[T6] AM Beam Based Technologies

[14B-T6-06] Multi -Material Parts Production by Selective Laser Melting

*Y. Chivel¹ (1.Merphotonics, France)

キーワード：multi ; laser ; melting; cross-contamination; dissolution

New method for 3D multi-material parts production has been elaborated. SLM machine concept and concept of the build platform cleaning system is presented and discussed. A method involves the selection of powders ofvarious materials according to diameter, the successiveapplication of layers of powder of a given thickness duringthe vertical displacement of a piston of bild chamber and the programmed selectivesintering/melting of a given area in the plane of each layer. When the object-sintering process is finished, the unsintered powder is removed from the build chamber, and the powders are separated according to diameter, thus separating the powders of dissimilar materials. The separated powders are returned to feed containers and are re-used. Influence of dissolution on the accuracy of the boundaries of various metals is estimated . Investigations of material cross - contamination are presented. Experimental SLM machine has been constructed .