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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：US20240131594A1
公开(公告)日：2024-04-25
申请号：US18402532
申请日：2024-01-02
发明人： Denis Cormier , Santokh S. Badesha , Varun Sambhy
摘要： A three-dimensional (3D) object printer has an ejector head with a single nozzle that is fluidly connected to a plurality of orifices in an orifice plate of the ejector head. An ejection of material through the single nozzle is emitted through the plurality of orifices simultaneously. In one embodiment, some of the orifices are oriented at an angle to an axis perpendicular to the orifice plate. This configuration enables a structure to be formed with a predetermined material density without needing to increase the ejection frequency significantly or requiring the printer to incorporate multiple ejector heads.
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公开(公告)号：US11931804B2
公开(公告)日：2024-03-19
申请号：US17554089
申请日：2021-12-17
发明人： Mariusz Tadeusz Mika , Paul J. McConville , Peter M. Gulvin , Colin G. Fletcher , Daimon Heller , Miranda Moschel
CPC分类号： B22F10/22 , B33Y10/00 , B33Y30/00 , B22F2301/052 , B22F2301/058 , B22F2301/205 , B33Y70/00 , C22C16/00 , C22C21/00 , C22C23/04 , C22C2200/02
摘要： A metal component is disclosed. The metal component has a first dimension greater than 5 mm, and a second dimension greater than 5 mm. The metal component may include where the alloy includes titanium, aluminum, vanadium, carbon, nitrogen, and oxygen. The alloy may include zirconium, titanium, copper, nickel, and beryllium. The metal component is not die-cast, melt-spun, or forged. An ejector and a method for jetting the metal component is also disclosed.
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公开(公告)号：US11858276B2
公开(公告)日：2024-01-02
申请号：US17131498
申请日：2020-12-22
CPC分类号： B41J2/17566 , G01F23/24 , G01F23/241 , B41J2002/17579
摘要： An implementation of the present teachings includes a resistor structure for measuring a level of a print material such as a liquid metal print material within a reservoir of a printer such as a magnetohydrodynamic printer. The resistor structure includes a first electrode and a second electrode that are physically and electrically separated from each other. When positioned within the reservoir, the liquid metal physically contacts the first electrode and the second electrode. An electrical resistance between the first and second electrodes changes depending on the level of the print material within the reservoir. As the level of the print material decreases, the electrical resistance between the first electrode and the second electrode increases. The electrical resistance can be measured and used to determine a level of the print material within the reservoir.
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公开(公告)号：US20240359235A1
公开(公告)日：2024-10-31
申请号：US18307352
申请日：2023-04-26
CPC分类号： B22F10/22 , B22F12/10 , B22F12/20 , B22F12/53 , B22F12/90 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： A method for printing a 3D part includes decreasing a temperature of a build material in a nozzle of a 3D printer below a melting point of the build material, which causes the build material in the nozzle to transition from a liquid state to a solid state. The method also includes increasing the temperature of the build material in the nozzle above the melting point of the build material, which causes the build material in the nozzle to transition from the solid state to a sludgy state. An occlusion and the build material in the sludgy state are ejected from the nozzle.
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公开(公告)号：US12083595B2
公开(公告)日：2024-09-10
申请号：US17664470
申请日：2022-05-23
发明人： PriyaankaDevi Guggilapu , Benjamin Paulson , Dinesh Krishna Kumar Jayabal , Collin A. Ladd , Stuart A. Schweid
IPC分类号： B22F10/38 , B22F10/22 , B22F10/85 , B22F12/53 , B22F12/90 , B33Y10/00 , B33Y30/00 , B33Y50/02
CPC分类号： B22F10/385 , B22F10/22 , B22F10/85 , B22F12/53 , B22F12/90 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A three-dimensional (3D) metal object manufacturing apparatus is operated to compensate for surface deviations of overhanging features differently than for non-overhanging features. The compensation technique used for the overhanging features depends on whether an edge of the overhanging feature being formed in a next layer has curved or sharp corners.
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公开(公告)号：US20240216991A1
公开(公告)日：2024-07-04
申请号：US18428251
申请日：2024-01-31
发明人： Mariusz Tadeusz MIKA , Paul J. MCCONVILLE , Peter M. GULVIN , Colin G. FLETCHER , Daimon HELLER , Miranda MOSCHEL
CPC分类号： B22F10/22 , B33Y10/00 , B33Y30/00 , B22F2301/052 , B22F2301/058 , B22F2301/205 , B33Y70/00 , C22C16/00 , C22C21/00 , C22C23/04 , C22C2200/02
摘要： A metal component is disclosed. The metal component has a first dimension greater than 5 mm, and a second dimension greater than 5 mm. The metal component may include where the alloy includes titanium, aluminum, vanadium, carbon, nitrogen, and oxygen. The alloy may include zirconium, titanium, copper, nickel, and beryllium. The metal component is not die-cast, melt-spun, or forged. An ejector and a method for jetting the metal component is also disclosed.
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公开(公告)号：US11999165B2
公开(公告)日：2024-06-04
申请号：US17850526
申请日：2022-06-27
发明人： Chu-heng Liu
IPC分类号： B41J2/14
CPC分类号： B41J2/14314 , B41J2/1433
摘要： A method for operating a printer can include draining a print material from a printer, placing a sacrificial metal into the printer, ejecting the sacrificial metal from a nozzle of the printer, and cooling to printer to a temperature that is below a melting point of the print material and the sacrificial metal. The print material can be or include aluminum and the sacrificial metal can be or include tin. The print material can be drained from the printer when the print material is in molten form, for example, from about 600° C. to about 2000° C. The sacrificial metal can be ejected from the nozzle at a temperature above the melting point of the sacrificial metal but below the melting point of the print material, for example, below about 300° C. The method can reduce or eliminate cracking of various printer structures such as the nozzle during a shutdown or cooling of the printer.
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9.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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