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Method of fabricating a part by selective melting or selective sintering of powder beds by means of a high energy beam
Method of fabricating a part by selective melting or selective sintering of powder beds by means of a high energy beam
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机译:通过高能束通过选择性熔化或选择性烧结粉末床来制造零件的方法
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摘要
A method provides a device having a feeder vessel, a building vessel with a bottom and a fabrication plate that is movable in vertical translation, a transfer system suitable for depositing powder from the feeder vessel to the building vessel as a powder layer of constant thickness, and a high energy beam optical system suitable for scanning the surface of the deposited powder layer. A powder is placed in the feeder vessel. A first series of powder layers is deposited on the fabrication plate. The particles of powder are melted or sintered to form a plurality of columns of material that are separated from one another by particles of powder. A second series of layers of powder is deposited on the first series of layers of powder particles to form a single-piece element. A thermal insulation platform is formed between the fabrication plate and said single-piece element.
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