METAL POWDER FOR ADDITIVE MANUFACTURING

The invention relates to a metal powder for additive manufacturing having a composition comprising the following elements, expressed in content by weight: 15% ≤ Mn ≤ 35% 6% ≤ Al ≤ 15% 0.5% ≤ C ≤ 1.8% 0.4% ≤ Ti ≤ 4.5% 0 ≤ Si ≤ 3.5% P ≤ 0.013% S ≤ 0.015% N ≤ 0.100% and optionally containing Ni ≤ 8.5 w...

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Bibliographische Detailangaben
Hauptverfasser:	DEL RIO FERNANDEZ, Laura, REMENTERIA FERNANDEZ, Rosalia, SÁNCHEZ PONCELA, Manuel, GARCIA PEDROSO, Nestor
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to a metal powder for additive manufacturing having a composition comprising the following elements, expressed in content by weight: 15% ≤ Mn ≤ 35% 6% ≤ Al ≤ 15% 0.5% ≤ C ≤ 1.8% 0.4% ≤ Ti ≤ 4.5% 0 ≤ Si ≤ 3.5% P ≤ 0.013% S ≤ 0.015% N ≤ 0.100% and optionally containing Ni ≤ 8.5 wt.% and/or Cr ≤ 2.5 wt.% and/or B ≤ 0.1 wt.% and/or one or more elements chosen among Ta, Zr, Nb, V, Ti, Mo, and W in a cumulated amount of up to 2.0 wt.%, the balance being iron and unavoidable impurities resulting from the elaboration. It also deals with a process for manufacturing such powder and for manufacturing a printed part out of it. La présente invention concerne une poudre métallique pour fabrication additive ayant une composition comprenant les éléments suivants, exprimés en teneur en poids : 15 % ≤ Mn ≤ 35 % 6 % ≤ Al ≤ 15 % 0,5 % ≤ C ≤ 1,8 % 0,4 % ≤ Ti ≤ 4,5 % 0 ≤ Si ≤ 3,5 % P ≤ 0,013 % S ≤ 0,015 % N ≤ 0,100 % et contenant éventuellement Ni ≤ 8,5 % en poids et/ou Cr ≤ 2,5 % en poids et/ou B ≤ 0,1 % en poids et/ou un ou plusieurs éléments choisis parmi Ta, Zr, Nb, V, Ti, Mo et W en une quantité cumulée allant jusqu'à 2,0 % en poids, le reste étant du fer et des impuretés inévitables résultant de l'élaboration. L'invention concerne également un procédé pour la fabrication d'une telle poudre et pour la fabrication d'une pièce imprimée à partir de celle-ci.