公开(公告)号：US20180345378A1

公开(公告)日：2018-12-06

申请号：US15609747

申请日：2017-05-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brandon HOLFORD ,  Jeffrey VAUGHT ,  MacKenzie Ryan REDDING ,  Justin MAMRAK

IPC: B22F3/24 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/105 ,  B33Y40/00

Abstract: A method for large-scale, real-time simultaneous additive and subtractive manufacturing is described. The apparatus used in the method includes a build unit and a machining mechanism that are attached to a positioning mechanism, a rotating platform, and a rotary encoder attached to the rotating platform. The method involves rotating the build platform; determining the rotational speed; growing the object and the build wall through repetitive cycles of moving the build unit(s) over and substantially parallel to multiple build areas within the build platform to deposit a layer of powder at each build area, leveling the powder, and irradiating the powder to form a fused additive layer at each build area; machining the object being manufactured; and cutting and removing the build wall. The irradiation parameters are calibrated based on the determined rotational speed.

公开(公告)号：US20180345379A1

公开(公告)日：2018-12-06

申请号：US15609909

申请日：2017-05-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brandon HOLFORD ,  Jeffrey VAUGHT ,  MacKenzie Ryan REDDING ,  Justin MAMRAK

IPC: B22F3/24 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/105 ,  B33Y40/00

Abstract: An apparatus for large-scale, real-time simultaneous additive and subtractive manufacturing is described. The build unit(s) of the apparatus includes a powder delivery mechanism, a powder recoating mechanism and an irradiation beam directing mechanism. The build unit and the machining mechanism are attached to a positioning mechanism that provides them with movement. The build platform of the apparatus is rotating and preferably vertically stationary. Embodiments of the build unit that further includes a gas-flow mechanism and the build platform having a dynamically grown wall are also described. A manufacturing method using the apparatus involves rotating the build platform; repetitive cycles of moving the build unit(s) to deposit a powder and irradiating the powder to form a fused additive layer; and machining the object being manufactured.

公开(公告)号：US20180345600A1

公开(公告)日：2018-12-06

申请号：US15610113

申请日：2017-05-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brandon HOLFORD ,  Jeffrey VAUGHT ,  MacKenzie Ryan REDDING ,  Justin MAMRAK

IPC: B29C67/00 ,  G05B19/18

Abstract: A method for large-scale, real-time simultaneous additive and subtractive manufacturing is described. The apparatus used in the method includes one or more build units and a machining mechanism that are attached to a positioning mechanism, and a rotating build platform. The method involves at least rotating the build platform; repetitive cycles of moving the build unit(s) to deposit powder and irradiating at least a selected portion of the powder to form at least one fused layer to form at least one object and a build wall that retains unfused powder about the object; and removing the build wall by rotational machining.

公开(公告)号：US20180345373A1

公开(公告)日：2018-12-06

申请号：US15610214

申请日：2017-05-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brandon HOLFORD ,  Jeffrey VAUGHT ,  MacKenzie Ryan REDDING ,  Justin MAMRAK

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y40/00 ,  B22F5/00 ,  B22F5/04 ,  B23K15/00 ,  B23K15/02 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/70 ,  B23K26/08 ,  F01D25/24 ,  F23R3/00

Abstract: A method for large-scale, real-time simultaneous additive and subtractive manufacturing is described. The apparatus used in the method includes a build unit and a machining mechanism that are attached to a positioning mechanism, a rotating platform, and a rotary encoder attached to the rotating platform. The method involves rotating the build platform; determining the rotational speed; growing the object and the build wall through repetitive cycles of moving the build unit(s) over and substantially parallel to multiple build areas within the build platform to deposit a layer of powder at each build area, leveling the powder, and irradiating the powder to form a fused additive layer at each build area; machining the object being manufactured; and cutting and removing the build wall. The irradiation parameters are calibrated based on the determined rotational speed.