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1. (WO2018197506) INCREASE IN SURFACE QUALITY

Pub. No.:    WO/2018/197506    International Application No.:    PCT/EP2018/060494
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: B22F 3/105
G05B 19/4099
B33Y 10/00
B33Y 30/00
B29C 64/153
B29C 64/386
B29C 64/393
Applicants: EOS GMBH ELECTRO OPTICAL SYSTEMS
Inventors: HÜMMELER, Ludger
SCHMITT, Christopher
Title: INCREASE IN SURFACE QUALITY
Abstract:
A computer-supported method for providing control data for a generative layer construction device comprises: a first step (S1) of accessing a plurality of layer data records that have data models of a plurality of buildup material layers to be selectively solidified during production, wherein in at least one layer data record a base surface region of an object cross section exists in the associated data model, which is defined in that in at least one of p layers below the base surface region, no solidification of buildup material (15) is specified, wherein p is a predefined natural number; a second step (S2), in which the at least one layer data record is changed such that a temporal sequence for scanning the associated object cross section with energy radiation is specified such that at least one portion of the base surface region is scanned before all other parts of the object cross section to be solidified; and a third step (S3), in which the at least one layer data record changed in the second step is provided for the generation of a control data record for the generative layer construction device.