TURBINE ROTOR BLADE MANUFACTURING METHOD

• Main Authors: IMANO Shinya, OTA Atsuo
• Format: Patent
• Language: English; French; German
• Published: 01.05.2019
• Subjects: BLASTING; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; COMBINED OPERATIONS; ENGINE PLANTS IN GENERAL; FERROUS OR NON-FERROUS ALLOYS; HEATING; LIGHTING; MACHINE TOOLS; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; OTHER WORKING OF METAL; PERFORMING OPERATIONS; STEAM ENGINES; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIVERSAL MACHINE TOOLS; WEAPONS

In a manufacturing method of a turbine rotor blade using an Ni-based forged alloy, provided is a manufacturing method of a turbine rotor blade having an excellent workability and a high degree of freedom in the design of a cooling structure. A manufacturing method of a turbine rotor blade according to the present invention is, in a manufacturing method of a turbine rotor blade using an Ni-based forged alloy, characterized by including: a softening process (S1) of increasing a ³' phase incoherent with a ³ phase that is a mother phase in the Ni-based forged alloy; a first working process (S21) of forming at least two members constituting a rotor blade by using the Ni-based forged alloy after subjected to the softening process; a second working process (S22) of forming cooling structural parts in the respective members; and a third working process (S23) of joining the members.