TURBINE ROTOR AND METHOD FOR MANUFACTURING THE SAME
PROBLEM TO BE SOLVED: To provide a turbine rotor and a method for manufacturing the same capable of electron beam welding between a shaft and a turbine wheel by using one electron beam device, and capable of reducing the welding distortion of a shaft which occurs in the conventional electron beam we...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
09.06.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a turbine rotor and a method for manufacturing the same capable of electron beam welding between a shaft and a turbine wheel by using one electron beam device, and capable of reducing the welding distortion of a shaft which occurs in the conventional electron beam welding. SOLUTION: In the method for manufacturing the turbine rotor in which the turbine wheel and the shaft formed in a rod shape are joined by the electron beam welding, a joint part of the shaft with the turbine wheel includes at least a plane part and a groove part sequentially from the center side of the shaft, a face contact part is formed by bringing the plane part of the shaft into face-to-face contact with the plane of a joint part of the turbine wheel with the shaft, and the electron beam welding is performed from the outer peripheral side of the turbine wheel and the shaft to a depth where the groove part exists to form a welding part to the groove part in a circumferential direction. COPYRIGHT: (C)2011,JPO&INPIT |
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Bibliography: | Application Number: JP20090272160 |