Process for manufacturing a shaped article, in particular powder stereolithographic or sintering process

摘要

A process for manufacturing a shaped article, in particular a stereolithographic or a selective laser sintering process, uses radiation energy. A material made of a powder is deposited layer-by-layer onto a surface and is hardened by an application of radiation energy, in tracks, in which the radiation energy impinges the layer to be hardened. The powder in each track is melted entirely or at least partially. Parallel first tracks are applied next to one another at a lateral spacing and without lateral overlap with neighboring first parallel tracks, and second tracks of radiation energy intersecting with the first tracks are applied in order to ensure the hardening of the shaped article. Powder at the intersection points of the first and second tracks is melted at least partially.