公开(公告)号：US10688593B2

公开(公告)日：2020-06-23

申请号：US15626413

申请日：2017-06-19

Applicant: General Electric Company

Inventor： Felix Martin Gerhard Roerig ,  Donnell Eugene Crear ,  Juan Vicente Haro Gonzalez ,  Mikhail Pavlov ,  Dean Andrew Snelling, Jr.

IPC: B22F3/00 ,  B23K26/06 ,  B23K26/342 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y50/02 ,  B22F3/105 ,  B23K15/06 ,  B23K26/12 ,  B23K15/00 ,  B23K26/00 ,  B23K26/082 ,  B22F5/10 ,  B23K101/00 ,  B23K103/18 ,  B33Y10/00

Abstract: A component includes a body, and an interface in the body defining a first and second portion of the body made by different melting beam sources of a multiple melting beam source additive manufacturing system during a single build. The component also includes a channel extending through the body. The channel includes an interface-distant area on opposing sides of the interface, each interface-distant area having a first width. The channel also includes an enlarged width area fluidly communicative with the interface-distant areas and spanning the interface, the enlarged width area having a second width larger than the first width. Any misalignment of the melting beams at the interface is addressed by the enlarged width area, eliminating the problem of reduced cooling fluid flow in the channel.

公开(公告)号：US10596802B2

公开(公告)日：2020-03-24

申请号：US15608154

申请日：2017-05-30

Applicant: General Electric Company

Inventor： Mikhail Pavlov ,  Donnell Eugene Crear ,  Felix Martin Gerhard Roerig ,  Dean Andrew Snelling, Jr.

IPC: B29C67/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/393 ,  B29C64/268

Abstract: Additive manufacturing systems (AMS) are disclosed. The AMS may include a movable build platform, and a calibration system operably connected to the build platform. The calibration system may include a reflective element operably coupled to the build platform, a first calibration model positioned above and vertically offset from the reflective element, and a first camera substantially aligned with the first calibration model. The first camera may be visually aligned with the reflective element to capture a first reflective image of the first calibration model as reflected by the reflective element. The calibration system may also include at least one computing device operably connected to the build platform and the first camera, and configured to calibrate the build platform by: adjusting an actual inclination of the build platform in response to determining the first reflective image differs from a predetermined image of the first calibration model.

公开(公告)号：US11679551B2

公开(公告)日：2023-06-20

申请号：US16289076

申请日：2019-02-28

Applicant: General Electric Company

Inventor： Brian Scott McCarthy ,  Dean Andrew Snelling, Jr. ,  Thomas Adcock ,  Donnell Crear ,  Michael Evans Graham

IPC: B33Y50/02 ,  B29C64/153 ,  B29C64/393 ,  B29C64/268 ,  B22F10/20 ,  B22F12/90 ,  B22F10/31 ,  B33Y10/00 ,  B33Y30/00 ,  B22F12/45 ,  B22F12/49 ,  B22F12/60

CPC classification number: B33Y50/02 ,  B22F10/20 ,  B22F10/31 ,  B22F12/90 ,  B29C64/153 ,  B29C64/268 ,  B29C64/393 ,  B22F12/45 ,  B22F12/49 ,  B22F12/60 ,  B33Y10/00 ,  B33Y30/00

Abstract: A system for additive manufacturing machine energy beam alignment error compensation includes, a calibration table having x-y planar offsets to correct laser alignment errors representing energy beam positional offsets between beam-steering commanded energy beam locations and fiducial marks generated on a burn-paper, a recoater mechanism that distributes successive layers of powder, one or more sensors monitoring the powderbed surface proximal to the beam scan unit, and a processor unit configured to perform a method. The method including collecting sensor data representing height variations across at least a portion of the powderbed surface, deriving dimensional data from the collected data, analyzing the dimensional data to determine a distribution of differences between the powderbed surface and a reference plane containing the burn-paper when the fiducial marks were generated, and calculating z-axis calibration offset points for inclusion in the calibration table x-y planar offsets. A method and a non-transitory medium are also disclosed.

公开(公告)号：US10596803B2

公开(公告)日：2020-03-24

申请号：US15608231

申请日：2017-05-30

Applicant: General Electric Company

Inventor： Donnell Eugene Crear ,  Mikhail Pavlov ,  Felix Martin Gerhard Roerig ,  Dean Andrew Snelling, Jr.

IPC: G01S17/08 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/393 ,  B29C64/307 ,  B33Y10/00 ,  B29C64/153

Abstract: Additive manufacturing systems (AMS) are disclosed. The AMS may include a build plate positioned directly on a movable build platform, and a recoater device positioned above the build plate. The recoater device may include a blade. Additionally, the AMS may include a calibration system operably connected to the recoater device. The calibration system may include at least one measurement device coupled or positioned adjacent to the recoater device, and at least one computing device operably connected to the measurement device(s). The computing device(s) may be configured to calibrate the recoater device by adjusting a height of the blade of the recoater device relative to a reference surface of a component of the AMS in response to determining a pre-build distance between the blade of the recoater device and the reference surface differs from a desired distance. The pre-build distance may be determined using the measurement device(s).