Eos Gmbh Electro Optical Systems

Peter Hein

Frank Müller

Disclosed are mixtures for use in additive manufacturing, wherein the powder mixture comprises first and second materials. The first material includes a metal alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a reinforcement material comprising powder particles having a particle diameter of from 1 to less than 30 &#x3bc;m (as determined by laser scattering or laser diffraction). The inventive powder mixtures allows for the processing to three dimensions objects which are free of cracking and which thus have favourable mechanical characteristics. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, three dimensional objects prepared accordingly and devices for implementing processes for the preparation of such objects, as well as the use of a corresponding powder mixture to supress crack formation in a three-dimensional object, which is prepared by additive manufacturing.

Processing tool and a method for its production by means of an additive layer-wise building process

A device and a method for manufacturing a three-dimensional object () by solidifying layers () of a material in powder form at those positions corresponding to the respective cross-section of the object () are provided. The device comprises an application device () for applying layers of the material in powder form () in the building area (), which can be moved over the building area (). The application device () is formed to have a first longitudinal wall () and a second longitudinal wall () that are connected to one another via two side walls. The application device () is provided with a fluidization device for homogenizing the material in powder form (). This fluidization device comprises at least one hollow body having escape openings in its walls, through which escape opening a gas can flow from the hollow body into the material in powder form ().

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Munich, Georgia

Peter Hein