Devices and Methods for Performing Shear-Assisted Extrusion and Extrusion Processes

    公开(公告)号:US20230042802A1

    公开(公告)日:2023-02-09

    申请号:US17957207

    申请日:2022-09-30

    Abstract: The present disclosure provides methods for preparing an extruded product from a solid billet. The methods can include providing an as-cast billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the as-cast billet to plasticize the as-cast billet; and extruding the plasticized as-cast billet with an extrusion die to form an extruded product. Methods for preparing extruded products from billets can also include: providing a billet for extrusion; while maintaining a majority of the billet below 100° C., applying a simultaneous rotational shear and axial extrusion force to one end of the billet to plasticize the one end of the billet; and extruding the plasticized one end of the billet with an extrusion die to form an extruded product. Methods for preparing an extruded product from a billet can also include providing a billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the billet to plasticize the billet; extruding the plasticized billet with an extrusion die to form an extruded product; and artificially aging the extruded product for less than the ASTM recommended amount of time.

    SHEAR-ASSISTED EXTRUSION CONFIGURATIONS

    公开(公告)号:US20250041919A1

    公开(公告)日:2025-02-06

    申请号:US18793191

    申请日:2024-08-02

    Abstract: A shear-assisted extrusion process and related apparatus can include establishing a rotational shearing force and an axial extrusion force at an interface where a face of a die tool engages with a face of a portion of billet or other feedstock material, and extruding the portion of feedstock material through an opening of the die tool in response to establishing the rotational shearing force and the axial extrusion force. The die tool can be rotated at a different rate than the feedstock material prior to extrusion of the feedstock material through the opening of the die tool. A number of configurations can be used to provide the rotational shearing force and/or the axial extrusion force, as described herein.

    MULTI-AXIS SHEAR-ASSISTED EXTRUSION MACHINE

    公开(公告)号:US20250041920A1

    公开(公告)日:2025-02-06

    申请号:US18793394

    申请日:2024-08-02

    Abstract: A system for performing shear-assisted extrusion can include a front fixed endstock and a rear fixed endstock. The system can include a front movable headstock and a rear movable headstock. The system can include a die tool connected to the front fixed endstock. The die tool can include a face configured to engage and plasticize a face of feedstock material. The die tool can define an opening to receive plasticized feedstock material therethrough. The system can include a front spindle supported by the front movable headstock. The front spindle can be rotatable to rotate the feedstock material with respect to the front movable headstock. The system can include a rear spindle connected to the rear movable headstock, the rear spindle rotatable with respect to the rear movable headstock and the die tool.

    Devices and methods for performing shear-assisted extrusion and extrusion processes

    公开(公告)号:US12186791B2

    公开(公告)日:2025-01-07

    申请号:US17033854

    申请日:2020-09-27

    Abstract: Shear-assisted extrusion processes for forming extrusions of a desired composition from a feedstock material are provided. The processes can include applying a rotational shearing force and an axial extrusion to the same location on the feedstock material. Devices for this can include a die tool defined by a die face extending from a rim of the die face inwardly at an angle greater than zero in relation to a sidewall of the die tool in at least one cross section; and/or a die tool defining an opening configured to receive feedstock material for extrusion and further defining a die face defining a recess within the die face and contiguous with the opening. Shear-assisted extrusion processes are also provided that can mix different portions of the feedstock material within a recess about the opening prior to feedstock material entering the opening; and extruding the mixed portions.

    Shear Assisted Extrusion Apparatus, Tools, and Methods

    公开(公告)号:US20240009725A1

    公开(公告)日:2024-01-11

    申请号:US17857951

    申请日:2022-07-05

    CPC classification number: B21C25/02 B21C23/001 B21C23/085

    Abstract: Shear assisted extrusion apparatus, tools, inserts, and/or methods are provided. The apparatuses can include: an extrusion receiving channel operably engaged with a tool to receive extruded material; and one or more openings aligned between the spindle ends, the openings configured to convey fluid to the extruded product. Example tools can include one or more openings aligned between the tool ends. Example methods can include quenching plasticized feed material before exiting the spindle. A spindle assembly and/or tool assembly inserts are also provided that can include a sleeve extending within one or both of the spindle assembly or tool assembly of the apparatus; and openings within the sleeve configured to convey fluid to within one or both of the receiving channel of the spindle assembly or the tool assembly.

    Devices and Methods for Performing Shear-Assisted Extrusion and Extrusion Processes

    公开(公告)号:US20230150022A1

    公开(公告)日:2023-05-18

    申请号:US18093636

    申请日:2023-01-05

    Abstract: A method for preparing a shear-assisted extruded material from a powder billet is provided, the method comprising providing a billet of material in substantially powder form; applying both axial and rotational pressure to the material to deform at least some of the contacted material; and extruding the material to form an extruded material. A method for preparing shear-assisted extruded material is provided, the method comprising applying both axial and rotational pressure to stock material to form an extruded material at a rate between 2 and 13 m/min. A method for preparing shear-assisted extruded material is provided. The method comprises applying both axial and rotational pressure to stock material to form an extruded material; and aging the extruded material for less than 3 hours. A method for preparing shear-assisted extruded material is provided. The method comprises providing a stock material for shear-assisted extrusion; and applying both axial and rotational force to the stock material to form an extruded material, wherein the axial force does not decrease during the extrusion.

    Devices and Methods for Performing Shear-Assisted Extrusion and Extrusion Processes

    公开(公告)号:US20210379638A1

    公开(公告)日:2021-12-09

    申请号:US17242166

    申请日:2021-04-27

    Abstract: The present disclosure provides methods for preparing an extruded product from a solid billet. The methods can include providing an as-cast billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the as-cast billet to plasticize the as-cast billet; and extruding the plasticized as-cast billet with an extrusion die to form an extruded product. Methods for preparing extruded products from billets can also include: providing a billet for extrusion; while maintaining a majority of the billet below 100° C., applying a simultaneous rotational shear and axial extrusion force to one end of the billet to plasticize the one end of the billet; and extruding the plasticized one end of the billet with an extrusion die to form an extruded product. Methods for preparing an extruded product from a billet can also include providing a billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the billet to plasticize the billet; extruding the plasticized billet with an extrusion die to form an extruded product; and artificially aging the extruded product for less than the ASTM recommended amount of time.

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