METHOD FOR PRODUCING A THREE-DIMENSIONAL COMPONENT

摘要

The invention relates to a method for producing a three-dimensional component by an electron-beam, laser-sintering or laser-melting process, in which the component is created by successively solidifying predetermined portions of individual layers of building material that can be solidified by being exposed to the effect of an electron-beam or laser-beam source (2) by melting on the building material, wherein thermographic data records are recorded during the production of the layers, respectively characterizing a temperature profile of at least certain portions of the respective layer, and the irradiation of the layers takes place by means of an electron beam or laser beam (3), which is controlled on the basis of the recorded thermographic data records in such a way that a largely homogeneous temperature profile is produced, wherein, to irradiate an upper layer, a focal point (4) of the electron beam or laser beam (3) is guided along a scanning path (17), which is chosen on the basis of the data record characterizing the temperature profile of at least certain portions of the layer lying directly thereunder or on the basis of the data records characterizing the temperature profiles of at least certain portions of the layers lying thereunder.

主权项

1. A method for producing a three-dimensional component by way of an electron beam, laser sintering or laser melting method, in which the component is created by successively solidifying predetermined sections of individual layers of building material solidifiable by the action of an electron or laser radiation source (2) by way of fusion of the building material, wherein thermographic data records are acquired when producing the layers, which data records in each case characterize, at least in sections, a temperature profile of the respective layer and the layers are irradiated by means of an electron or laser beam (3) which is controlled in a manner dependent on the acquired thermographic data records in such a way that a largely homogeneous temperature profile is generated,
characterized in that a focal point (4) of the electron or laser beam (3) is guided along a scanning path (17) for the purposes of irradiating an upper layer, which scanning path is selected in a manner dependent on the data record characterizing, at least in sections, the temperature profile of the layer lying immediately therebelow or in a manner dependent on the data records characterizing, at least in sections, the temperature profiles of the layers lying therebelow.