-
公开(公告)号：US10543532B2
公开(公告)日：2020-01-28
申请号：US15451303
申请日：2017-03-06
Applicant: Desktop Metal, Inc.
Inventor： Emanuel Michael Sachs , Mark Gardner Gibson , Richard Remo Fontana
Abstract: Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. Magnets used to form the magnetohydrodynamic forces are thermally managed to facilitate directing strong magnetic fields into liquid metals at high temperatures. Such strong magnetic fields can be useful for imparting, under otherwise equivalent conditions, higher magnetohydrodynamic forces to liquid metal being ejected from a nozzle to form an object.
-
公开(公告)号：US20210379664A1
公开(公告)日：2021-12-09
申请号：US17278050
申请日：2019-09-09
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson , Emanuel Michael Sachs , Julian Bell
IPC: B22F10/80 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B22D23/00 , B22F10/22 , B33Y50/00 , B22F12/90 , B22F12/53
Abstract: An improved additive manufacturing system for manufacturing metal parts by magnetohydrodynamic printing liquid metal. A monitoring system including at least one camera capturing light reflected from a strobe light source. Images of the droplets are captured during their jetting and analyzed to determine whether the jetting performance is meeting specifications. A nozzle of the system has a nozzle bottom and a nozzle stem extending outward therefrom on which a meniscus of liquid metal can form. The nozzle is cleaned by bringing a ceramic rod in the vicinity of the nozzle and jetting a bead of metal which is rotated against the nozzle to remove an amount of dross.
-
公开(公告)号：US20170252821A1
公开(公告)日：2017-09-07
申请号：US15451260
申请日：2017-03-06
Applicant: Desktop Metal, Inc.
CPC classification number: B22F3/115 , B05B5/025 , B22F3/008 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/003 , B22F2009/0892 , B22F2203/03 , B22F2202/06
Abstract: Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. The magnetohydrodynamic force can be pulsed to eject droplets of the liquid metal to provide control over accuracy of the object being fabricated. The pulsations can be applied in fluid chambers having high resonance frequencies such that droplet ejection can be effectively controlled over a wide range of frequencies, including high frequencies suitable for liquid metal ejection at rates suitable for commercially viable three-dimensional fabrication.
-
公开(公告)号：US20220168812A1
公开(公告)日：2022-06-02
申请号：US17437402
申请日：2020-03-20
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson
Abstract: Disclosed is the measurement and control of height in the Z-axis of layers produced in an additive manufacturing process. The height of layers being deposited can be monitored, which may involve the use of a fiducial tower to measure a global errors or optical or other means to measure layers on a layer-by-layer basis. Droplet size, pitch and other conditions may be modified to ameliorate or correct detected errors.
-
公开(公告)号：US20170252828A1
公开(公告)日：2017-09-07
申请号：US15451318
申请日：2017-03-06
Applicant: Desktop Metal, Inc.
Inventor： Emanuel Michael Sachs , Mark Gardner Gibson , Richard Remo Fontana
CPC classification number: B22F3/115 , B05B5/025 , B22F3/008 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/003 , B22F2009/0892 , B22F2203/03 , B22F2202/06
Abstract: Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal from a nozzle along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. A feeder system can provide a continuous or substantially continuous supply of a solid metal to the nozzle to facilitate a correspondingly continuous or substantially continuous process for ejecting liquid metal as part of a commercially viable manufacturing process.
-
Patent Agency Ranking
公开(公告)号：US20170252826A1
公开(公告)日：2017-09-07
申请号：US15451303
申请日：2017-03-06
Applicant: Desktop Metal, Inc.
Inventor： Emanuel Michael Sachs , Mark Gardner Gibson , Richard Remo Fontana
CPC classification number: B22F3/115 , B05B5/025 , B22F3/008 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/003 , B22F2009/0892 , B22F2203/03 , B22F2202/06
Abstract: Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. Magnets used to form the magnetohydrodynamic forces are thermally managed to facilitate directing strong magnetic fields into liquid metals at high temperatures. Such strong magnetic fields can be useful for imparting, under otherwise equivalent conditions, higher magnetohydrodynamic forces to liquid metal being ejected from a nozzle to form an object.
-
7.发明申请公开(公告)号：US20170252824A1
公开(公告)日：2017-09-07
申请号：US15451286
申请日：2017-03-06
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson , Paul A. Hoisington , Richard Remo Fontana
CPC classification number: B22F3/115 , B05B5/025 , B22F3/008 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/003 , B22F2009/0892 , B22F2203/03 , B22F2202/06
Abstract: Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. Electric current delivered to a meniscus of the liquid metal in a quiescent state can be pulsed to reduce the likelihood of formation of an oxidation layer in nozzles associated with these devices, systems, and methods. Such a reduction in the likelihood of formation of an oxidation layer in nozzles can be useful for maintaining integrity of these nozzles between periods of use, such as between formation of parts.
-
公开(公告)号：US20220161330A1
公开(公告)日：2022-05-26
申请号：US17438438
申请日：2020-03-20
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson , Julian Bell , Emanuel Michael Sachs
Abstract: A dross removal system for magnetohydrodynamic additive. A vacuum source is used to create a pressure differential at a nozzle opening sufficient to collect dross from a pool of molten metal. The dross and any collected molten metal can be captured in a waste bin for later disposal. 308
-
公开(公告)号：US20220152706A1
公开(公告)日：2022-05-19
申请号：US17438439
申请日：2020-03-20
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson , Julian Bell
Abstract: A controlled environment system for the additive manufacture of metal objects using magnetohydrodynamic jetting. A sealing plate is placed against an Péclet gap seal of a volume enclosure. A flow of inert gas is used to maintain a high-purity volume in the interior of the volume enclosure. A print head accesses the interior and delivers build material through a hole in the sealing plate. A build plate is movable relative to the sealing plate within the interior of the volume enclosure on which objects can be fabricated.
-
10.发明申请公开(公告)号：US20210323053A1
公开(公告)日：2021-10-21
申请号：US17232343
申请日：2021-04-16
Applicant: Desktop Metal, Inc.
Inventor： Mark Gardner Gibson , Julian Bell , Emanuel Michael Sachs , Nicholas Bandiera
Abstract: A nozzle assembly for metal additive manufacturing using magnetohydrodynamic jetting. A nozzle defines a reservoir and a discharge region having a discharge orifice. A thick film heating system disposed on an exterior of the nozzle and including a first contact pad and a second contact pad connected by a heating pathway heats build material in the nozzle to a liquid state. A first electrode and a second electrode together configured to deliver an electrical current through the liquid build material in the discharge region while a magnet system delivers a magnetic field perpendicular the electrical current, thereby jetting liquid metal to form successive build layers.
-
-
-
-
-
-
-
-
-
Search Results
18
records
(took 0.017 seconds)
