公开(公告)号：US11718032B2

公开(公告)日：2023-08-08

申请号：US16527385

申请日：2019-07-31

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B29C64/314 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/20 ,  B29C64/393 ,  C09D11/101 ,  C09D11/102

CPC classification number: B29C64/314 ,  B29C64/153 ,  B29C64/20 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  C09D11/101 ,  C09D11/102

Abstract: Illustrative examples of forming material suitable for use in additive manufacturing processes includes operations of: exposing a first polymer powder to a first plasma, such that an amine-functionalized powder is formed; exposing a second polymer powder to a second plasma, such that an epoxide-functionalized powder is formed; and combining the amine-functionalized powder and the epoxide-functionalized powder to form a precursor material. The precursor material is subsequently heated in an additive manufacturing process to form a structure, where heating of the precursor material causes covalent chemical bonds to form between the first polymer powder and the second polymer powder.

公开(公告)号：US20230202101A1

公开(公告)日：2023-06-29

申请号：US18173188

申请日：2023-02-23

Applicant: The Boeing Company

Inventor： Nishant Kumar SINHA ,  Om Prakash

IPC: B29C64/153 ,  B29C64/314 ,  B22F1/145 ,  B22F1/102

CPC classification number: B29C64/153 ,  B29C64/314 ,  B22F1/145 ,  B22F1/102 ,  B33Y40/00

Abstract: An additive manufacturing powder particle including a surface and at least one functional group formed on the surface, wherein the at least one functional group increases laser energy absorption of the additive manufacturing powder particle. The additive manufacturing particle is treated with plasma radiation to form hydroxyl functional groups on a surface of the additive manufacturing powder particle, where the hydroxyl functional groups have a molecular vibrational frequency corresponding to a laser wavenumber range of laser energy of an additive manufacturing process, and where the plasma radiation treating the additive manufacturing powder particles depends on the laser energy of the additive manufacturing process. Treating the additive manufacturing powder particle with the plasma radiation increases laser energy absorption of the additive manufacturing powder particle when the additive manufacturing particle is exposed to the laser energy, produced by a carbon dioxide laser, of the additive manufacturing process.

公开(公告)号：US11648729B2

公开(公告)日：2023-05-16

申请号：US16429845

申请日：2019-06-03

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B29C64/153 ,  B29C64/314 ,  B33Y40/00 ,  B33Y70/00 ,  B33Y10/00

CPC classification number: B29C64/153 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y70/00

Abstract: A method for treating additive manufacturing powder particles is provided. The method includes exposing the additive manufacturing powder particles to plasma radiation, where the plasma radiation forms functional groups, on surfaces of the additive manufacturing powder particles, having molecular bonds that vibrate in response to irradiation by laser energy of an additive manufacturing process, and moving the additive manufacturing powder particles to expose the additive manufacturing powder particles to the plasma radiation.

公开(公告)号：US11479026B2

公开(公告)日：2022-10-25

申请号：US16537484

申请日：2019-08-09

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B32B27/12 ,  B64F5/10 ,  B32B5/02

Abstract: Illustrative examples of forming and using suitably adapted materials for improving interface strength between thermoset-thermoplastic joined parts includes exposure of a thermoplastic substrate to a plasma to form an amine-functionalized substrate having amine chemical moieties disposed on a first surface. The first surface of the thermoplastic substrate is positioned adjacent to and contacts a second surface of a thermoset substrate to form a workpiece. The thermoset substrate includes epoxide chemical moieties on and within material forming the thermoset substrate. The workpiece is subsequently heated to form a structure, where heating of the workpiece causes covalent chemical bonds to form between the plasma-treated first surface of the thermoplastic substrate and the second surface of the thermoset substrate. Thereafter, additional thermoplastic components can be fusion bonded to a surface of the thermoplastic substrate opposite the first surface—thereby providing improved attachment of additional thermoplastic components to the thermoset substrate.

公开(公告)号：US11091653B2

公开(公告)日：2021-08-17

申请号：US16534493

申请日：2019-08-07

Applicant: The Boeing Company

Inventor： Vijaykumar S. Ijeri ,  Om Prakash ,  Stephen P. Gaydos ,  Raghavan Subasri ,  Kalidindi Ramachandra Soma Raju ,  Dendi Sreenivas Reddy

IPC: C09D5/08 ,  C08G77/58 ,  C09D183/14 ,  C23C18/12 ,  B05D3/02 ,  B05D7/14 ,  B05D7/00 ,  B05D3/06

Abstract: An alkoxysilane is contacted with water and an inorganic acid to form a first composition. A zirconium alkoxide is contacted with an organic acid to form a second composition. One or more alkoxysilanes and an organic acid are contacted with a mixture of the first and second compositions to form a sol-gel composition, to which a photoinitiator is added. The sol-gel composition has a ratio of a number of moles of silicon to a number of moles of zirconium (nSi/nZr) ranging from about 2 to about 10. The sol-gel composition is applied on a substrate (e.g., an aluminum alloy substrate) multiple times to form multiple sol-gel layers, and at least one of the sol-gel layers is cured by UV radiation. The multiple sol-gel layers are then thermally cured.

公开(公告)号：US10814555B2

公开(公告)日：2020-10-27

申请号：US16146323

申请日：2018-09-28

Applicant: The Boeing Company

Inventor： Om Prakash ,  Araveti Gupta

IPC: B29C64/343 ,  B33Y30/00 ,  B29C64/214 ,  B33Y50/02 ,  B29C64/393 ,  B33Y40/00 ,  B29C64/336 ,  B29C64/245 ,  B29C64/153 ,  B29C64/165

Abstract: An additive manufacturing system including a build plate, and at least one powder reservoir configured to store and deposit powder onto the build plate, the at least one powder reservoir including a powder dispensing aperture having a variable size. The powder dispensing unit includes a base member, and the least one powder reservoir coupled to the base member.

公开(公告)号：US10767274B2

公开(公告)日：2020-09-08

申请号：US15680326

申请日：2017-08-18

Applicant: THE BOEING COMPANY

Inventor： Stephen P. Gaydos ,  Vijaykumar S. Ijeri ,  Om Prakash ,  Trilochan Mishra ,  Raghuvir Singh ,  Shashi Kant Tiwari

IPC: C25D3/56 ,  C25D3/24 ,  C25D5/12 ,  C25D3/54 ,  C25D5/18 ,  B22F3/105 ,  C25D5/10

Abstract: The present disclosure provides electrolyte solutions for electrodeposition of zinc-iron alloys, methods of forming electrolyte solutions, and methods of electrodepositing zinc-iron alloys. An electrolyte solution for electroplating can include an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine with a metal salt. An electrolyte solution can be formed by dissolving an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine in water or an aqueous solution. Electrodepositing zinc-iron alloys on a substrate can include introducing a cathode and an anode into an electrolyte solution comprising an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine. Electrodepositing can further include passing a current between the cathode and the anode through the electrolyte solution to deposit zinc and iron onto the cathode.

公开(公告)号：US10726824B2

公开(公告)日：2020-07-28

申请号：US15719854

申请日：2017-09-29

Applicant: THE BOEING COMPANY

Inventor： Om Prakash ,  Shantanu Bhattacharya ,  Sanjay Kumar ,  Pulak Bhushan

IPC: G10K11/172 ,  B32B7/12 ,  B32B25/14 ,  B32B3/12 ,  B32B15/088 ,  B32B25/08 ,  B32B15/04 ,  B32B25/12 ,  B32B27/34 ,  B32B15/06 ,  B32B27/08 ,  B32B3/26 ,  B32B7/02 ,  B32B25/04 ,  B32B37/12 ,  B64C1/40 ,  B64C1/00

Abstract: A composite panel assembly includes first and second elastic membranes and a structure. The structure has a first side mounted to the first elastic membrane and a second side mounted to the second elastic membrane. The structure includes a first honeycomb layer, a second honeycomb layer, and a plurality of necks. The first honeycomb layer has partition walls defining resonance cavities that are covered by the first elastic membrane along the first side. The second honeycomb layer has partition walls defining resonance cavities that are covered by the second elastic membrane along the second side. The necks are disposed between and connect the first and second honeycomb layers. Each neck defines a channel that is fluidly connected to a corresponding one of the resonance cavities of the first honeycomb layer and a corresponding one of the resonance cavities of the second honeycomb layer.

公开(公告)号：US10428226B2

公开(公告)日：2019-10-01

申请号：US15231617

申请日：2016-08-08

Applicant: The Boeing Company

Inventor： Vijaykumar S. Ijeri ,  Om Prakash ,  Stephen P. Gaydos ,  Raghavan Subasri ,  Kalidindi Ramachandra Soma Raju ,  Dendi Sreenivas Reddy

IPC: C09D5/08 ,  C23C18/12 ,  C08G77/58 ,  C09D183/14 ,  B05D3/06 ,  B05D7/14 ,  B05D3/02 ,  B05D7/00

Abstract: An alkoxysilane is contacted with water and an inorganic acid to form a first composition. A zirconium alkoxide is contacted with an organic acid to form a second composition. One or more alkoxysilanes and an organic acid are contacted with a mixture of the first and second compositions to form a sol-gel composition, to which a photoinitiator is added. The sol-gel composition has a ratio of a number of moles of silicon to a number of moles of zirconium (nSi/nZr) ranging from about 2 to about 10. The sol-gel composition is applied on a substrate (e.g., an aluminum alloy substrate) multiple times to form multiple sol-gel layers, and at least one of the sol-gel layers is cured by UV radiation. The multiple sol-gel layers are then thermally cured.

公开(公告)号：US10421869B2

公开(公告)日：2019-09-24

申请号：US15431506

申请日：2017-02-13

Applicant: The Boeing Company

Inventor： Vijaykumar S. Ijeri ,  Om Prakash ,  Stephen P. Gaydos ,  Raghavan Subasri ,  Kalidindi Ramachandra Soma Raju ,  Dendi Sreenivas Reddy

IPC: C09D5/08 ,  C09D7/65 ,  C09D7/80 ,  C09D5/10 ,  C09D183/08 ,  C23C18/12 ,  C08K3/18 ,  C08K3/28 ,  C08K3/32

Abstract: A layered tetravalent metal phosphate composition (e.g., a layered zirconium phosphate composition) and a first corrosion inhibitor (e.g., cerium (III), a vanadate, a molybdate, a tungstate, a manganous, a manganate, a permanganate, an aluminate, a phosphonate, a thiazole, a triazole, and/or an imidazole) is dispersed in an aqueous solution and stirred to form a first solution. A precipitate of the first solution is collected and washed to form a first corrosion inhibiting material (CIM), which includes the first corrosion inhibitor intercalated in the layered tetravalent metal phosphate composition. The first CIM is added to a first sol-gel composition to form a first CIM-containing sol-gel composition. The first CIM-containing sol-gel composition is applied on a substrate to form a CIM-containing sol-gel layer, cured by UV radiation, and thermally cured to form a corrosion-resistant coating. One or more additional sol-gel composition may be applied on the substrate.