Method for manufacturing a part by selective laser fusion or sintering of powders of different materials

摘要

The method involves casting a layer of 904L stainless steel powder upto a level above a horizontal upper surface of a plate (21) for fabricating a three-dimensional piece (20). The layer of steel powder is selectively sintered or fused by a laser to obtain a circular solid part of a piece layer. The stainless steel powder that is not sintered is removed. Another layer of copper powder is casted upto the level above the plate surface. The layer of copper powder is selectively sintered and fused by the laser to obtain another solid part of the piece layer. An independent claim is also included for a machine for forming a piece by fusion or selective sintering of powder, comprising a laser.