The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2018
Filed:
Jun. 30, 2014
Eos Gmbh Electro Optical Systems, Krailling, DE;
EOS GmbH Electro Optical Systems, Krailling, DE;
Abstract
The invention relates to a method for layered production of a three-dimensional object, wherein a powdery or fluid building material, which can be solidified by the effects of electromagnetic or particle radiation, is applied in layers having a layer thickness d, and the locations in each layer which correspond to a cross-section of the object allocated to said layer are solidified by means of electromagnetic or particle radiation. According to the invention, each cross-section consists of a contour region and an inner region and the method comprises the following sub-step: in a sequence of N successive cross-sections, wherein N is a whole number greater than 1, a partial region is defined in every cross-section as a critical region and the rest of the cross-section is defined as a non-critical region, a number of N layers are applied successively, without solidification of the non-critical regions. The non-critical regions of all N layers are not solidified in all N layers until after application of the Nth layer.