filing date	Nov 25, 2008
Grant date	Jul 22, 2014
Priority date	—
Expiry date	Apr 9, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y30/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method of manufacturing three-dimensional objects by laser sintering is provided, the object is formed by solidifying powder material layer by layer at locations in each layer corresponding to the object by means of laser radiation, wherein an IR-radiation image in an applied powder layer is detected, characterized in that defects and/or geometrical irregularities in the applied powder layer are determined on the basis of the IR-radiation image.

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