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公开(公告)号：EP4166261A1
公开(公告)日：2023-04-19
申请号：EP21202919.3
申请日：2021-10-15
摘要： Disclosed is a method for additively manufacturing an article comprising cemented carbide or cermet, wherein the article comprises at least one binder-free region. The method comprises a) depositing (102) a layer of powder composition and b) adding (104) binder to the area corresponding to the cross-section of the article in the powder composition, except for the at least one binder-free region, if present in that layer. The method further comprises repeating steps a) and b) for each layer of the article, thereby obtaining a green article, and sintering (106) the green article, thus obtaining a manufactured article.
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公开(公告)号：EP4032638A1
公开(公告)日：2022-07-27
申请号：EP21152452.5
申请日：2021-01-20
发明人： BETTINI, Eleonora , DAVIES, Paul , KEARNS, Martin
IPC分类号： B22F1/00 , B22F9/08 , C22C33/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/28 , C22C38/36 , C22C38/38 , B22F3/15 , B22F3/22 , B22F10/14 , B22F10/28 , B22F10/34 , B33Y70/00 , B33Y80/00
摘要： A steel powder, comprising, in wt.%, C 0.05-2.0, Mn 14.0-30.0, Al 5.0-10.0, Cr 3.0-10.0, Si 0.1-2.0, Ti 0.05-0.5, and, as optionals, Ni 0.0-0.2, N 0.0-1.0, O 0.0-0.50, and balance Fe and unavoidable impurities.
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公开(公告)号：EP4000771A1
公开(公告)日：2022-05-25
申请号：EP20208094.1
申请日：2020-11-17
IPC分类号： B22F10/20 , B22F10/40 , B22F12/00 , B29C64/153 , B29C64/245 , B29C64/40 , B33Y10/00 , B33Y30/00
摘要： Disclosed is a method for manufacturing an article (230) requiring support (235) on top of a base device (220) using an additive manufacturing process in an additive manufacturing device, wherein the additive manufacturing device comprises a build plate (200). The build plate (200) comprises a receptacle (210) for receiving the base device (220) and an insert (240), provided in proximity to each base device, the insert being adapted for having a support (250) for the article manufactured thereon. The method comprises the step of manufacturing (302) the article on top of the base device, and manufacturing (306) the support (250) for the article (230) on top of the insert (240).
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4.发明公开
公开(公告)号：EP3831514A1
公开(公告)日：2021-06-09
申请号：EP19212833.8
申请日：2019-12-02
发明人： BOSTRÖM, Magnus , VIKLUND, Per
IPC分类号： B22F3/105 , B29C64/153 , B29C64/205 , B29C64/386 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/00 , B33Y50/02 , B22F3/00 , B33Y40/00
摘要： The present invention relates to a leveling assembly (100) for an additive manufacturing apparatus, wherein the leveling assembly comprises: a leveling device (101,201) for leveling a powder bed (103) of a build chamber (104) of the additive manufacturing apparatus; a frame (105) operatively connected to said leveling device and configured to traverse the powder bed with the leveling device, wherein the frame comprises: a drive (106) configured to move the frame (105) and the leveling device (101) over the powder bed (103); and wherein the frame is characterized by comprising: a force sensor (107) configured to sense a force acting on the leveling device, said force depending on the force with which the leveling device acts on the powder bed.
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公开(公告)号：EP3763462A1
公开(公告)日：2021-01-13
申请号：EP19184859.7
申请日：2019-07-08
发明人： BOSTRÖM, Magnus , VIKLUND, Per
IPC分类号： B22F3/00 , B22F3/10 , B29C64/165 , B29C64/182 , B33Y10/00 , B33Y30/00
摘要： A binder jet printer (100) for additive manufacturing, comprising: a build chamber (101); a powder supply source (106) configured to provide powder to a build chamber; a leveling assembly (104) for leveling a powder bed in a build chamber, thereby forming a powder bed in a build chamber in which a green body is formed; a print head (107) configured for depositing binder on a leveled powder bed in a build chamber; a radiant (105) configured to irradiate a powder bed in a build chamber; a control unit (108) configured to: control the powder supply source to provide powder to a build chamber; control the leveling assembly to level the powder bed in the build chamber; control the print head to deposit binder on the leveled powder bed in the build chamber; wait a predetermined time for the deposited binder to soak the powder bed in the build chamber; control the radiant to irradiate the soaked powder bed in the build chamber. The binder jet printer further comprises at least one further build chamber (102,103), and in that the control unit further is configured to: control the powder supply source to provide powder to the at least one further build chamber; control the leveling assembly to level the powder bed in the at least one further build chamber; control the print head to deposit binder on the leveled powder bed in the at least one further build chamber; wait a predetermined time for the deposited binder to soak the powder bed in the at least one further build chamber; control the radiant to irradiate the soaked powder bed in the further build chamber;control at least two of the powder source, leveling assembly, print head, and the radiant to simultaneously serve the build chamber and the at least one further build chamber.
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公开(公告)号：EP4427866A1
公开(公告)日：2024-09-11
申请号：EP23160115.4
申请日：2023-03-06
发明人： Deirmina, Faraz , Bettini, Eleonora
IPC分类号： B22F1/00 , B33Y70/00 , C22C33/00 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/28 , B22F1/052
CPC分类号： B33Y70/00 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/02 , C22C38/04 , C22C33/00 , B22F10/14 , B22F10/25 , B22F10/28 , C22C33/0264 , B33Y10/00 , B33Y40/20 , B22F9/082 , B22F2009/082420130101 , B22F2999/0020130101 , B22F2009/089620130101 , B22F10/64 , B22F1/05 , C21D6/005 , C21D6/008 , B22F2998/1020130101 , C21D6/002 , C21D1/25
摘要： The present invention relates to a Fe-based powder for additive manufacturing comprising the following elements in wt% based on the weight of all elements of the powder:
i) C in an amount ranging from 0.20 to 0.28
ii) Si in an amount ranging from 0.02 to 0.50
iii) Mn in an amount ranging from 0.1 to 0.8
iv) Cr in an amount ranging from 1.2 to 4.0
v) Mo in an amount ranging from of 1.8 to 3.0
vi) V in an amount ranging from 0.2 to 0.9
vii) Zr in an amount ranging from 0.001 to 0.015;
the balance being Fe.
The invention also relates to the use of a Fe-based powder for additive manufacturing and to a process for producing an object by additive manufacturing, comprising building an object by iteratively
i) melting particles comprised in a Fe-based powder as described herein
ii) solidifying the melt to form a built object
iii) tempering the built object.-
公开(公告)号：EP4341023A1
公开(公告)日：2024-03-27
申请号：EP22730386.4
申请日：2022-05-18
IPC分类号： B22F7/08 , B22F10/14 , B22F10/28 , B22F10/31 , B22F12/30 , B22F12/90 , B29C64/182 , B29C64/245 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
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公开(公告)号：EP4166259A1
公开(公告)日：2023-04-19
申请号：EP21202680.1
申请日：2021-10-14
发明人： DEIRMINA, Faraz , MAGNUSSON, Hans
IPC分类号： B22F1/052 , B22F10/28 , B33Y80/00 , B22F10/64 , B33Y40/20 , B33Y10/00 , B22F10/14 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/50 , C22C38/52 , B22F10/25 , C22C38/06 , B33Y70/00 , C21D6/00 , C21D6/02
摘要： A metal powder for additive manufacturing, comprising, in wt%, Ni 9.0-12.0, Cr 2.0-4.5, Mo 3.5-4.5 and Ti 0.1-1.0; and, if present, Si up to 0.5, Mn up to 0.5, Al up to 0.1, Co up to 0.1, N up to 0.05 and/or C up to 0.07; the balance being Fe and usual impurities. Use of the metal powder for additive manufacturing. A process for producing an object by additive manufacturing, comprising building an object by iteratively melting particles of the metal powder and solidifying the melt, and subsequently aging the built object without any preceding solution annealing thereof.
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公开(公告)号：EP4086023A1
公开(公告)日：2022-11-09
申请号：EP21172490.1
申请日：2021-05-06
发明人： GRANDIN, Lisa , PERSSON, George
摘要： Disclosed is a method for manufacturing an article comprising a groove. The method comprises obtaining (202) a model of an article to be manufactured, the article comprising a groove, the groove comprising two sides with a gap in between. The method further comprises adapting (204) the model by adding a support connecting the sides of the groove, and additively manufacturing (206) the article based on the adapted model. The method further comprises removing (207) loose powder from the groove, sintering (208) the additively manufactured article, and removing (210) the support, thus obtaining a manufactured article.
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公开(公告)号：EP3993924A1
公开(公告)日：2022-05-11
申请号：EP20733639.7
申请日：2020-06-23
发明人： DE FLON, John , KAPLAN, Bartek
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