A method and apparatus for the additive production of metal parts by means of an extrusion process - composite extrusion modeling (cem)

摘要

The invention relates to a method and apparatus for the additive production of metallic components, the so-called composite - extrusion - modeling, preferably for a closed hollow structures made from metals, including the combination of the phases of the additives generating a green component is removed (b) and of the heating of the green component is removed (b) for removal of the binders and sintering of the metal parts, wherein a composite material by means of an extruder (7) for a short time plasticized and selectively to the building platform (12) in the form of an extruded material thread applied two-dimensionally, cooled and then the two-dimensional application and the cooling of the extruded material yarn to the completion of the green component is removed (b) is continued and, after completion of the green part (b) of the building platform (b) and removed in a manner known per se is subjected to binder removal and sintered. The plant for carrying out the method consists of a three-dimensionally movable kinematics, from a construction platform (12) made in the three-dimensionally movable kinematics arranged one or more extruder (7), wherein the extruder (7) of a mechanical drive (1), a heated housing (2) and a at the heated housing (2) arranged, replaceable nozzle (3) is.