Patent · US Active

Method and device for the improved control of the energy input in a generative layer construction method

US10525689B2 · kind B2 · utility

0Cited by

7References

12Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

Stefan Paternoster · Andechs, DE
Frank Müller · Birkenfeld, DE
Albert Fruth · Germering, DE

Key dates

Filing date	Jan 29, 2015
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Jun 12, 2036

Classification

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

Abstract

The invention relates to a method for constructing a three-dimensional object (3) in layers from a pulverulent construction material by solidifying layers of the pulverulent construction material in a successive manner at each layer point which corresponds to a cross-section of the object, wherein the solidification process is carried out by introducing thermal energy. The method has the following step: solidifying all the layer points which correspond to a cross-section of the object. The introduced thermal energy quantity is adjusted at least in a sub-region of the layer dependent on the duration of the previous solidification step for the previous powder layer or dependent on the current solidification step duration, which is calculated in advance.

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