公开(公告)号：US11312082B2

公开(公告)日：2022-04-26

申请号：US16736411

申请日：2020-01-07

Applicant: The Boeing Company

Inventor： Megha Sahu ,  Om Prakash

IPC: B29C64/393 ,  B33Y40/20 ,  B33Y50/02 ,  C23C14/54 ,  C23C14/04 ,  C23C14/20 ,  C23C14/34 ,  B33Y30/00

Abstract: A hybrid additive manufacturing system a build chamber, a polymer additive manufacturing system housed within the build chamber and a physical vapor deposition (PVD) system housed within the build chamber. A controller is configured to issue control signals to the polymer additive manufacturing system and PVD system for layered deposition of polymer and PVD layers in a multilayer part.

公开(公告)号：US20210269608A1

公开(公告)日：2021-09-02

申请号：US16806767

申请日：2020-03-02

Applicant: The Boeing Company

Inventor： Megha Sahu ,  Om Prakash ,  Shantanu Bhattacharya ,  Poonam Sundriyal

IPC: C08J7/043 ,  B05D3/14 ,  C08J5/12

Abstract: The present disclosure provides a method of enhancing the shelf-life of an activated surface of a thermoplastic material, including: coating at least a portion of a surface of the thermoplastic material with at least one adhesion promoter to provide a coated surface; and treating the coated surface with plasma to provide the activated surface of the thermoplastic material; wherein the activated surface has a contact angle in the range of from about 0 to about 40°; and wherein the presence of the at least one adhesion promoter is effective to maintain the contact angle in the range of from about 0 to about 40° for a time of about 10 days or greater.

公开(公告)号：US11066752B2

公开(公告)日：2021-07-20

申请号：US15971469

申请日：2018-05-04

Applicant: THE BOEING COMPANY

Inventor： Stephen P. Gaydos ,  Vijaykumar S. Ijeri ,  Om Prakash ,  Shashi Kant Tiwari ,  Raghuvir Singh ,  Sharma Paswan ,  Lokesh C. Pathak

IPC: C25D3/56 ,  C25D5/10 ,  B32B15/01

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

公开(公告)号：US11027485B2

公开(公告)日：2021-06-08

申请号：US15827781

申请日：2017-11-30

Applicant: The Boeing Company

Inventor： Om Prakash ,  Nishant K. Sinha ,  Vijaykumar S. Ijeri

IPC: B29C64/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B23K26/00 ,  B29C64/147 ,  B29C64/393 ,  B29C64/268 ,  B23K26/21 ,  B23K26/364 ,  B33Y50/02 ,  B29C64/282 ,  B29K101/12 ,  B29K105/00

Abstract: A method of fabricating a part includes stacking sheets of fusible material to form a stack. The method also includes directing a laser beam through at least one sheet of the stack. The method also includes transferring energy from the laser beam to multiple locations on at least one interface between adjacent sheets of the stack, according to a predetermined pattern corresponding with a design of the part, to form corresponding multiple molten regions. The molten regions are conjoined together to form a fused portion of the adjacent sheets. The fused portion of the adjacent sheets defines the part.

公开(公告)号：US10974497B2

公开(公告)日：2021-04-13

申请号：US15614476

申请日：2017-06-05

Applicant: The Boeing Company

Inventor： Om Prakash

IPC: B33Y50/02 ,  B33Y30/00 ,  B29C64/245 ,  B29C64/393 ,  B29C64/295 ,  B29C64/386 ,  B33Y10/00 ,  B28B1/00

Abstract: Various additive manufacturing systems and methods are described. In one example, a base is configured to receive deposition material from an additive manufacturing apparatus. The base includes a plurality of regions configured to be individually temperature controlled to affect heat transfer characteristics of at least a portion of the received deposition material. A temperature control system is coupled with the regions and configured to adjust an associated temperature of each of the regions.

公开(公告)号：US10926460B2

公开(公告)日：2021-02-23

申请号：US16146389

申请日：2018-09-28

Applicant: The Boeing Company

Inventor： Om Prakash ,  Megha Sahu

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29C64/106 ,  B29C64/20 ,  B22F1/00 ,  B22F3/11 ,  B29C64/245 ,  B22F3/105 ,  B22F3/00 ,  B33Y70/00

Abstract: A method of additive manufacturing is provided. The method includes depositing a layer of base material from which an additively manufactured part is produced. The method also includes depositing a slurry onto the layer of base material, where the slurry includes a solvent, particles of a structural material, and a reinforcing agent.

公开(公告)号：US20210039330A1

公开(公告)日：2021-02-11

申请号：US16537471

申请日：2019-08-09

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B29C65/00

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：US20210031442A1

公开(公告)日：2021-02-04

申请号：US16527433

申请日：2019-07-31

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B29C64/147 ,  B29C64/268 ,  B29C64/393 ,  B29C64/314 ,  B29B13/08

Abstract: Illustrative examples of forming and using suitably adapted material in an additive manufacturing process includes operations of: exposing a first polymer sheet to a first plasma, such that an amine-functionalized sheet surface is formed; exposing a second polymer sheet to a second plasma, such that an epoxide-functionalized sheet surface is formed; and combining the amine-functionalized sheet and the epoxide-functionalized sheet, such that the amine-functionalized sheet surface contacts the epoxide-functionalized sheet surface. 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 polymer sheet and the plasma-treaded second polymer sheet.

公开(公告)号：US10894610B2

公开(公告)日：2021-01-19

申请号：US15614557

申请日：2017-06-05

Applicant: The Boeing Company

Inventor： Om Prakash ,  Kanakasabapathi Subramanian ,  Shantanu Pal ,  Radhakrishnan Anbarasan

IPC: B64D45/02 ,  G01W1/16 ,  H02H9/06 ,  H02H1/00

Abstract: A lightning protection apparatus and related methods are described. The lightning protection apparatus includes a housing that defines a cavity, a gas generating device disposed within the housing, and a signal acquisition device. The housing is coupled to an aircraft. The signal acquisition device is configured to detect a lightning arc and responsively activate the gas generating device to emit a stream of gas to suppress the lightning arc.

公开(公告)号：US10814552B2

公开(公告)日：2020-10-27

申请号：US16146352

申请日：2018-09-28

Applicant: The Boeing Company

Inventor： Om Prakash ,  Araveti Gupta

IPC: B29C64/214 ,  B29C64/336 ,  B29C64/245 ,  B29C64/255 ,  B29C64/307 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B29C64/165 ,  B33Y70/00

Abstract: An additive manufacturing system including a build plate, at least one recoater blade configured to spread powder onto the build plate, and at least one vibration mechanism coupled to one or more of the build plate and the at least one recoater blade. A controller coupled to the at least one vibration mechanism is configured to control actuation of the at least one vibration mechanism so that vibratory pulses are induced within the powder to effect compaction of the powder on the build plate.