公开(公告)号：US11571762B2

公开(公告)日：2023-02-07

申请号：US16684921

申请日：2019-11-15

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Matthew Gold ,  Greg Lopshire ,  Raymond Xu ,  Carl Russo

IPC: B23K1/00 ,  B23K37/00 ,  B23K35/02

Abstract: A printing method for selectively depositing braze powders on a surface comprises extruding a filament from a nozzle moving relative to a surface, where the filament comprises a flowable carrier mixed with a braze powder. As the nozzle moves, the filament is deposited on the surface in a predetermined pattern defined by the motion of the nozzle relative to the surface; thus, the braze powders are deposited at one or more predetermined locations on the surface.

公开(公告)号：US11407057B2

公开(公告)日：2022-08-09

申请号：US16870750

申请日：2020-05-08

Applicant: Rolls-Royce Corporation

Inventor： Joseph P. Henderkott ,  Timothy Fuesting ,  Raymond Xu

IPC: B23K11/25 ,  B23K11/30 ,  B23K11/00 ,  F23R3/00 ,  B23K11/11 ,  B23K11/24 ,  B23K101/00

Abstract: A bonding system is used for bonding a cover sheet to a core to form or repair a dual wall structure. The bonding system includes a plurality of bonding probes and controller circuitry. The bonding probes include a three dimensional (3D) contoured tip configured to align with a predetermined area of a 3D contoured cover sheet of a dual wall structure. The controller circuitry comprises processor circuitry and sensor circuitry. The sensor circuitry provides a location of an area of the 3D contoured cover sheet for bonding. The processor circuitry identifies a bonding probe having a contacting area that aligns with the 3D contour of the cover sheet in the location provided by the sensor circuitry.

公开(公告)号：US10947162B2

公开(公告)日：2021-03-16

申请号：US15951707

申请日：2018-04-12

Applicant: Rolls-Royce Corporation ,  Trustees of the Colorado School of Mines

Inventor： Scott Nelson ,  Raymond Xu ,  Sean Landwehr ,  Juan Wei ,  Stephen Liu ,  Juan Carlos Madeni

IPC: B23K35/00 ,  C04B37/00 ,  B23K35/30

Abstract: A braze alloy for joining or repairing ceramic matrix composite (CMC) components comprises a braze composition including silicon at a concentration from about 48 at. % to about 66 at. %, titanium at a concentration from about 1 at. % to about 35 at. %, and an additional element selected from aluminum, cobalt, vanadium, nickel, and chromium. The braze composition comprises a melting temperature of less than 1300° C.

公开(公告)号：US11577333B2

公开(公告)日：2023-02-14

申请号：US16744345

申请日：2020-01-16

Applicant: Rolls-Royce Corporation ,  Trustees of the Colorado School of Mines

Inventor： Scott Nelson ,  Raymond Xu ,  Stephen Liu ,  Juan Carlos Madeni ,  Brian Paul Rodgers

IPC: B23K1/005 ,  B23K35/32 ,  B23K35/30 ,  B23K1/00 ,  C04B35/80 ,  B23K26/324 ,  B23K35/02 ,  B23K103/00

Abstract: A method of connecting two CMC substrates that includes providing two substrates; placing one substrate approximate to the other substrate, such that at least a portion of the two substrates overlap and define a brazing area; placing a brazing material approximate the brazing area; defining a primary raster pattern that encompasses the brazing area and a portion of the two substrates outside the brazing area; defining a secondary raster pattern that encompasses the brazing area; allowing a laser to scan the primary raster pattern to preheat the brazing area to a temperature below the brazing material's melting point; allowing the laser to scan the secondary raster pattern to heat the brazing area to a temperature that is above the brazing material's melting point; melting and allowing the brazing material to flow within the brazing area; and cooling the brazing area to form a brazed joint connecting the two substrates.

公开(公告)号：US20210276119A1

公开(公告)日：2021-09-09

申请号：US16870750

申请日：2020-05-08

Applicant: Rolls-Royce Corporation

Inventor： Joseph P. Henderkott ,  Timothy Fuesting ,  Raymond Xu

IPC: B23K11/25 ,  B23K11/00 ,  B23K11/24 ,  B23K11/30 ,  B23K11/11

Abstract: A bonding system is used for bonding a cover sheet to a core to form or repair a dual wall structure. The bonding system includes a plurality of bonding probes and controller circuitry. The bonding probes include a three dimensional (3D) contoured tip configured to align with a predetermined area of a 3D contoured cover sheet of a dual wall structure. The controller circuitry comprises processor circuitry and sensor circuitry. The sensor circuitry provides a location of an area of the 3D contoured cover sheet for bonding. The processor circuitry identifies a bonding probe having a contacting area that aligns with the 3D contour of the cover sheet in the location provided by the sensor circuitry.

公开(公告)号：US20210146459A1

公开(公告)日：2021-05-20

申请号：US16684921

申请日：2019-11-15

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Matthew Gold ,  Greg Lopshire ,  Raymond Xu ,  Carl Russo

IPC: B23K1/00 ,  B23K35/02

Abstract: A printing method for selectively depositing braze powders on a surface comprises extruding a filament from a nozzle moving relative to a surface, where the filament comprises a flowable carrier mixed with a braze powder. As the nozzle moves, the filament is deposited on the surface in a predetermined pattern defined by the motion of the nozzle relative to the surface; thus, the braze powders are deposited at one or more predetermined locations on the surface.

公开(公告)号：US20190031570A1

公开(公告)日：2019-01-31

申请号：US15951707

申请日：2018-04-12

Applicant: Rolls-Royce Corporation ,  Trustees of the Colorado School of Mines

Inventor： Scott Nelson ,  Raymond Xu ,  Sean Landwehr ,  Juan Wei ,  Stephen Liu ,  Juan Carlos Madeni

IPC: C04B37/00 ,  B23K35/30

Abstract: A braze alloy for joining or repairing ceramic matrix composite (CMC) components comprises a braze composition including silicon at a concentration from about 48 at. % to about 66 at. %, titanium at a concentration from about 1 at. % to about 35 at. %, and an additional element selected from aluminum, cobalt, vanadium, nickel, and chromium. The braze composition comprises a melting temperature of less than 1300° C.

公开(公告)号：US11752580B2

公开(公告)日：2023-09-12

申请号：US17853216

申请日：2022-06-29

Applicant: Rolls-Royce Corporation

Inventor： Joseph P. Henderkott ,  Timothy Fuesting ,  Raymond Xu

IPC: B23P15/04 ,  F02C7/00

CPC classification number: B23P15/04 ,  F02C7/00 ,  F05D2220/32 ,  F05D2230/232 ,  F05D2240/12 ,  F05D2240/30

Abstract: A system is for bonding a cover sheet to a core to form or repair a dual wall structure. The system includes a cover sheet probe and an inner pedestal probe. A three dimensional contoured tip of the cover sheet probe abuts against a three dimensional contoured outer surface of the cover sheet opposite a pedestal of the core. The pedestal abuts the inner surface of the cover sheet. The inner pedestal probe may be coupled to the core to create a conductive electrical path from the cover sheet probe through at least part of the structure. A flow of electric power is controlled and supplied to the cover sheet probe to heat a junction between the area of the cover sheet abutting the pedestal and the pedestal. A heated area is created in the junction and fixedly couples the coversheet and the pedestal.

公开(公告)号：US20210276118A1

公开(公告)日：2021-09-09

申请号：US16870762

申请日：2020-05-08

Applicant: Rolls-Royce Corporation

Inventor： Joseph P. Henderkott ,  Timothy Fuesting ,  Raymond Xu

IPC: B23K11/00 ,  B23K11/30

Abstract: A bonding probe is used for bonding a cover sheet to a core to form or repair a dual wall structure. The bonding probe includes a body, an attachment end at a distal end of the body, a head at an opposite end of the body, a tip extending from the head, and a cooling passageway. The attachment end couples the body to a resistance welder. The tip extends to form a proximate end of the body. The tip includes a contacting area having a predetermined three dimensional contoured surface. The contacting area aligns with a predetermined area of a three dimensional outer surface of a cover sheet of a dual walled structure. The cooling passageway provides a passageway for a flow of cooling fluid. The cooling passageway extends through the head, and into the tip.

公开(公告)号：US11717907B2

公开(公告)日：2023-08-08

申请号：US16870762

申请日：2020-05-08

Applicant: Rolls-Royce Corporation

Inventor： Joseph P. Henderkott ,  Timothy Fuesting ,  Raymond Xu

IPC: B23K11/00 ,  B23K11/30 ,  B23K101/04 ,  F01D5/14 ,  B23K101/00

CPC classification number: B23K11/002 ,  B23K11/3054 ,  B23K11/3081 ,  B23K2101/001 ,  B23K2101/04 ,  F01D5/14 ,  F05D2220/32 ,  F05D2230/30

Abstract: A bonding probe is used for bonding a cover sheet to a core to form or repair a dual wall structure. The bonding probe includes a body, an attachment end at a distal end of the body, a head at an opposite end of the body, a tip extending from the head, and a cooling passageway. The attachment end couples the body to a resistance welder. The tip extends to form a proximate end of the body. The tip includes a contacting area having a predetermined three dimensional contoured surface. The contacting area aligns with a predetermined area of a three dimensional outer surface of a cover sheet of a dual walled structure. The cooling passageway provides a passageway for a flow of cooling fluid. The cooling passageway extends through the head, and into the tip.