Method for the Regenerative Production of a Turbine Wheel with a Shroud

• Main Authors: HAUTMANN NIKOLAUS, RUECK PETER, WILLECK HANNES, GRESS ANTONIUS, SCHNEIDER HELMUT, SCHOEPF MARTIN, BURGHARDT ANDREAS
• Format: Patent
• Language: English
• Published: 16.07.2015
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED OPERATIONS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WELDING; WORKING BY LASER BEAM

A turbine wheel includes, a hub body, a plurality of turbine blades integrally formed with the hub body, and a shroud. The shroud encompasses the hub body, is integrally formed with the turbine blades, and interconnects the respective radial outer edges of the turbine blades. A method of producing the turbine wheel in one piece via primary forming includes applying a layer of powdered material having a predetermined layer thickness to a construction platform, selectively melting the layer of powdered material with reference to a current layer form of the turbine wheel, moving the construction platform by a predetermined amount, and repeating applying, selective melting, and moving until a last layer of the turbine wheel is formed.