METHOD OF OPERATING AN IRRADIATION SYSTEM, IRRADIATION SYSTEM AND APPARATUS FOR PRODUCING A THREE-DIMENSIONAL WORK PIECE

Abstract: in a method of operating an irradiation system (10) for irradiating layers of a raw material powder with laser radiation in order to produce a three-dimensional work piece (110) at least a section of a raw material powder layer (11) applied onto a carrier (102) is selectively irradiated with linearly polarized laser radiation having a degree of polarisation, dop, of no more than 99% and no less than 30%. an orientation of a plane of polarization of the linearly polarized laser radiation is controlled in dependence on an orientation of a plane of incidence of the linearly polarized laser radiation on the raw material.

Inventor(s): Christopher Stengel, Max Schniedenharn, Toni Adam Krol

CPC Classification: B22F12/44 (WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy ); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER)

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