Method for producing titanium alloy turbine blades and titanium alloy turbine blades
AssigneesKabushiki Kaisha Toshiba, Boehler Schmiedetechnik Gesellschaft mit beschrankter Haftung & Company Kommandit Gesellschaft
InventorsMasaru Yamamoto, Hironobu Yamamoto, Herbert Puschnik, Manfred Koren
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Abstract
A method for producing titanium alloy turbine blades comprising the steps of (a) forming turbine blades of titanium alloy through hot forging or machining, (b) cooling leading edges on tip portions of the turbine blades including covers thereof formed through hot forging or machining faster than blade main body after final hot forging or solid solution treatment, and (c) heat treating the cooled turbine blades. With this method, it is possible to manufacture titanium turbine blades in an economical fashion and obtain titanium alloy turbine blades superior in reliability by preventing erosion.
Claims15
A method for producing titanium alloy turbine blades comprising a step of forming titanium alloy turbine blades by hot forging, a step of cooling the leading edges including cover on the tip portions of the turbine blades formed by the hot forging faster than the blade main bodies, and a step of heat treating the cooled turbine blades.
A method for producing titanium alloy turbine blades comprising a step of forming titanium alloy turbine blades by hot forging or machining, a step of solid solution treating the turbine blades formed by the hot forging or machining, a step of cooling the leading edges including cover on the tip portions of the turbine blades faster than the blade main bodies after solid solution treatment, and a step of heat treating the cooled turbine blades.
Titanium alloy turbine blades in which leading edges including covers on tip portions of the turbine blades are composed of the identical titanium alloy with the turbine blade main body, the leading edges including covers on the tip portions of the turbine blades being superior in erosion resistance to the titanium alloy turbine blades body.
Titanium alloy turbine blades in which leading edges including covers on tip portions of turbine blades are composed of the identical titanium alloy with the turbine blade main body, the leading edges including covers on the tip portions of the turbine blades being superior in erosion resistance to the titanium alloy turbine blade main body, wherein the method producing thereof are featured in comprising the steps of forming the turbine blades by hot forging or machining, cooling the leading edges including covers on the tip portions of the turbine blades formed by the hot forging or machining faster than the turbine blade main body after the final hot forging or solid solution treatment, and heating the cooled turbine blades.
Dependencies are inferred from the claim text.