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Title: Process for forming a long gas turbine engine blade having a main wall with a thin portion near a tip

Patent ·
OSTI ID:1131402

A process is provided for forming an airfoil for a gas turbine engine involving: forming a casting of a gas turbine engine airfoil having a main wall and an interior cavity, the main wall having a wall thickness extending from an external surface of the outer wall to the interior cavity, an outer section of the main wall extending from a location between a base and a tip of the airfoil casting to the tip having a wall thickness greater than a final thickness. The process may further involve effecting movement, using a computer system, of a material removal apparatus and the casting relative to one another such that a layer of material is removed from the casting at one or more radial portions along the main wall of the casting.

Research Organization:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,720,526
Application Number:
13/675,345
OSTI ID:
1131402
Resource Relation:
Patent File Date: 2012 Nov 13
Country of Publication:
United States
Language:
English

References (22)

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Method and apparatus for automatically sensing the configuration of a surface area and effecting a work function thereon patent September 1990
System and method for finish machining an in-process part having an inaccessible interior cavity patent August 1995
Gas turbine component refurbishment apparatus and repair method patent April 2002
Post-cast EDM method for reducing the thickness of a turbine nozzle wall patent May 2002
Nondestructive Method for Determining the Thickness of a Metallic Protective Layer on a Metallic base Material via a Different type of Layer Between the Metallic Protective Layer and the Metallic base Material patent March 2003
Method and apparatus for predicting a characteristic of a product attribute formed by a machining process using a model of the process patent February 2005
Electrochemical machining tool assembly and method of monitoring electrochemical machining patent November 2005
Method of ultrasonically inspecting airfoils patent March 2006
Dual wall turbine blade ultrasonic wall thickness measurement technique patent September 2007
Apparatus for measuring wall thicknesses of objects patent February 2011
Method for checking wall thickness of hollow core airfoil patent January 2012
Method of coalescing information about inspected objects patent August 2012
Method for repairing an apertured gas turbine component patent-application February 2003
Inspection and sorting system and method for part repair patent-application September 2003
Method and System for Interactive Virtual Inspection of Modeled Objects patent-application October 2008
Method for Machining a Workpiece patent-application December 2008
Apparatus for Measuring Wall Thicknesses of Objects patent-application July 2009
Method and apparatus for determining component parameters by means of thermography patent-application August 2009
Non-Destructive Examination Data Visualization and Analysis patent-application December 2009
Turbine Airfoil with Outer Wall Thickness Indicators patent-application December 2011

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