Abstract:
A method for forming a part having a dual property microstructure includes the steps of: forming a blank having a narrow top portion and a wide base portion; heating the blank to an elevated temperature; and forming a dual property microstructure in the blank by cooling different portions of the blank at different cooling rates.
Abstract:
A method for forming an article (60) by introducing one or more powders (331) into a bag (310). Vacuum is applied to the bag. The bag is sealed. The one or more powders in the sealed bag are forged to form a first precursor (604) of the article. The precursor is extruded into a shaped die to form at least a second precursor (606) of the article.
Abstract:
A method for forming an article by introducing one or more powders into a bag. Vacuum is applied to the bag. The bag is sealed. The one or more powders in the sealed bag are forged.
Abstract:
A method for forming a part having a dual property microstructure includes the steps of: forming a blank having a narrow top portion and a wide base portion; heating the blank to an elevated temperature; and forming a dual property microstructure in the blank by cooling different portions of the blank at different cooling rates.
Abstract:
A method of forming a gas turbine engine component (160) includes attaching a cover skin to an airfoil body, the airfoil body and the cover skin cooperating to define pressure and suction sides of an airfoil (161), and moving the airfoil (161) in a forming line (178) including a plurality of stations (180). The plurality of stations (180) include a set of heating stations (180B), a deforming station (180C) and a set of cool down stations (180D). The moving step includes positioning the airfoil (161) in the set of heating stations (180B) to progressively increase a temperature of the airfoil (161), then positioning the airfoil (161) in the deforming station (180C) including causing the airfoil (161) to deform between first and second dies (188, 189), and then positioning the airfoil (161) in the set of cool down stations (180D) to progressively decrease the temperature of the airfoil (161).
Abstract:
An embodiment of an apparatus includes means for peripherally welding a cavity-back blade and a cover of the cavity-back blade to form a 3-dimensional hollow blade assembly, and a plurality of bellows contained in one or both of a first die half and a second die half receiving the 3-dimensional hollow blade assembly. The plurality of bellows are disposed within the region defined around or inward of the peripherally welded interface of the cover and the blade. At least a portion of the plurality of bellows are arranged in a manner to provide pressure to the cover at approximately a 90 degree angle to each of a plurality of nodes, each node defined by an intersection of two or more ribs in the cavity-back blade.
Abstract:
A method for forming a part having a dual property microstructure includes the steps of: forming a blank having a narrow top portion and a wide base portion; heating the blank to an elevated temperature; and forming a dual property microstructure in the blank by cooling different portions of the blank at different cooling rates.