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公开(公告)号：US12109656B2
公开(公告)日：2024-10-08
申请号：US17353555
申请日：2021-06-21
CPC分类号： B23K9/042 , B23K9/164 , B23K9/325 , B23K35/383 , B33Y10/00 , B33Y30/00 , B33Y40/10 , B33Y50/02
摘要： A three-dimensional (3D) metal object manufacturing apparatus is configured to increase the oxidation of ejected melted metal drops for the formation of metal support structures during manufacture of a metal object with the apparatus. The oxidation can be increased by either increasing a distance between the ejector head and a platform supporting the metal object or by providing an air flow transverse to the direction of movement of the melted metal drops, or both.
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2.发明公开公开(公告)号：US20240100601A1
公开(公告)日：2024-03-28
申请号：US17935691
申请日：2022-09-27
CPC分类号： B22F12/53 , B22D23/003 , B22F10/85 , B22F12/90 , B33Y30/00 , B33Y50/02 , B22F2202/05
摘要： A three-dimensional (3D) metal object manufacturing apparatus is equipped with a vessel having a receptacle that holds melted metal. The vessel has one or more electrical coils positioned at an upper end of the vessel near an inlet for solid metal that is melted within the receptacle. AC electrical current is passed through the one or more electrical coils to produce traveling magnetic fields in the melted metal at the upper end of the receptacle in the vessel to stir the melted metal and attenuate the formation of dross in the melted metal.
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公开(公告)号：US11931799B2
公开(公告)日：2024-03-19
申请号：US17412399
申请日：2021-08-26
IPC分类号： B22D23/00 , B22F10/22 , B22F10/36 , B22F12/30 , B22F12/41 , B22F12/53 , B22F12/70 , B33Y10/00 , B33Y30/00
CPC分类号： B22D23/003 , B22F10/22 , B22F10/36 , B22F12/30 , B22F12/41 , B22F12/53 , B22F12/70 , B33Y10/00 , B33Y30/00
摘要： A three-dimensional (3D) metal object manufacturing apparatus is equipped with a movable directed energy source to melt hardened metal drops and form an oxidation layer. A metal support structure can be formed over the oxidation layer, an object feature can be formed over the oxidation layer, or both a metal support structure and an object feature can be formed over oxidation layers located at opposite sides of a metal support structure. The oxidation layers weakly attach the metal support structure to the object feature supported by the metal support structure so the support structure can be easily removed after manufacture of the object is complete.
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公开(公告)号：US11890673B2
公开(公告)日：2024-02-06
申请号：US17374762
申请日：2021-07-13
发明人： Linn C. Hoover , Joseph C. Sheflin , Jason M. LeFevre , Seemit Praharaj , David Alan Vankouwenberg , Chu-Heng Liu , Douglas K. Herrmann
CPC分类号： B22D43/00 , B22D23/003 , B33Y30/00 , B33Y40/00 , B33Y50/00
摘要： A dross extraction system for a printer is disclosed, which includes an ejector defining an inner cavity associated therewith, the inner cavity retaining a liquid printing material. The dross extraction system also includes a first inlet coupled to the inner cavity of the ejector, a probe external to the ejector, which is selectably positionable to contact the liquid printing material to attract dross thereto, thereby extracting dross from the liquid printing material when the probe is withdrawn from the liquid printing material. A method of extracting dross from a metal jetting printer is also disclosed, which includes pausing an operation of the metal jetting printer, advancing a probe into a melt pool within a nozzle pump reservoir in the metal jetting printer, extracting dross from the metal printing material and onto the probe, retracting the probe from the nozzle pump reservoir, and resuming the operation of the metal jetting printer.
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公开(公告)号：US11845227B2
公开(公告)日：2023-12-19
申请号：US17060600
申请日：2020-10-01
IPC分类号： B29C64/379 , B29C64/232 , B29C64/236 , B29C64/112 , B29C64/241 , B29C64/209 , B23K28/00 , B23K37/04 , B23P17/00 , B23P11/00 , B33Y30/00 , B23K103/10
CPC分类号： B29C64/379 , B23K28/00 , B23K37/04 , B23P11/00 , B23P17/00 , B29C64/112 , B29C64/209 , B29C64/232 , B29C64/236 , B29C64/241 , B23K2103/10 , B33Y30/00
摘要： A three-dimensional (3D) printer is configured to introduce a liquid metal onto a first part and a second part while the first part and the second part are in contact with one another. The liquid metal subsequently solidifies to join the first part and the second part together to produce an assembly.
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6.发明公开公开(公告)号：US20240207925A1
公开(公告)日：2024-06-27
申请号：US18595868
申请日：2024-03-05
IPC分类号： B22D23/00 , B22F10/22 , B22F10/36 , B22F12/30 , B22F12/41 , B22F12/53 , B22F12/70 , B33Y10/00 , B33Y30/00
CPC分类号： B22D23/003 , B22F10/22 , B22F10/36 , B22F12/30 , B22F12/41 , B22F12/53 , B22F12/70 , B33Y10/00 , B33Y30/00
摘要： A three-dimensional (3D) metal object manufacturing apparatus is equipped with a movable directed energy source to melt hardened metal drops and form an oxidation layer. A metal support structure can be formed over the oxidation layer, an object feature can be formed over the oxidation layer, or both a metal support structure and an object feature can be formed over oxidation layers located at opposite sides of a metal support structure. The oxidation layers weakly attach the metal support structure to the object feature supported by the metal support structure so the support structure can be easily removed after manufacture of the object is complete.
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