Abstract:
A component according to an exemplary aspect of the present disclosure includes, among other things, a body, a wall extending inside of the body and a plurality of vortex promoting features arranged in a helical pattern along the wall.
Abstract:
An airfoil for a gas turbine engine includes pressure and suction walls spaced apart from one another and joined at leading and trailing edges to provide an airfoil having an exterior surface that extends in a radial direction to a tip. A camber line at the tip extends from the leading edge to the trailing edge. Pressure and suction side shelves are arranged in the exterior surface on opposing sides of the camber line respectively in the pressure and suction side walls. A plateau is proud of and separates the pressure and suction side shelves. The plateau is arranged along the camber line and extends to the leading edge.
Abstract:
A gas turbine engine component includes opposing walls that provide an interior cooling passage. One of the walls has a turbulator with a hook that is enclosed within the walls.
Abstract:
In a featured embodiment, a gas turbine engine component comprises an airfoil having a leading edge, a trailing edge, and pressure and suction side walls extending from the leading edge to the trailing edge. The airfoil extends from a base to a tip. A shelf is formed in the tip, and extends from the pressure side wall, around the leading edge, to the suction side wall.
Abstract:
A mold for manufacturing a casted workpiece is, at least in-part, manufactured utilizing an additive manufacturing process. The mold may have a core having non-line-of-sight features that are additively manufactured and in contact with an outer shell of a wax mold and/or an outer shell of a casting mold of the mold. The outer shell of either the wax or casting molds may also be additively manufactured, and the shell of the casting mold may be additively manufactured as one unitary piece to the core.
Abstract:
A core (200) for use in casting an internal cooling circuit (30) within a gas turbine engine component (20), the core (200) including a core body with an outer skin (400) in which a core body additive manufacturing binder is locally eliminated.
Abstract:
A casting core (196) for an airfoil (165) includes a first portion (197) extending in a first direction and corresponding to a first cavity (179, 180) of an airfoil (165). The first portion (197) defines a reference plane along a parting line (204) formed by a casting die (202). The first portion (197) defines a plurality of grooves (212) corresponding to a plurality of trip strips (195) of the airfoil (165). Each of the plurality of grooves (212) defines a respective groove axis (214), and the plurality of grooves (212) are distributed in the first direction along a first side of the reference plane such that one or more of the groove axes (214) are oriented with respect to a pull direction (P) of the casting die (202). A method for fabricating a gas turbine engine component is also disclosed.
Abstract:
A component (64) for a gas turbine engine includes an exterior surface that provides pressure and suction sides (86,88). A cooling passage (90) in the component (64) includes a serpentine passageway (94) that has first and second passes (118,120) respectively configured to provide fluid flow in opposite directions from one another. The first pass (118) includes first and second portions (112,114) nested relative to one another and overlapping in a thickness direction. The first and second portions (112,114) are adjacent to one another by sharing a common wall (110). The first portion (112) is provided on the suction side (88). The second portion (114)is provided on the pressure side (86).
Abstract:
A casting core (130; 200) may comprise a tip flag cavity (134) having a forward pedestal (138, 139) and a first spear pedestal (136) disposed aft of the forward pedestal (138, 139). A trailing edge discharge cavity (132) may be separated from the tip flag cavity (134) and include a first row of pedestals (140). The first row of pedestals (140) may comprise a first racetrack pedestal (160). A second row of pedestals (142) may be disposed aft of the first row of pedestals (140) and include a second racetrack pedestal (166). A third row of pedestals (144) may be disposed aft of the second row of pedestals (142) and include a circular pedestal (168). A fourth row of pedestals (146) may be disposed aft of the third row of pedestals (144) and include a second spear pedestal (170).