Generatively producing portion of component, which is constructed from individual powder layers, comprises heating powder layer locally on melting temperature, forming molten bath, reheating zone downstream to the molten bath

摘要

Generatively producing at least one portion of a component (2), which is constructed from individual powder layers, comprises heating a powder layer to be generated locally on a melting temperature by a first high energy beam (16), forming a molten bath (56), and reheating a zone downstream to the molten bath by a second high-energy beam to post-heating temperature and globally adjusting the component to a base temperature by a heating device (10). An independent claim is also included for a device (1), comprising a first radiation source for emitting a movable high energy beam relative to a generatively produced portion of the component for the local heating of a powder layer at a melting temperature to produce a molten bath, and a second radiation source for emitting movable second high-energy beam for post-heating the zone downstream to the molten bath at the post-heating temperature and for globally adjusting the component to a base temperature by a heating device.