公开(公告)号：US20220170138A1

公开(公告)日：2022-06-02

申请号：US17109746

申请日：2020-12-02

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Dale A. Gerard ,  Devin R. Hess ,  Herbert W. Doty ,  Daniel J. Wilson

IPC: C22C21/16 ,  F02F1/24 ,  B22F5/00 ,  B22F1/00 ,  B22F3/105

Abstract: An aluminum alloy is disclosed that is suitable for casting and additive manufacturing processes. The aluminum alloy may be used in the casting and additive manufacturing of engine blocks and/or cylinder heads of modern internal combustion engines. The aluminum alloy exhibits improved ductility and fatigue properties suitable for elevated operating temperatures from about 250° C. to 350° C. The alloy includes about, by weight, 4-10% Copper (Cu), 0.1-1.0% Manganese (Mn), 0.2 to 5% Magnesium (Mg), 0.01-1.0% Cerium (Ce), 0.01-2% Nickel (Ni), 0.01-0.8% Chromium (Cr), 0.01-1.0% Zirconium (Zr); 0.01-1.0% Vanadium (V), 0.01-0.3% Cobalt (Co), 0.01-1.0% Titanium (Ti), 1-200 ppm Boron (B), 1-200 ppm Strontium (Sr), 0.5% max Iron (Fe), 0.1% max other trace elements, and balance of aluminum (Al).

公开(公告)号：US20200340090A1

公开(公告)日：2020-10-29

申请号：US16394394

申请日：2019-04-25

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Wenying Yang ,  Qigui Wang ,  Dale A. Gerard

IPC: C22F1/04 ,  B22D17/00 ,  B22D19/00 ,  C23C4/10

Abstract: A wear-resistant component includes a substrate formed from a metal, defining a bore, and having a bore surface. The substrate includes a first region having a first microstructure adjacent the bore surface and a first average particle size. The substrate also includes a second region having a second microstructure adjacent the first microstructure and a second average particle size. The first average particle size is larger than the second average particle size. A system and a method of forming the wear-resistant coating are also described.

公开(公告)号：US20190323448A1

公开(公告)日：2019-10-24

申请号：US15956805

申请日：2018-04-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jianghuai Yang ,  Qigui Wang ,  Benjamin E. Slattery ,  Melani R. Wright ,  Huaxin Li ,  Dale A. Gerard ,  Daniel J. Wilson

IPC: F02F1/00 ,  B22D19/08 ,  B22D19/00 ,  B22D13/10

Abstract: A method of manufacturing a cylinder liner for an engine block for a vehicle propulsion system and the cylinder liner made from the method. The method includes providing a cylinder liner mold having a cylindrical inner surface, masking a first portion of the cylindrical inner surface, applying a coating to a second portion of the cylindrical inner surface, and forming a cylinder liner by solidifying molten metal in the cylinder liner mold.

公开(公告)号：US20190119809A1

公开(公告)日：2019-04-25

申请号：US15789052

申请日：2017-10-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  Dale A. Gerard ,  Richard D. Ricchi

IPC: C23C14/58 ,  C23C24/00 ,  C23C14/02 ,  C23C14/28 ,  C23C14/16 ,  F02F3/10

Abstract: A method for depositing a coating of a first metal on a second metal component includes applying a first laser beam to a surface of the second metal to remove a portion of an oxide layer from the surface, and applying a second laser beam to deposit a coating of a first metal on the surface immediately following the first laser beam and a component made by the method.

公开(公告)号：US20160018315A1

公开(公告)日：2016-01-21

申请号：US14335974

申请日：2014-07-21

Applicant: GM Global Technology Operations LLC

Inventor： Yucong Wang ,  Dale A. Gerard

IPC: G01N19/04

CPC classification number: G01N19/04 ,  G01N3/567

Abstract: Adhesion testing of coatings to the cylinder bore of an engine block. An adhesion testing fluid is dispensed from a nozzle that simultaneously rotates so that the fluid impinges about a substantial inner periphery defined by the coated cylinder bore. The performance of a referee coated engine block is used to provide parameters for one or more production-oriented engine blocks. This allows for rapid evaluation of a sizable sample of such production-oriented engine blocks. The fluid-dispensing nozzle is configured to simultaneously provide complete circumferential coverage of the cylinder bore with high-pressure/high-velocity fluid through rotational movement of the nozzle within the bore. By keeping the production-oriented engine blocks stationary during the test further improves testing efficiency.

Abstract translation: 发动机缸体气缸孔的涂层粘附试验。 粘合测试流体从同时旋转的喷嘴分配，使得流体围绕由涂覆的气缸孔限定的基本内周。 使用裁判涂覆的发动机缸体的性能来为一个或多个面向生产的发动机缸体提供参数。 这允许快速评估这种面向生产的发动机缸体的相当大的样品。 流体分配喷嘴构造成通过喷嘴在孔内的旋转运动，同时提供具有高压/高速流体的气缸孔的完整圆周覆盖。 通过在测试过程中保持生产导向的发动机缸体静止，进一步提高了测试效率。

公开(公告)号：US20240191326A1

公开(公告)日：2024-06-13

申请号：US18064980

申请日：2022-12-13

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Liang Wang ,  Daniel J. Wilson ,  Dale A. Gerard ,  Devin R. Hess ,  Paul Boone

IPC: C22C21/02 ,  B22D17/00 ,  B22D21/00

CPC classification number: C22C21/02 ,  B22D17/00 ,  B22D21/007

Abstract: An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.

公开(公告)号：US11986879B2

公开(公告)日：2024-05-21

申请号：US17719737

申请日：2022-04-13

Applicant: GM Global Technology Operations LLC

Inventor： Liang Wang ,  Qigui Wang ,  Dale A. Gerard ,  Steven L. Burkholder ,  Ronald C. Daul

IPC: B22C3/00 ,  B22C9/02 ,  B22C9/06 ,  B22C9/10 ,  B22D15/02

CPC classification number: B22D15/02 ,  B22C3/00 ,  B22C9/02 ,  B22C9/061 ,  B22C9/101

Abstract: A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.

公开(公告)号：US20240058860A1

公开(公告)日：2024-02-22

申请号：US17820683

申请日：2022-08-18

Applicant: GM Global Technology Operations LLC

Inventor： Lokesh Choudhary ,  Qigui Wang ,  Tiruttani Munikamal ,  Steven L. Burkholder ,  Thomas W. Gustafson ,  Dale A. Gerard

IPC: B22D15/04 ,  C22C37/10

CPC classification number: B22D15/04 ,  C22C37/10

Abstract: A hybrid chill with enhanced heat transfer for casting of a sand cast aluminum engine block of a vehicle is provided. The hybrid chill comprises a base comprising an outer wall having a first side and a second side. Each of the first and second sides extends from a first longitudinal end to an opposite second longitudinal end. The outer wall is closed to define a hollow portion. The base further comprises a heat transfer fluid in a liquid phase disposed in the hollow portion. The heat transfer fluid has a boiling point of between 320° C. and 400° C. at 1 bar for enhanced heat transfer during casting. The chill further comprises a plurality of crankcase members. Each member is disposed on the first side. Each member is spaced apart from a respective adjacent member defining an open recess.

公开(公告)号：US20230330744A1

公开(公告)日：2023-10-19

申请号：US17719737

申请日：2022-04-13

Applicant: GM Global Technology Operations LLC

Inventor： Liang Wang ,  Qigui Wang ,  Dale A. Gerard ,  Steven L. Burkholder ,  Ronald C. Daul

IPC: B22D15/02 ,  B22C9/06 ,  B22C9/10 ,  B22C3/00 ,  B22C9/02

CPC classification number: B22D15/02 ,  B22C9/061 ,  B22C9/101 ,  B22C3/00 ,  B22C9/02

Abstract: A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.

公开(公告)号：US20220355410A1

公开(公告)日：2022-11-10

申请号：US17307277

申请日：2021-05-04

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  MingFeng Shi ,  Jatinder Paul Singh ,  Dale A. Gerard

IPC: B23K11/16 ,  B23K11/11 ,  B23K11/24 ,  B23K35/30 ,  B23K35/02 ,  C22C19/03

Abstract: A system for increasing joint strength and reducing embrittlement in a resistance spot weld of metal workpieces is disclosed. The system comprises a stackup of first and second metal workpieces, and an interface member disposed between the first and second metal workpieces. The interface member comprises a peripheral wall defining a hollow inner portion. The peripheral wall has a first open end extending to a second open end. The first open end is in contact with the first metal workpiece defining a first weld portion thereon. The second open end is in contact with the second metal workpiece defining a second weld portion thereon. The system further comprises a first electrode configured to contact the first metal workpiece to heat the peripheral wall at the first weld portion and join the first metal workpiece with the first open end of the peripheral wall. The system further comprises a second electrode configured to contact the second metal workpiece to heat the peripheral wall at the second weld portion and join the second metal workpiece with the second open end of the peripheral wall to define a weld joint. The system further comprises a power source configured to power the first and second electrodes and a controller configured to control the power to the first and second electrodes to heat the peripheral wall.