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公开(公告)号：US20250162037A1
公开(公告)日：2025-05-22
申请号：US18957226
申请日：2024-11-22
Applicant: Divergent Technologies, Inc.
Inventor： Bahram ISSARI , Michael Thomas Kenworthy , Chan Cheong Pun , Gordon Tajiri
Abstract: Aspects are provided for passivation of waste metal streams. An apparatus may include a three-dimensional (3-D) printer that produces a waste powder during 3-D printing of a printed part, a passivator configured to receive the waste powder and melt the waste powder, and a container configured to collect the molten waste powder. A method may include generating a waste powder during 3-D printing of a printed part, collecting the waste powder in a passivator, heating the passivator to melt the waste powder, and collecting the molten waste powder. Aspects of this disclosure can include the passivator maintaining an inert environment.
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公开(公告)号：US20240308137A1
公开(公告)日：2024-09-19
申请号：US18602844
申请日：2024-03-12
Applicant: Divergent Technologies, Inc.
Inventor： Bahram ISSARI , Michael Thomas Kenworthy , Loan Chanh Le
CPC classification number: B29C64/30 , B05C5/0212 , B29C64/10 , B33Y40/20 , B33Y80/00 , B29C64/153
Abstract: Apparatus and methods for applying adhesives in grooves in additively manufactured (AM) structures are disclosed. An apparatus in accordance with an aspect of the present disclosure comprises an AM structure having a first continuous section with a first groove for receiving a first adhesive and a second discontinuous section with a second groove passing through a portion of the second discontinuous section for receiving a second adhesive, wherein an internal surface of the first continuous section surrounds at least three internal surfaces of the second discontinuous section.
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3.发明授权公开(公告)号：US12090551B2
公开(公告)日：2024-09-17
申请号：US17728476
申请日：2022-04-25
Applicant: DIVERGENT TECHNOLOGIES, INC.
Inventor： Michael Thomas Kenworthy , Taylor Caitlin Doty , Bahram Issari , Narender Shankar Lakshman , Krzysztof Artysiewicz
CPC classification number: B22F10/43 , B22F10/40 , B22F10/62 , B22F10/64 , B22F10/66 , B33Y10/00 , B33Y40/20 , B22F10/28
Abstract: Methods for removing support structures in additively manufactured parts are disclosed. A method in accordance with an aspect of the present disclosure comprises inserting a demolition object in a first state into a hollow portion of a 3-D printed part, breaking a support structure within the hollow portion by contact with the demolition object, changing the demolition object into a second state while the demolition object is within the hollow portion of the 3-D printed part, and removing the demolition object from the hollow portion of the 3-D printed part.
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4.发明公开公开(公告)号：US20240300024A1
公开(公告)日：2024-09-12
申请号：US18597267
申请日：2024-03-06
Applicant: Divergent Technologies, Inc.
Inventor： Gordon Tajiri , Michael Thomas Kenworthy , Jason Scott , Ted Wagner
Abstract: The present aspects include a recoater blade system. The recoater blade system includes a blade body with a longitudinal length between a first end and a second end, and a sensor device associated with the blade body. The sensor device is configured to receive inputs relating to characteristics of a powder bed. The inputs may include drag force of the blade body across the powder bed and impact force on the blade body, and these inputs may determine the spreading quality of the blade body and any surface defects that may be present.
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公开(公告)号：US20210268738A1
公开(公告)日：2021-09-02
申请号：US16803799
申请日：2020-02-27
Applicant: DIVERGENT TECHNOLOGIES, INC.
Inventor： Michael Thomas Kenworthy
IPC: B29C64/314 , B22F1/00 , B33Y10/00 , B33Y30/00 , B33Y40/10
Abstract: Techniques for dehumidifying powder used as print material in a powder bed fusion (PBF) three-dimensional (3-D) system are disclosed. A hopper includes one or more ultrasonic transducers (UTs) positioned at strategic locations. When activated, the UTs use sound pressure at ultrasonic frequencies to agitate the powder particles held in the hopper. The movement of the particles drives moisture trapped between the particles into one or more desiccants. In various embodiments, the desiccants may be supported by desiccators suspended in the powder, such as via the casing of the hopper. In other embodiments, the desiccants may be desiccant bags provided in a desiccant insert. The moisture accumulates in the desiccants. Among other advantages, no separate thermal source is needed to dry the powder, which can be provided directly to the PBF 3-D system via the re-coater for depositing layers to form a build piece.
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Patent Agency Ranking
公开(公告)号：US20210154771A1
公开(公告)日：2021-05-27
申请号：US16692918
申请日：2019-11-22
Applicant: DIVERGENT TECHNOLOGIES, INC.
Abstract: Techniques for pre-heating the powders of layer deposited on the powder bed during a 3-D print process conducted by a 3-D printer are disclosed. A re-coater includes a heat source that pre-heats the deposited layer as a leveling member of the re-coater smooths the layer onto the powder bed. In some embodiments, the re-coater reheats the powder bed following the selective fusing of a layer by an energy beam source. The consistent pre-heating and re-heating of the powder directly on the surface of the powder bed maximally reduces damage, cracks, dimensional flaws, and other artifacts created by excessive thermal gradients in the case where heat is not used.
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公开(公告)号：US20200079028A1
公开(公告)日：2020-03-12
申请号：US16568188
申请日：2019-09-11
Applicant: DIVERGENT TECHNOLOGIES, INC.
Inventor： Samuel Noah Miller , Michael Thomas Kenworthy , Eric Paul Monteith , Thomas Samuel Bowden, JR.
IPC: B29C64/40 , B29C64/153 , B29C64/205 , B29C64/268 , B29C64/245 , B29C64/255 , B29C64/329
Abstract: 3-D build jobs having surrogate supports, 3-D printers using surrogate supports, and techniques to support vulnerable regions of build pieces using surrogate supports are disclosed. The surrogate supports are generated in a first material configuration and are offset via a gap from the vulnerable regions. The gap comprises a second material configuration, such as loose or partially fused powder on which the build piece can be supported during 3-D printing. In alternative embodiments, the gap instead includes thin manual ties or a solid body using material that is stronger but more amenable to breaking off without damaging the build piece. Post-processing steps are dramatically reduced as the surrogate supports and gaps facilitate virtually error-free separation from the build piece. In an embodiment, the surrogate supports include a support structure extending to a fixed base underneath, the fixed base being a build plate or a global surrogate.
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公开(公告)号：US20250163546A1
公开(公告)日：2025-05-22
申请号：US18814143
申请日：2024-08-23
Applicant: Divergent Technologies, Inc.
Inventor： Mu LI , Christian Patino , Keith Mertan , Chan Cheong Pun , Michael Thomas Kenworthy
Abstract: An alloy may include iron (Fe), manganese (Mn) and aluminum (Al). The Fe may include the range 1% to 5.8% by weight of the alloy, the Mn may include the range 1.2% to 9.1% by weight of the alloy. The alloy may further include one or more of silicon (Si), nickel (Ni) and zirconium (Zr). Also, an alloy may include copper (Cu), magnesium (Mg), Zr and Al, wherein the Cu may include the range 0.8% to 5.1% by weight of the alloy, the Mg may include the range 0.5% to 3.9% by weight of the alloy and the Zr may include the range 0.3% to 10% by weight of the alloy, and the alloy may further include one or more of manganese, lithium, titanium, silicon, iron and nickel.
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公开(公告)号：US12269093B2
公开(公告)日：2025-04-08
申请号：US18159646
申请日：2023-01-25
Applicant: Divergent Technologies, Inc.
Inventor： Bahram Issari , Michael Thomas Kenworthy , Taylor Caitlin Doty
Abstract: Apparatus and methods for removing and/or destroying support structures associated with objects fabricated using additive manufacturing techniques are presented herein. Structural supports may be used during an additive manufacturing process to prevent deformation of a build piece (e.g., three dimensional (3D) printed structure). In some examples, a build piece may be manufactured such that the structural supports are internal to the completed build piece. However, removing the structural supports may reduce the weight of the build piece and reduce the amount of debris trapped within the build piece. Thus, certain aspects of the disclosure are directed to a hose including a bendable and elongated tube member as well as a fracturing member configured to fracture an internal support structure within an additively manufactured part.
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公开(公告)号：US12226824B2
公开(公告)日：2025-02-18
申请号：US17520582
申请日：2021-11-05
Applicant: Divergent Technologies, Inc.
Inventor： Michael Thomas Kenworthy
Abstract: Techniques for rapid powder removal in a 3-D printer are disclosed. In various embodiments, the 3-D printer has a build plate for supporting a build piece. The build plate includes first structures for supporting unfused powder on a top of the build plate when the first structures are in a closed configuration. The first structures can transition to an open configuration to expose paths for allowing the unfused powder to pass through the build plate, and a second structure for preventing the build piece from passing through the build plate when the first structures are in the open configuration. In various embodiments, the unfused powder can thereafter be replaced with cool powder to assist in forming a predictable microstructure that makes up the build piece.
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