摘要:
A method for additively manufacturing a component is provided. The method may include forming a surface on the top layer of the component, scanning the surface of the top layer of the component to determine if a defect is present in the surface, and if detected, correcting the defect within the surface. Scanning the surface of the top layer of the component to determine if a defect is present in the surface may be performed by obtaining data indicative of the surface of the top layer of the component by interrogating the surface of the top layer of the component with a scanning device, and comparing the data with a reference database to determine if an irregularity is present.
摘要:
Methods for material build-up on a tip 69 of a blade 68 of a gas turbine engine 10 are provided. The method can include inserting a material supply 102 and an inflatable bladder 100 between the tip 69 and a shroud 76 such that the material supply 102 is exposed to the tip 69 and the inflatable bladder 100 is positioned between the material supply 102 and a shroud 76, inflating the inflatable bladder 100 to force contact between the material supply 102 and the tip 69, and causing relative movement between the material supply 100 and the tip 69. The relative movement, in combination with the radial biased contact between the material supply 102 and the tip 69, creates heat through friction. As such, the relative movement can frictionally weld new material from the material supply 102 onto the tip 69 of the blade 68. For example, the heat created can be sufficient to melt the surface of the material supply 102 to transfer material from the material supply 102 to the tip 69.
摘要:
CMC components (100) having microchannels (116) and methods for forming microchannels (116) in CMC components (100) are provided. For example, a method for forming microchannels (116) in a CMC component (100) comprises laying up a plurality of body plies (120) for forming a body (122) of the CMC component (100)0; laying up a microchannel ply (124) on the plurality of body plies (120) that has at least one void therein for forming at least one microchannel (116); laying up a cover ply (128) on the microchannel ply (124) to define an outer layer (130) of the CMC component (100); and processing the laid up body plies (120), microchannel ply (124), and cover ply (128) to form the CMC component (100). In another embodiment, the method comprises applying an additive matrix (132) to the body plies (120) to define at least one microchannel (116). In still other embodiments, the method comprises machining at least one microchannel (116) in the plurality of body plies (120).
摘要:
The present disclosure relates to a ceramic or metallic component (300) including a first region (305) having a first porosity ranging between 1 and 30%. The component includes a second region (310) having a second porosity that is less than the first porosity. The component includes at least one graded transition (325) between the first and second regions (305,310).
摘要:
Methods are provided for repairing a surface of a component 204 within a gas turbine engine 10. A first bladder 100 and a second bladder 200 can be installed (simultaneously or independently) within the gas turbine engine 10. The first bladder 100 and the second bladder 200 can then be inflated with an inflating fluid to form a first circumferential seal and a second circumferential seal to define an isolated area within the gas turbine engine 10. All the surfaces within the isolated area can then be coated with a masking layer 306. At least a portion of the masking layer 306 can then be removed to expose a working area, and a coating can be formed on the working area.
摘要:
The present disclosure is directed to an improved system and method for repairing a bend in a turbine blade of a turbine of a gas turbine engine (10). The system includes an articulating guide configured to fit into an access port of the turbine. The articulating guide (114) includes a proximal end (116) and a distal end (118). The system also includes a repair tool (112) configured at the distal end (118) of the articulating guide (114). Further, the repair tool (112) is configured to fit over the turbine blade. Thus, the repair tool (112) is configured to bend the turbine blade (112) to an unbent position while the turbine blade (112) is secured within the turbine.
摘要:
Methods suitable for reducing corner cracking of environmental barrier coating systems (20). The methods include forming at least one layer of a first portion (22) of the environmental barrier coating system (20) on at least a first region of the component, performing a first heat treatment, forming at least one layer of a second portion (28) of the environmental barrier coating system (20) on a second region of the component, and performing a second heat treatment to the component. Edges of the first portion (36) and edges of the second portion (38) form an angle of at most 60° with respect to a surface of the first region of the component. During the second heat treatment, the second portion (28) of the EBC system expands and the expansion of the second portion (28) of the EBC system (20) is at least partially constrained by the first portion (22) of the EBC system (20) to reduce tensile interfacial stresses in the EBC system.
摘要:
The present disclosure is directed to an improved system and method for repairing a bend in a turbine blade of a turbine of a gas turbine engine (10). The system includes an articulating guide configured to fit into an access port of the turbine. The articulating guide (114) includes a proximal end (116) and a distal end (118). The system also includes a repair tool (112) configured at the distal end (118) of the articulating guide (114). Further, the repair tool (112) is configured to fit over the turbine blade. Thus, the repair tool (112) is configured to bend the turbine blade (112) to an unbent position while the turbine blade (112) is secured within the turbine.
摘要:
The present disclosure relates to a ceramic or metallic component (300) including a first region (305) having a first porosity ranging between 1 and 30%. The component includes a second region (310) having a second porosity that is less than the first porosity. The component includes at least one graded transition (325) between the first and second regions (305,310).