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公开(公告)号：US11110692B2
公开(公告)日：2021-09-07
申请号：US16137897
申请日：2018-09-21
Applicant: Rolls-Royce Corporation
Inventor： Scott Nelson , Raymond Ruiwen Xu , Sean E. Landwehr , Daniel Kent Vetters , Samantha Tatar
Abstract: In some examples, a braze material includes a first set of particles, a second set of particles, and a polymeric binder. The first set of particles includes a braze powder, where the braze powder comprises an Si-containing alloy. The first set of particles defines an average or median particle diameter between about 1 μm and about 40 μm. The second set of particles includes at least one of SiC or a transition metal carbide, where the second set of particles has a multimodal particle size distribution.
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公开(公告)号：US20210220935A1
公开(公告)日：2021-07-22
申请号：US16744345
申请日：2020-01-16
Inventor： Scott Nelson , Raymond Xu , Stephen Liu , Juan Carlos Madeni , Brian Paul Rodgers
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.
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公开(公告)号：US11027351B2
公开(公告)日：2021-06-08
申请号：US16402898
申请日：2019-05-03
Applicant: Rolls-Royce Corporation
Inventor： Sean E. Landwehr , Scott Nelson , Jacque Sue Bader
Abstract: The disclosure describes techniques for joining a first part including a ceramic or a CMC and a second part including a ceramic or a CMC using brazing. A technique may include positioning a filler material in a joint region between the first and second parts and a metal or alloy on a bulk surface of the filler material. The metal or alloy may be locally heated to melt the metal or alloy, which may infiltrate the filler material. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts. Another technique may include depositing a powder that includes the filler material and the metal or alloy in the joint region. Substantially simultaneously with depositing the powder, the powder may be locally heated. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts.
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74.发明申请公开(公告)号：US20210146604A1
公开(公告)日：2021-05-20
申请号：US17097497
申请日：2020-11-13
Inventor： Quinlan Yee Shuck , Scott Nelson , Raymond Ruiwen Xu , Brandon David Ribic , Matthew R. Gold
IPC: B29C64/118 , B29C64/25 , B29C64/245
Abstract: An additively manufactured component that includes a tool with a region having a plurality of overlying metal layers each derived from a metal powder filament. The region has a predetermined yield point selected based on an operation to be performed with the tool.
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公开(公告)号：US20210146603A1
公开(公告)日：2021-05-20
申请号：US17096112
申请日：2020-11-12
Inventor： Evan Raeker , Quinlan Yee Shuck , Scott Nelson , Raymond Ruiwen Xu , Matthew R. Gold
IPC: B29C64/118 , B33Y30/00 , B33Y70/10 , B33Y10/00 , B29C64/393 , B33Y50/02
Abstract: In general, techniques are described for a patterned filament for fused filament fabrication. An additive manufacturing system may include a substrate defining a major surface, a filament delivery device, and a computing device. The computing device may be configured to control the filament delivery device to deposit a filament on the substrate, the filament including a primary material and a first binder, where the primary material distributed in a pattern having a first cross sectional geometry that differs from a second cross sectional geometry of the filament, and the binder is configured to be substantially removed from the filament.
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Patent Agency Ranking
公开(公告)号：US10364195B2
公开(公告)日：2019-07-30
申请号：US14720438
申请日：2015-05-22
Inventor： Sean E. Landwehr , Scott Nelson , Jeremy Lee Watts , Gregory Eugene Hilmas , William Gene Fahrenholtz , Derek Scott King
Abstract: In some examples, a technique may include positioning a first part comprising a ceramic or ceramic matrix composite and a second part comprising a ceramic or a CMC adjacent to each other to define a joint region at the interface of the first part and the second part. In some examples, the joint region may be heated using at least one of a laser or a plasma arc source to heat the joint region to an elevated temperature. The first and second parts may be pressed together and cooled to join the first and second parts at the joint region. In other examples, a solid braze material including a filler material and a metal or alloy may be delivered to the joint region and locally heated to cause a constituent of the filler material and a constituent of the metal or alloy to react. When reacted, the constituents may form a solid material, which may join the first and second parts.
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公开(公告)号：US20190224911A1
公开(公告)日：2019-07-25
申请号：US16254978
申请日：2019-01-23
Inventor： Quinlan Yee Shuck , Scott Nelson , Brandon David Ribic , Matthew R. Gold
IPC: B29C64/135 , B29C64/118 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: An additive manufacturing technique may include forming, on a structured surface of a substrate, a layer of material using an additive manufacturing technique. The structured surface of the substrate includes at least one feature having a smallest dimension or a smallest radius of curvature smaller than a base resolution of the additive manufacturing technique. The layer of material substantially reproduces a complementary shape that is complementary to the at least one feature. The method may further include forming, on the layer of material, at least one additional layer of material to form an additively manufactured component including the complementary shape.
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公开(公告)号：US10335877B2
公开(公告)日：2019-07-02
申请号：US15002182
申请日：2016-01-20
Applicant: Rolls-Royce Corporation
Inventor： Andrew James Ritchey , Sean E. Landwehr , Scott Nelson , Sungbo Shim
IPC: B23K1/00 , B23K1/19 , B23K35/02 , B23K35/24 , B23K1/005 , B23K1/20 , B23K103/18 , B23K103/00
Abstract: A method may include positioning a multilayer braze tape at a joint between a first part comprising a ceramic or CMC and a second part comprising at least one of a ceramic, a CMC, a metal, or an alloy. The multilayer braze tape may include at least one layer comprising a silicon-containing braze material and at least one layer comprising a reinforcement material. The method also may include applying pressure to compress the multilayer braze tape between the first part and the second part, and heating the multilayer braze tape to melt the silicon-containing braze material and join the first part and the second part.
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公开(公告)号：US10293424B2
公开(公告)日：2019-05-21
申请号：US15144367
申请日：2016-05-02
Applicant: Rolls-Royce Corporation
Inventor： Sean E. Landwehr , Scott Nelson , Jacque Sue Bader
IPC: B23K31/02 , B23K1/19 , B23K1/005 , B23K35/02 , B23K35/30 , B23K35/36 , B23K1/002 , B23K3/06 , B23K103/00
Abstract: The disclosure describes techniques for joining a first part including a ceramic or a CMC and a second part including a ceramic or a CMC using brazing. A technique may include positioning a filler material in a joint region between the first and second parts and a metal or alloy on a bulk surface of the filler material. The metal or alloy may be locally heated to melt the metal or alloy, which may infiltrate the filler material. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts. Another technique may include depositing a powder that includes the filler material and the metal or alloy in the joint region. Substantially simultaneously with depositing the powder, the powder may be locally heated. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts.
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公开(公告)号：US20160023957A1
公开(公告)日：2016-01-28
申请号：US14720438
申请日：2015-05-22
Inventor： Sean E. Landwehr , Scott Nelson , Jeremy Lee Watts , Gregory Eugene Hilmas , William Gene Fahrenholtz , Derek Scott King
CPC classification number: C04B37/003 , B23K1/0018 , B23K1/0056 , B23K1/19 , B23K1/20 , C04B2235/6562 , C04B2235/6565 , C04B2237/365 , C04B2237/38 , C04B2237/708 , C04B2237/72
Abstract: In some examples, a technique may include positioning a first part comprising a ceramic or ceramic matrix composite and a second part comprising a ceramic or a CMC adjacent to each other to define a joint region at the interface of the first part and the second part. In some examples, the joint region may be heated using at least one of a laser or a plasma arc source to heat the joint region to an elevated temperature. The first and second parts may be pressed together and cooled to join the first and second parts at the joint region. In other examples, a solid braze material including a filler material and a metal or alloy may be delivered to the joint region and locally heated to cause a constituent of the filler material and a constituent of the metal or alloy to react. When reacted, the constituents may form a solid material, which may join the first and second parts.
Abstract translation: 在一些示例中，一种技术可以包括定位包括陶瓷或陶瓷基质复合材料的第一部分和包括彼此相邻的陶瓷或CMC的第二部分，以限定第一部分和第二部分的界面处的接合区域。 在一些示例中，可以使用激光或等离子体电弧源中的至少一种来加热接合区域，以将接合区域加热到升高的温度。 第一和第二部分可以被压在一起并冷却以在接合区域处连接第一和第二部分。 在其他实例中，包括填充材料和金属或合金的固体钎焊材料可以被输送到接合区域并局部加热以使填料的组分和金属或合金的组分反应。 当反应时，组分可以形成固体材料，其可以连接第一和第二部分。
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