Patent · US Active

Method and device for controlling the exposure of a selective laser sintering or laser melting device

US10137633B2 · kind B2 · utility

1Cited by

0References

8Claims

0Family size

Assignee

CL SCHUTZRECHTSVERWALTUNGS GMBH · DE

Inventors

Frank Herzog · Lichtenfels, DE
Florian Bechmann · Lichtenfels, DE
Markus Lippert · Lichtenfels, DE
Johanna Windfelder · Breitbrunn, DE

Key dates

Filing date	Nov 5, 2015
Grant date	Nov 27, 2018
Priority date	—
Expiry date	Nov 5, 2035

Classification

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

Abstract

A method for controlling the exposure of a selective laser sintering or laser melting apparatus. The method includes providing a selective laser sintering apparatus or laser melting apparatus that uses successive solidification of layers of a powder-type construction material that can be solidified using radiation. The apparatus comprises an irradiation device for irradiating layers of the construction material that has a plurality of scanners that can separately be actuated, simultaneously irradiating the construction material, the separate detection of irradiation times of each scanner and/or the irradiation areas detected by each scanner, and storing the detected irradiation times and/or irradiation areas; comparing the irradiation times and/or irradiation areas of the scanners with each other; re-determining the surface sections of a powder layer to be irradiated by each scanner so the irradiation times for each scanner are approximated to each other and/or the irradiation areas of each scanner are aligned.

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