公开(公告)号：US20230249400A1

公开(公告)日：2023-08-10

申请号：US18301478

申请日：2023-04-17

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Neil Hopkinson

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/314 ,  B29C64/209 ,  B29C64/236 ,  B29C64/277 ,  B29C64/218 ,  B33Y40/10 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B22F12/67 ,  B29C64/282

CPC classification number: B29C64/165 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B22F12/67 ,  B29C64/209 ,  B29C64/218 ,  B29C64/236 ,  B29C64/277 ,  B29C64/282 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B22F10/68

Abstract: A method of manufacturing a three-dimensional object from a powder to form each layer of the object. The method includes the steps of driving a powder distribution sled in a first direction to distribute a layer of powder; driving a print sled in the first direction; driving the print sled and the powder distribution sled in a second direction; preheating the layer of powder by activating multiple radiation sources during various ones of the driving steps; during some of the driving steps, depositing a pattern of fluid onto the layer of powder; and sintering the powder on which fluid was deposited only in the second direction, by activating the at least one radiation source assembly during various ones of the driving steps in that direction. Repeating the above steps to distribute the next layer of powder.

公开(公告)号：US11660809B2

公开(公告)日：2023-05-30

申请号：US17311242

申请日：2019-12-05

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Neil Hopkinson

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/209 ,  B29C64/236 ,  B29C64/218 ,  B33Y40/10 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B29C64/282 ,  B29C64/314 ,  B29C64/277 ,  B22F12/67 ,  B22F10/68 ,  B22F10/73 ,  B22F12/41 ,  B22F12/90

CPC classification number: B29C64/165 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B22F12/67 ,  B29C64/209 ,  B29C64/218 ,  B29C64/236 ,  B29C64/277 ,  B29C64/282 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B22F10/68 ,  B22F10/73 ,  B22F12/41 ,  B22F12/90

Abstract: Apparatus (1) for manufacturing a three-dimensional object from a powder, the apparatus (1) comprising: a build bed (201) having a build area (190), wherein successive layers of said three-dimensional object are formed in the build bed (201); a powder distribution sled (300) operable to distribute a layer of powder within the build area (190), the powder distribution sled (300) being driveable in a first direction along a first axis, across the build area (190), and driveable in a second direction, opposite to the first direction, along the first axis; and a print sled (350) operable to deposit a pattern of fluid onto the layer of powder within the build area (190) to define the cross section of said object in said layer, the print sled (350) being driveable in the first direction along a second axis across the build area, and driveable in the second direction along the second axis; wherein the first axis is parallel to, or coaxial with, the second axis; wherein the print sled (350) comprises one or more droplet deposition heads (370) for depositing the fluid, a first radiation source assembly (L1), and a second radiation source assembly (L2); wherein the powder distribution sled (300) comprises a powder distribution device (320) for distributing the powder, a third radiation source assembly (L3) and a fourth radiation source assembly (L4); and wherein each of the first, second, third and fourth radiation source assemblies is operable to both preheat and sinter powder within the build area (190). A method of manufacturing a three-dimensional object from a powder using such apparatus is also provided.

公开(公告)号：US20220388240A9

公开(公告)日：2022-12-08

申请号：US17311242

申请日：2019-12-05

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Neil Hopkinson

IPC: B29C64/165 ,  B29C64/209 ,  B29C64/236 ,  B29C64/314 ,  B29C64/277 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B29C64/218

Abstract: Apparatus (1) for manufacturing a three-dimensional object from a powder, the apparatus (1) comprising: a build bed (201) having a build area (190), wherein successive layers of said three-dimensional object are formed in the build bed (201); a powder distribution sled (300) operable to distribute a layer of powder within the build area (190), the powder distribution sled (300) being driveable in a first direction along a first axis, across the build area (190), and driveable in a second direction, opposite to the first direction, along the first axis; and a print sled (350) operable to deposit a pattern of fluid onto the layer of powder within the build area (190) to define the cross section of said object in said layer, the print sled (350) being driveable in the first direction along a second axis across the build area, and driveable in the second direction along the second axis; wherein the first axis is parallel to, or coaxial with, the second axis; wherein the print sled (350) comprises one or more droplet deposition heads (370) for depositing the fluid, a first radiation source assembly (L1), and a second radiation source assembly (L2); wherein the powder distribution sled (300) comprises a powder distribution device (320) for distributing the powder, a third radiation source assembly (L3) and a fourth radiation source assembly (L4); and wherein each of the first, second, third and fourth radiation source assemblies is operable to both preheat and sinter powder within the build area (190). A method of manufacturing a three-dimensional object from a powder using such apparatus is also provided.

公开(公告)号：US12005642B2

公开(公告)日：2024-06-11

申请号：US18301478

申请日：2023-04-17

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Neil Hopkinson

IPC: B29C64/165 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B22F12/67 ,  B29C64/209 ,  B29C64/218 ,  B29C64/236 ,  B29C64/277 ,  B29C64/282 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B22F10/68 ,  B22F10/73 ,  B22F12/41 ,  B22F12/90

CPC classification number: B29C64/165 ,  B22F10/14 ,  B22F10/28 ,  B22F12/13 ,  B22F12/45 ,  B22F12/67 ,  B29C64/209 ,  B29C64/218 ,  B29C64/236 ,  B29C64/277 ,  B29C64/282 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B22F10/68 ,  B22F10/73 ,  B22F12/41 ,  B22F12/90

Abstract: A method of manufacturing a three-dimensional object from a powder to form each layer of the object. The method includes the steps of driving a powder distribution sled in a first direction to distribute a layer of powder; driving a print sled in the first direction; driving the print sled and the powder distribution sled in a second direction; preheating the layer of powder by activating multiple radiation sources during various ones of the driving steps; during some of the driving steps, depositing a pattern of fluid onto the layer of powder; and sintering the powder on which fluid was deposited only in the second direction, by activating the at least one radiation source assembly during various ones of the driving steps in that direction. Repeating the above steps to distribute the next layer of powder.

公开(公告)号：US11780167B2

公开(公告)日：2023-10-10

申请号：US16764924

申请日：2018-11-16

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Alexander Rasmussen

IPC: B29C64/357 ,  B29C64/307 ,  B29C64/214 ,  B29C64/314 ,  B29C64/321 ,  B29C64/153 ,  B29C64/245 ,  B29C64/255 ,  B29C64/295 ,  B33Y40/00 ,  B22F10/73 ,  B22F12/50 ,  B33Y30/00 ,  B29C64/209 ,  B29C64/227 ,  B33Y40/10 ,  B22F10/28 ,  B22F12/13 ,  B22F12/20 ,  B22F12/57 ,  B22F12/63 ,  B22F12/90

CPC classification number: B29C64/307 ,  B22F10/73 ,  B22F12/50 ,  B29C64/153 ,  B29C64/214 ,  B29C64/245 ,  B29C64/255 ,  B29C64/295 ,  B29C64/314 ,  B29C64/321 ,  B29C64/357 ,  B33Y40/00 ,  B22F10/28 ,  B22F12/13 ,  B22F12/20 ,  B22F12/57 ,  B22F12/63 ,  B22F12/90 ,  B29C64/209 ,  B29C64/227 ,  B33Y30/00 ,  B33Y40/10

Abstract: A powder recirculation system for an apparatus for manufacturing a three-dimensional object (500) from powder is provided. The powder recirculation system comprises: a delivery path coupled to an outlet of a powder tank (410), the powder tank configured to store the powder; a powder repository (115) coupled to an outlet of the delivery path, the delivery path comprising a delivery mechanism for delivering the powder from the powder tank to the powder repository; a powder recirculation path coupled to an outlet (102) of the powder repository, wherein the powder recirculation path is configured to return first excess powder from the powder repository to the delivery path at a location (103, 104) upstream of the outlet of the powder tank.