公开(公告)号：US20190119793A1

公开(公告)日：2019-04-25

申请号：US15792440

申请日：2017-10-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yang Guo ,  Ming Liu ,  Anil K. Sachdev

IPC: C22C23/02

CPC classification number: C22C23/02

Abstract: Magnesium-aluminum corrosion-resistant alloys are provided and include magnesium, aluminum, germanium, small amounts of cathodic reaction active site impurities such as iron, copper, nickel, and cobalt, manganese, and optionally tin. The alloy can include up to about 0.75% germanium, at least about 2.5% aluminum, up to about 2.25% tin, at most 0.0055% iron impurities, and at most 0.125% silicon impurities. The ratio of germanium to iron can be less than 150. The ratio of manganese to iron can be at least 75. The alloy can comprise one or more intermetallic complexes, including magnesium-germanium, magnesium-aluminum, and aluminum-manganese internietallic complexes.

公开(公告)号：US20190115004A1

公开(公告)日：2019-04-18

申请号：US16213135

申请日：2018-12-07

Applicant: GM Global Technology Operations LLC

Inventor： Anil K. Sachdev ,  Raja K. Mishra ,  Jon T. Carter ,  Tyson W. Brown ,  Blair E. Carlson ,  David R. Sigler ,  Robert N. Saje ,  Matthew P. Simonin

IPC: G10K11/168 ,  B32B15/01 ,  B32B27/08 ,  B32B27/32 ,  B62D25/04 ,  B62D25/10 ,  B60R13/08 ,  B60R7/06 ,  B62D21/00 ,  F16M13/02

Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.

公开(公告)号：US10145271B2

公开(公告)日：2018-12-04

申请号：US15421795

申请日：2017-02-01

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Michael B. Fleck ,  Ronald B. Beals ,  Kevin M. Luchansky

IPC: F01L1/18 ,  F01L1/46

Abstract: A monolithic rocker arm component includes a first lateral wall defining a first aperture and a first mass reducing feature, an opposing second wall defining a second aperture and a second mass reducing feature, a pushrod receiving member that bridges the first lateral wall and the second lateral wall at a first end of the rocker arm, and a tongue element that bridges the first lateral wall and the second lateral wall at a second end of the rocker arm. The pushrod receiving member routes oil from the first towards the second end. The monolithic rocker arm may have one or more internal regions having lattice structures. Methods for additive manufacturing the monolithic rocker component are also provided.

公开(公告)号：US20180216205A1

公开(公告)日：2018-08-02

申请号：US15417921

申请日：2017-01-27

Applicant: GM Global Technology Operations LLC

Inventor： Jianfeng Wang ,  Qi Lu ,  Anil K. Sachdev

IPC: C21D9/00 ,  C23C2/06 ,  C23C2/40 ,  C23C2/28 ,  C22C38/04 ,  C21D8/00 ,  C21D1/18 ,  B21D22/02

CPC classification number: C21D9/0068 ,  B21D22/022 ,  B21D35/005 ,  B32B15/013 ,  C21D1/18 ,  C21D6/005 ,  C21D8/005 ,  C21D2211/001 ,  C21D2211/008 ,  C22C38/04 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

Abstract: Methods for press hardening steel alloys comprised of medium-Mn are provided. The press-hardened steel alloy may have an ultimate tensile strength (UTS) of at least 1,700 MPa and a tensile elongation of at least 8%. The press-hardened steel alloy may be formed in two forming steps above the martensitic finish temperature. The press-hardened steel may have a microstructure comprising martensite at greater than or equal to about 80% to less than or equal to about 98% and retained austenite at less than or equal to about 20% to greater than or equal to about 2%.

公开(公告)号：US10023239B2

公开(公告)日：2018-07-17

申请号：US15173149

申请日：2016-06-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nilesh D. Mankame ,  Hanif Muhammad ,  Louis G. Hector, Jr. ,  Anil K. Sachdev

IPC: B60K7/00 ,  B62D25/12 ,  B62D25/10 ,  F16F7/12 ,  B60R21/34 ,  B60R19/02 ,  B60R19/03 ,  B60R19/18

Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

公开(公告)号：US20170363040A1

公开(公告)日：2017-12-21

申请号：US15184434

申请日：2016-06-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Alin C. Dragoiu ,  Vincent V. Tiaga

IPC: F02F3/22 ,  F16J1/00 ,  F16J9/00 ,  F02F3/00

CPC classification number: F02F3/22 ,  F02F2003/0007 ,  F16J1/001 ,  F16J1/16 ,  F16J9/00

Abstract: An integrally formed piston has a crown portion having an upper crown surface and an undercrown surface. A ring belt extends from the undercrown surface at a periphery thereof. The ring belt includes an uppermost ring land and at least one oil galley contoured to extend around at least two surfaces of the uppermost ring land. The oil galley has an opening at the undercrown surface for receiving a cooling fluid therein for cooling the uppermost ring land. A skirt extends from the undercrown surface and the ring belt and has a plurality of stiffening features arranged in a truss formation. At least one of the plurality of stiffening features has an I-beam cross-section and another of the plurality of stiffening features has a negative draft angle.

公开(公告)号：US09481034B2

公开(公告)日：2016-11-01

申请号：US14099474

申请日：2013-12-06

Applicant: GM Global Technology Operations LLC

Inventor： Yiqing Chen ,  Aihua A. Luo ,  Anil K. Sachdev

IPC: B22D19/00 ,  B22D19/16

CPC classification number: B22D19/0081 ,  B22D19/16

Abstract: Methods of forming bi-metallic castings are provided. In one method, a metal preform of a desired base shape is provided defining a substrate surface. A natural oxide layer is removed from the substrate surface, yielding a cleaned metal preform. The method includes forming a thin metallic film on at least a portion of the substrate surface of the cleaned metal preform, and metallurgically bonding the portion of the metal preform having the metallic film with an overcast metal to form a bi-metallic casting. The metallic film promotes a metallurgical bond between the metal preform and the overcast metal. In one aspect, the metal preform may include aluminum (Al) and the metallic film may include zinc (Zn).

Abstract translation: 提供了形成双金属铸件的方法。 在一种方法中，提供限定衬底表面的所需基底形状的金属预制件。 从衬底表面去除自然氧化物层，产生清洁的金属预制件。 该方法包括在清洁的金属预制件的基材表面的至少一部分上形成薄金属膜，并且将具有金属膜的金属预制件的部分与阴极金属冶金结合以形成双金属铸件。 金属膜促进金属预型件和阴极金属之间的冶金结合。 在一个方面，金属预成型件可以包括铝（Al），并且金属膜可以包括锌（Zn）。

公开(公告)号：US09381879B2

公开(公告)日：2016-07-05

申请号：US14539132

申请日：2014-11-12

Applicant: GM Global Technology Operations LLC

Inventor： Nilesh D. Mankame ,  Hanif Muhammad ,  Louis G. Hector, Jr. ,  Anil K. Sachdev

IPC: B60J7/00 ,  B60R19/02 ,  B60R19/03 ,  B60R19/18 ,  B62D25/10

CPC classification number: B62D25/12 ,  B60R19/023 ,  B60R19/03 ,  B60R19/18 ,  B60R21/34 ,  B60R2019/182 ,  B60R2021/343 ,  B62D25/105 ,  F16F7/12

Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

Abstract translation: 覆盖下层物体的车罩包括面向底座物体的车辆罩的内表面并与底座物体间隔开，车辆罩的外表面与内表面相对。 局部能量吸收器可操作地附接到车辆罩的内表面。 当地的能量吸收器是一个多重连接的结构。 局部能量吸收器包括限定内部表面的壁，所述内表面具有围绕与车辆罩的内表面垂直的中心平面对称的内表面。 围绕中心平面对称地在壁中限定多个孔，以在施加到外表面的冲击期间在壁中起始弯曲和断裂，限定持续时间小于20毫秒的冲击事件。

公开(公告)号：US09093705B2

公开(公告)日：2015-07-28

申请号：US13837898

申请日：2013-03-15

Applicant: GM Global Technology Operations LLC

Inventor： Xingcheng Xiao ,  Anil K. Sachdev ,  Mark W. Verbrugge

IPC: H01M4/38 ,  C01B33/021 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/386 ,  C01B33/021 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54

Abstract: Porous, amorphous lithium storage materials and a method for making these materials are disclosed herein. In an example of the method, composite particles of a lithium storage material in an amorphous phase and a material that is immiscible with the lithium storage material are prepared. Phase separation is induced within the composite particles to precipitate out the amorphous phase lithium storage material and form phase separated composite particles. The immiscible material is chemically etched from the phase separated composite particles to form porous, amorphous lithium storage material particles.

Abstract translation: 本文公开了多孔非晶锂储存材料及其制备方法。 在该方法的一个实例中，制备非晶相中的锂储存材料的复合颗粒和与锂储存材料不混溶的材料。 在复合颗粒内诱发相分离，沉淀出非晶相锂储存材料并形成相分离的复合颗粒。 从相分离的复合颗粒化学蚀刻不混溶的材料，以形成多孔的无定形锂储存材料颗粒。

公开(公告)号：US20150151359A1

公开(公告)日：2015-06-04

申请号：US14096527

申请日：2013-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bin Hu ,  Jeff Wang ,  Xin Yang ,  Anil K. Sachdev

IPC: B22D19/02 ,  B22D17/22 ,  B60J5/04 ,  B22D29/00 ,  B22D21/00 ,  B22D25/02 ,  B22D17/00 ,  B22D19/00

CPC classification number: B22D19/02 ,  B22C9/08 ,  B22D17/22 ,  B22D19/0081 ,  B22D21/007 ,  B22D25/02 ,  B60J5/045 ,  B60J5/0455 ,  B60J5/0458 ,  B60J5/0466 ,  B60J5/0483

Abstract: A method for manufacturing an inner door panel for a vehicle side door that employs a die casting process. The method includes providing a die cast mold having opposing mold halves that combine to define a die cavity configured to provide the inner door panel having an integrated impact beam. The mold cavity also includes channels that form a runner and gating system that causes the molten material to form an outer frame defining a central opening that allows the mold halves to be separated when the door panel has hardened within the mold.

Abstract translation: 一种用于制造车门侧门的内门板的方法，该车门侧门采用压铸工艺。 该方法包括提供具有相对的半模的压铸模具，其组合以限定被配置为提供具有集成冲击梁的内门板的模腔。 模具腔还包括形成流道和浇注系统的通道，其使得熔融材料形成限定中心开口的外框架，当门板在模具内硬化时允许半模分离。