公开(公告)号：WO2018217290A1

公开(公告)日：2018-11-29

申请号：PCT/US2018/024510

申请日：2018-03-27

Applicant: NLIGHT, INC.

Inventor： KARLSEN, Scott ,  KLINER, Dahv A.V. ,  FARROW, Roger

IPC: B23K26/342 ,  B23K26/70 ,  B33Y30/00 ,  B29C64/393 ,  B33Y50/02

Abstract: An apparatus for temperature control in additive manufacturing may include: an optical beam source configured to generate one or more optical beams; a homogenizer configured to flatten an irradiance profile of the generated one or more optical beams; and/or an optical system configured to form the generated one or more optical beams so as to match a portion of a shape of a powder bed. The apparatus may include optical beam sources configured to generate two or more optical beams; and/or an optical system configured to form the generated two or more optical beams to match the portion of the shape of the powder bed. The apparatus, using the formed one or more optical beams with the flattened irradiance profile or using the formed two or more optical beams, may be configured to pre-heat the powder bed prior to fusing and/or to post-heat the fused powder bed.

公开(公告)号：WO2018217277A1

公开(公告)日：2018-11-29

申请号：PCT/US2018/022629

申请日：2018-03-15

Applicant: NLIGHT, INC.

Inventor： KARLSEN, Scott ,  MARTINSEN, Robert ,  KLINER, Dahv, A.V. ,  FARROW, Roger

IPC: B22F3/105 ,  G02B27/09 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/14 ,  G02B26/101 ,  G02B26/103 ,  G02B27/09 ,  G02B27/0927 ,  G02B27/0994

Abstract: An apparatus for heat deposition in additive manufacturing may include: a first optical beam source configured to generate a first optical beam; a second optical beam source configured to generate a second optical beam; and/or an optical system. The optical system may be configured to move the generated first optical beam over a target area. The optical system may be further configured to move the generated second optical beam over the target area so that a path of the second optical beam moving over the target area is dithered about a path of the first optical beam moving over the target area. The optical system may be configured to focus the generated first optical beam at a plane of a target area. The optical system may be further configured to focus the generated second optical beam at the plane of the target area.

公开(公告)号：WO2018217292A1

公开(公告)日：2018-11-29

申请号：PCT/US2018/024548

申请日：2018-03-27

Applicant: NLIGHT, INC.

Inventor： GROSS, Ken ,  KARLSEN, Scott ,  KLINER, Dahv, A.V. ,  FARROW, Roger

IPC: B23K26/38 ,  B23K26/064 ,  H01S3/067 ,  G02B6/10

CPC classification number: B23K26/064 ,  B23K26/048 ,  B23K26/14 ,  B23K26/38 ,  B23K26/40 ,  B23K2103/04 ,  B23K2103/05 ,  G02B6/262

Abstract: Disclosed herein are methods, apparatus, and systems for perturbing a laser beam propagating within a first length of fiber to adjust one or more beam characteristics of the laser beam in the first length of fiber or a second length of fiber or a combination thereof, coupling the perturbed laser beam into a second length of fiber and maintaining at least a portion of one or more adjusted beam characteristics within a second length of fiber having.