Gas turbine fuel nozzle manufacturing
AssigneePratt & Whitney Canada Corp.
InventorsLev Prociw, Harris Shafique, Lafleche Gagnon
Life of this patent
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Abstract
A method and a pre-shaped workpiece for making at least a portion of a gas turbine fuel nozzle are disclosed having opposed gripping tabs which can be secured to machine tool holders during manufacturing by a machine tool.
Claims9
A method of making at least a portion of a gas turbine fuel nozzle, the method comprising:
- providing a pre-shaped workpiece having two gripping tabs projecting therefrom adjacent opposite ends, the gripping tabs being coaxial with one another;
- securing the gripping tabs to machine tool holders;
- rotating the workpiece;
- machining the workpiece into a near-final form;
- and
- removing the gripping tabs from the workpiece.
A method of making a gas turbine fuel nozzle, the method comprising:
- providing a pre-shaped workpiece having two opposite gripping tabs thereon, the gripping tabs being aligned on a main axis of the workpiece;
- inserting the gripping tabs into holders of a machine tool;
- rotating the workpiece;
- machining the workpiece with the machine tool into a fuel nozzle in a near-final form;
- and
- removing the gripping tabs from the fuel nozzle using the machine tool.
A pre-shaped workpiece for use in a machine tool to manufacture at least a portion of a gas turbine fuel nozzle, the workpiece comprising two gripping tabs to provide a grip for the machine tool, the gripping tabs being configured and disposed to be removed from the item in a near-final form and being in registry with a main axis of the item.
The workpiece as defined in claim 8, wherein it comprises a flange portion and a stem portion, both being integral with each other.
Dependencies are inferred from the claim text.