Method for producing a forging from a gamma titanium aluminum-based alloy
AssigneeBoehler Schmiedetechnik GmbH & Co KG
InventorsSascha Kremmer, Heinz Romen-Kierner, Wilfried Wallgram
Life of this patent
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Abstract
Method for producing a forging from a gamma titanium aluminum-based alloy. The method includes heating at least a portion of a cylindrical or rod-shaped starting or raw material to a temperature of more than 1150° C. over a cross section of the at least a portion. The at least a portion corresponds to points at which the forging to be shaped has volume concentrations. The method also includes deforming the at least a portion through an applied force to form a biscuit having different cross sectional areas over a longitudinal extension of the biscuit, and finishing the forging through a second heating to a deformation temperature and at least one subsequent step.
Claims18
A method for producing a forging from a gamma titanium aluminum-based alloy, comprising:
- heating at least a portion of a cylindrical or rod-shaped starting or raw material to a temperature of more than 1150° C. over a cross section of the at least a portion, the at least a portion corresponding to points at which the forging is to be shaped;
- deforming the at least a portion through an applied force to form a biscuit having different cross sectional areas over a longitudinal extension of the biscuit;
- at least partially coating a surface of the deformed at least a portion with an agent that reduces heat emission to achieve a drop in surface temperature;
- and
- finishing the forging through at least a second heating to a deformation temperature.
A method for producing a forging from a gamma titanium aluminum-based alloy, comprising:
- heating at least a portion of a cylindrical or rod-shaped starting or raw material to a temperature of more than 1150° C. over a cross section of the at least a portion, the at least a portion corresponding to points at which the forging is to be shaped;
- deforming the at least a portion through an applied force to form a biscuit having different cross sectional areas over a longitudinal extension of the biscuit;
- and
- finishing the forging through at least:
- a second heating to a deformation temperature,
- at least partially coating a portion of the surface with an agent that reduces heat emission to achieve a drop in surface temperature, and
- soaking and deforming the biscuit.
A method for producing turbine blades comprising:
- producing a forging from a gamma titanium aluminum-based alloy by:
- heating at least a portion of a cylindrical or rod-shaped starting or raw material to a temperature of more than 1150° C. over a cross section of the at least a portion, the at least a portion corresponding to points at which the forging is to be shaped;
- deforming the at least a portion through an applied force to form a biscuit having different cross sectional areas over a longitudinal extension of the biscuit;
- at least partially coating a surface of the biscuit with an agent that reduces heat emission to achieve a drop in surface temperature;
- finishing the forging through at least a second heating to a deformation temperature;
- and
- producing turbine blades from the forgings.
Dependencies are inferred from the claim text.