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    Lubrication system for warm forming
    13.
    发明授权
    Lubrication system for warm forming 有权
    润滑系统用于热成型

    公开(公告)号：US09302312B2

    公开(公告)日：2016-04-05

    申请号：US14174888

    申请日：2014-02-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Anil K. Sachdev ,  William R. Rodgers

    IPC: B21D37/18 ,  B21D22/02 ,  B21D35/00

    CPC classification number: B21D37/18 ,  B21D22/022 ,  B21D35/005

    Abstract: Sheet metal workpieces are preheated to a temperature in the range of about 100° C. to about 500° C. for warm forming between press-actuated forming dies. The forming dies are not heated, but are coated with a liquid lubricating material suitable for the forming of the preheated sheet metal workpiece. For example, the liquid lubricating material is suitably a halogenated hydrocarbon that will adhere to unheated die surfaces and serve in the forming of the sheet metal workpiece into a vehicle body panel or other product. But the liquid lubricating material is composed so as to evaporate from surfaces of the formed workpiece at a temperature below about 200° C., so that the workpiece does not have to be cleaned before it is decoratively finished. The lubricant material may be vaporized, for example, into a warm stream of air or nitrogen and carried to a recovery or disposal system.

    Abstract translation: 将钣金工件预热至约100℃至约500℃的温度，以在压制成型模具之间进行热成形。 成型模不加热，而是用适于形成预热的金属片工件的液体润滑材料涂覆。 例如，液体润滑材料适当地是将附着到未加热的模具表面上的卤化烃，并且用于将金属板件加工成车身板或其他产品。 但是液体润滑材料构成为在低于约200℃的温度下从形成的工件的表面蒸发，使得工件在装饰完成之前不必被清洁。 润滑剂材料可以例如蒸发成温暖的空气或氮气流并运送到回收或处理系统。

    LUBRICATION SYSTEM FOR WARM FORMING
    15.
    发明申请
    LUBRICATION SYSTEM FOR WARM FORMING 有权
    润滑成型润滑系统

    公开(公告)号：US20150224558A1

    公开(公告)日：2015-08-13

    申请号：US14174888

    申请日：2014-02-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Anil K. Sachdev ,  William R. Rodgers

    IPC: B21D37/18

    CPC classification number: B21D37/18 ,  B21D22/022 ,  B21D35/005

    Abstract: Sheet metal workpieces are preheated to a temperature in the range of about 100° C. to about 500° C. for warm forming between press-actuated forming dies. The forming dies are not heated, but are coated with a liquid lubricating material suitable for the forming of the preheated sheet metal workpiece. For example, the liquid lubricating material is suitably a halogenated hydrocarbon that will adhere to unheated die surfaces and serve in the forming of the sheet metal workpiece into a vehicle body panel or other product. But the liquid lubricating material is composed so as to evaporate from surfaces of the formed workpiece at a temperature below about 200° C., so that the workpiece does not have to be cleaned before it is decoratively finished. The lubricant material may be vaporized, for example, into a warm stream of air or nitrogen and carried to a recovery or disposal system.

    Abstract translation: 将钣金工件预热至约100℃至约500℃的温度，以在压制成型模具之间进行热成形。 成型模不加热，而是用适于形成预热的金属片工件的液体润滑材料涂覆。 例如，液体润滑材料适当地是将附着到未加热的模具表面上的卤化烃，并且用于将金属板件加工成车身板或其他产品。 但是液体润滑材料构成为在低于约200℃的温度下从形成的工件的表面蒸发，使得工件在装饰完成之前不必被清洁。 润滑剂材料可以例如蒸发成温暖的空气或氮气流并运送到回收或处理系统。

    METHODS FOR FABICATING HIGH CAPACITY ELECTRODES
    16.
    发明公开
    METHODS FOR FABICATING HIGH CAPACITY ELECTRODES 审中-公开

    公开(公告)号：US20230268478A1

    公开(公告)日：2023-08-24

    申请号：US17675884

    申请日：2022-02-18

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： William R. Rodgers ,  Cameron Christopher ROSE ,  Xiaosong HUANG

    IPC: H01M4/04

    CPC classification number: H01M4/0411

    Abstract: A method of fabricating an electrode is provided. The method includes adding one or more dry powders to an extruder barrel of an extruder at a first location, adding one or more solvents to the extruder barrel at a second location that is downstream of the first location to form a material mixture, applying a mixing force to the material mixture to form a paste, and extruding the paste as a continuous film onto one or more surfaces of a current collector to form the electrode. The one or more dry powders include an electroactive material. The paste is a homogeneous semi-solid having a solids content greater than or equal to about 60% to less than or equal to about 90%. The continuous film has a thickness greater than or equal to about 50 μm to less than or equal to about 500 μm.

    CHASSIS ASSEMBLY HAVING MIXED MATERIALS
    18.
    发明申请
    CHASSIS ASSEMBLY HAVING MIXED MATERIALS 有权

    公开(公告)号：US20230110672A1

    公开(公告)日：2023-04-13

    申请号：US17500613

    申请日：2021-10-13

    Applicant: GM Global Technology Operations LLC ,  Ftech R&D North America Inc.

    Inventor： Balbir Singh Sangha ,  Len V. Peschansky ,  Manish Pamwar ,  Fred M. Marquardt ,  William R. Rodgers ,  Bruce N. Greve ,  David Kennedy ,  Adrian Bica ,  Bikramjit Sarkaria

    IPC: B62D29/00 ,  B62D25/00

    Abstract: A chassis assembly having mixed material for reduced mass is provided. The assembly comprises an upper structure comprised of metal. The upper structure has a plurality of first bond surfaces, each of which is parallel with each other at varying elevations relative to a z-axis of a 3-dimensional coordinate thereof. The assembly further comprises a lower structure made of a polymer composite. The lower structure has a plurality of second bond surfaces, each of which is parallel with each other at varying elevations relative to the z-axis thereof. The second bond surfaces are arranged to align with the first bond surfaces in complementing relation such that the lower structure is joined with the upper structure at the first and second bond surfaces. The assembly further comprises an adhesive disposed between the first and second bond surfaces to join the lower and upper structures at the first and second bond surfaces, defining a bond gap between the first and second bond surfaces.

    Resin transfer molding systems and control logic for manufacturing fiber-reinforced composite parts
    19.
    发明授权
    Resin transfer molding systems and control logic for manufacturing fiber-reinforced composite parts 有权

    公开(公告)号：US11130295B2

    公开(公告)日：2021-09-28

    申请号：US16257801

    申请日：2019-01-25

    Applicant: GM Global Technology Operations LLC

    Inventor： William R. Rodgers ,  Venkateshwar R. Aitharaju

    IPC: B29C70/44 ,  B29C70/48 ,  H03K19/173 ,  B29C51/20

    Abstract: Presented are manufacturing control systems for fabricating composite-material structures, methods for making/operating such systems, and resin transfer molding techniques for ameliorating race-tracking effects in fiber-reinforced polymer panels. A method for forming a composite-material construction includes confirming, via a system electronic control unit (ECU), that a fiber-based preform is placed in a mold cavity and that opposing mold segments of the molding apparatus are sealed together. A filler, such as a compressible bladder, a cluster of spring-biased pins, or a spray-chopped fiber bed, is introduced into a void between the fiber-based preform and a tool face of one mold segment to thereby eliminate an unwanted resin race track. The system ECU commands a resin pump to inject resin through a primary gate of the molding apparatus and into the mold cavity to thereby impregnate the fiber-based preform with the resin. One or more vents operate to evacuate air from the mold.

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