Eos Gmbh Electro Optical Systems

Peter Holfelder

Thomas Mattes

Ludger Hümmeler

Ludger Huemmeler

Jörg Hamann

Joerg Hamann

Manuel Walter

Christoph Seyfert

Anoush Aghajani-talesh

Armin Witte

Anoush Aghajani-Talesh

Disclosed is a method for providing control data for manufacturing a three-dimensional object including accessing computer-based model data of at least one portion of the object, at least one data model specifying the scanning of locations of the region to be selectively solidified, using at least one beam along a first trajectory and a second trajectory substantially parallel thereto, the motion vectors of the beams in the construction plane having mutually opposite directional components during the scan along the two trajectories, and the distance between a starting point of the second trajectory and an end point of the previously scanned first trajectory is less than half a beam width of the beam at the end point of the first trajectory; and providing control data of the at least one data model for the generation of a control data set.

Hatch reversal with keyhole transfer

Disclosed is a method and device for generating additive manufacturing control data. The control data are generated such that the energy beam has an intensity distribution, at the area of incidence on the build field, in a see tion plane running perpendicularly to the beam axis of the energy beam, which intensity distribution

Method and device for generating control data for an additive manufacturing device

A method and device for generating control data for an additive manufacturing device are described, wherein build-up material is built up and selectively solidified. Irradiating the build-up material on a build field with at least one energy beam occurs An impingement surface of the energy beam is moved on the build field in order to melt the build-up material in a target area in and around the impingement surface. For generating the control data, optimization criteria and/or secondary and/or boundary conditions relating to a local target temperature distribution in the target area of the build-up material are defined so that melting of the build-up material is effected as heat conduction welding. Based on this, an optimized intensity profile of the energy beam is determined, which is substantially non-rotationally symmetric at the impingement surface on the build field.

Disclosed is a method of providing control data for an additive manufacturing device. The method includes accessing computer-based model data of at least a portion of the object to be manufactured, generating at least one data model of a region of a building material layer to be selectively solidified for manufacturing the at least one object portion. The data model specifies solidification of the building material, and the end point of the at least one solidification path a set of energy introduction parameter values is specified which generates a reference value for the radiation power per unit area in the radiation impact area of the beam bundle on the building material which is lower than the reference value for the radiation power per unit area at other locations of the solidification path, and providing control data corresponding to the generated at least one data model for generating a control data set for the additive manufacturing device.

Growing community of inventors

Neufahrn bei Freising, Germany

Peter Holfelder