公开(公告)号：US20200056645A1

公开(公告)日：2020-02-20

申请号：US16662666

申请日：2019-10-24

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Kevin Robert CZINGER ,  Broc William TenHOUTEN ,  John Russell BUCKNELL ,  Antonio Bernerd MARTINEZ ,  Eahab Nagi EL NAGA ,  William Bradley BALZER ,  Zachary Meyer OMOHUNDRO ,  Praveen Varma PENMETSA ,  Matthew Michael O'BRIEN ,  John Franklin DUNHAM

IPC: F16B11/00 ,  E04B1/19 ,  B62D29/04 ,  B62D21/02 ,  B62D23/00 ,  B62D27/02

Abstract: Connections between nodes and tubes are provided. An apparatus can include additively manufactured first and second nodes, a tube, and an interconnect connecting the tube to the first and second nodes. An apparatus can include a node having an end portion with inner and outer concentric portions forming an annular gap therebetween, and a tube having an end portion extending into the gap.

公开(公告)号：US20180311769A1

公开(公告)日：2018-11-01

申请号：US15582485

申请日：2017-04-28

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Broc William TenHOUTEN ,  John Russell BUCKNELL ,  Eahab Nagi EL NAGA ,  Kevin Robert CZINGER

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B23K15/02 ,  B23K15/00 ,  B23K26/03 ,  B23K26/06 ,  B23K26/082 ,  B23K26/142 ,  B23K26/00

Abstract: Systems and methods for multi-materials and varying print parameters in Additive Manufacturing systems are provided. In one example, a layer including a first powder material and a second material different from the first powder material are deposited, such that at least a first portion of the first powder material is in a first area that is devoid of the second material. An energy beam is generated and applied to fuse the layer at a plurality of locations. In another example, a layer of a powder material is deposited based on a first subset of parameters. An energy beam is generated based on a second subset of the parameters, and the energy beam is applied to fuse the layer at a plurality of locations based on a third subset of the parameters. At least one of the parameters is set to have different values during a slice printing operation.

公开(公告)号：US20180311758A1

公开(公告)日：2018-11-01

申请号：US15582493

申请日：2017-04-28

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： Eahab Nagi EL NAGA ,  John Russell BUCKNELL

IPC: B23K15/00 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/342

Abstract: Systems and methods for reducing charged powder particle scattering in powder-bed fusion (PBF) systems are provided. A PBF apparatus can include a structure that supports a layer of powder material having a plurality of particles of powder. For example, the structure can be a build plate, a build floor, a build piece, etc. The apparatus can also include an energy beam source that generates an energy beam and a deflector that applies the energy beam to fuse an area of the powder material in the layer. The energy beam can electrically charge the particles of powder. The apparatus can also include an electrical system that generates an electrical force between the structure and the charged particles of powder. For example, the electrical system can include a voltage source that applies a first voltage to the structure.

公开(公告)号：US20180311757A1

公开(公告)日：2018-11-01

申请号：US15582457

申请日：2017-04-28

Applicant: DIVERGENT TECHNOLOGIES, INC.

Inventor： John Russell BUCKNELL ,  Eahab Nagi EL NAGA ,  Kevin Robert CZINGER ,  Broc William TenHOUTEN

IPC: B23K15/00 ,  B33Y30/00 ,  B33Y10/00 ,  B23K26/342

Abstract: Systems and methods for control in additive manufacturing systems are provided. A powder-bed fusion apparatus can include an energy beam source that generates an energy beam and a deflector that applies the energy beam to fuse powder material to create a 3-D object based on an object model. The system can also include a characterizer that obtains information relating to fusing the powder material. The characterizer can be a sensor that measures the shape of the object, a processor that determines a physics-based model of the object, etc. The system can also include a comparator that determines a variation from the object model based on the information, and a compensator that modifies the application of energy to the powder material based on the variation. For example, applied energy can be increased in areas that require higher energy to completely fuse powder material, such areas of thicker powder layer.