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公开(公告)号：US20220097159A1
公开(公告)日：2022-03-31
申请号：US17034373
申请日：2020-09-28
Applicant: GM Global Technology Operations LLC
Inventor： Jason L. Austin , Dale A. Gerard
IPC: B23F5/20
Abstract: A method to form a gear for motor vehicles includes one or more of the following: placing a blank between a first tool member and a second tool member, each of the first tool member and the second tool member having a set of teeth; and moving the first tool member and the second tool member towards the blank while rotating the first tool member and the second tool member to form a gear with a set of teeth from the blank. Each tooth of the set of teeth has a topography that varies tooth-to-tooth.
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公开(公告)号：US20220088671A1
公开(公告)日：2022-03-24
申请号：US17024919
申请日：2020-09-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dale A. Gerard , Qigui Wang , Tyson W. Brown , Ali Shabbir , Anil K. Sachdev
Abstract: A high heat-absorption casting core for manufacturing a cast component includes a core body. The core body has at least a portion thereof defined by metal powder. The metal powder is configured to absorb heat energy from the cast component during cooling of the component and solidification thereof. The core body may be additionally defined by a sand fraction in contact with the metal powder fraction. A system and a method for manufacturing a cast component using the high heat-absorption casting core are also envisioned.
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13.发明申请公开(公告)号：US20220082035A1
公开(公告)日：2022-03-17
申请号：US17021417
申请日：2020-09-15
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Jeffrey Harris , Herbert W. Doty , Dale A. Gerard
Abstract: A cylinder head valve seat of an automobile vehicle includes a valve seat having a valve seat surface integrally joined to an engagement end. The engagement end includes multiple materials extending through a cross section of the engagement end. The multiple materials include: a first material having a first thermal conductivity; and a second material having a second thermal conductivity higher than the thermal conductivity of the first material, wherein the first material transitions into the second material.
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公开(公告)号：US20210047981A1
公开(公告)日：2021-02-18
申请号：US16539269
申请日：2019-08-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Dale A. Gerard
Abstract: A method of forming an engine component includes providing a cylinder liner main body having a curved interior wall forming a cylinder bore extending along a bore axis and a curved exterior wall formed circumferentially about the curved interior wall. The method includes disposing a coating layer onto the interior wall and the exterior wall. A cylinder liner is provided that includes a main body and a coating layer disposed on an exterior wall and on an interior wall of the main body.
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公开(公告)号：US20180283310A1
公开(公告)日：2018-10-04
申请号：US15478741
申请日：2017-04-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Daniel J. Wilson , Martin S. Kramer , Dale A. Gerard
Abstract: An engine block, an automotive structure, and a method of coating an inner surface of an engine cylinder bore of an engine cylinder are provided. The method includes providing an inner bore substrate defining an inner surface of the engine cylinder bore, the inner bore substrate being formed of a first material. The method further includes disposing a thermal spray coating onto the inner surface of the engine cylinder bore. The thermal spray coating is formed of a second material that is different than the first material. The method also includes melting at least a portion of the thermal spray coating with a laser after performing the step of disposing the thermal spray coating onto the inner surface of the engine cylinder bore. The automotive structure and the engine block have a substrate covered by a thermal spray coating and laser remelted sections anchoring the coating to the substrate.
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Patent Agency Ranking
公开(公告)号：US09574252B2
公开(公告)日：2017-02-21
申请号：US14174240
申请日：2014-02-06
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Dale A. Gerard
CPC classification number: C22B21/02 , C22B21/062
Abstract: A method of reducing entrained aluminum oxides in aluminum castings. The method comprises preheating a furnace charge to remove moisture and contaminants. The furnace charge is then coated on all free surfaces with a layer of flux. Subsequently the furnace charge is melted in a furnace to form a melt bath of liquid aluminum suitable for casting. The flux layer removes the naturally occurring oxide film from the furnace charge surface as well as provides a cover flux to protect the melt bath from oxidation.
Abstract translation: 一种减少铝铸件中夹带的氧化铝的方法。 该方法包括预热炉装料以除去水分和污染物。 然后将炉装料用一层焊剂涂覆在所有自由表面上。 随后，炉装料在炉中熔化以形成适于铸造的液态铝的熔池。 助焊剂层从炉料表面除去天然存在的氧化膜，并提供覆盖助熔剂以保护熔融液免于氧化。
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17.发明申请PHOSPHATING OR ANODIZING FOR IMPROVED BONDING OF THERMAL SPRAY COATING ON ENGINE CYLINDER BORES 审中-公开用于改善发动机缸体上喷涂热粘合剂的喷涂或阳极氧化公开(公告)号：US20160376690A1
公开(公告)日：2016-12-29
申请号：US14753152
申请日：2015-06-29
Applicant: GM Global Technology Operations LLC
Inventor： Yucong Wang , Dale A. Gerard
Abstract: An engine cylinder bore with an anodized or phosphated bondcoat and a method of coating the surface of an engine cylinder bore with an anodized or phosphated bondcoat prior to depositing a thermally sprayed protective coating. Cleaning or related pretreatment operations may also be used. In one preferred form, the cylinder bore is made from an aluminum-based alloy or a magnesium-based alloy, while the bondcoat forms a porous interface between the cylinder bore and the outermost protective coating. Additives may be placed into the anodizing or phosphating solution to promote adhesion and corrosion resistance.
Abstract translation: 具有阳极氧化或磷酸化键合涂层的发动机气缸孔，以及在沉积热喷涂保护涂层之前用阳极氧化或磷酸化粘合剂涂层涂覆发动机气缸孔表面的方法。 也可以使用清洁或相关的预处理操作。 在一个优选形式中，气缸孔由铝基合金或镁基合金制成，而粘结涂层在气缸孔和最外面的保护涂层之间形成多孔界面。 可以将添加剂放入阳极氧化或磷酸盐溶液中以促进粘附和耐腐蚀性。
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18.发明公开公开(公告)号：US20240181523A1
公开(公告)日：2024-06-06
申请号：US18060741
申请日：2022-12-01
Applicant: GM Global Technology Operations LLC
Inventor： Dale A. Gerard , Qigui Wang , Paul J. Boone
IPC: B22D17/20
CPC classification number: B22D17/203 , B22D17/2061
Abstract: A system and method of using a smart insert pin for making a casting for a vehicle, in which the casting includes a boss having internal threads. The system includes a mold and an insert pin insertable into the mold. The mold includes a portion of a mold cavity defining a boss shaped cavity and a bore in communication with the boss shaped cavity. The insert pin includes a first portion having external threads and a second portion extending from the first portion. The second portion of the insert pin is insertable into the bore with the first portion extending into the portion of the mold cavity defining the boss shaped cavity. The mold cavity is fill with a molten metal. The molten metal is cooled into a solidified casting. The insert pin is unfastened from the casting leaving a cast boss with an internal threaded bore.
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公开(公告)号：US20240123494A1
公开(公告)日：2024-04-18
申请号：US18045947
申请日：2022-10-12
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul J. Boone
Abstract: A high pressure die casting (HPDC) system for casting ultra-large single-piece castings for vehicles. The HPDC system includes a clear feeding path from at least one ingate to a predetermined thicker section of a mold cavity, a last to solidify ingate having an equivalent or larger feeding modulus than the highest feeding modulus of the other ingates, and thermal management elements. The clear feeding path, last to solidify ingate, and thermal management elements ensure sufficient supplemental molten metal flow to the thicker portion of the mold cavity to accommodate for shrinkage of the thicker portion of an ultra large casting during the casting and solidification process.
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20.发明公开公开(公告)号：US20230349342A1
公开(公告)日：2023-11-02
申请号：US17731365
申请日：2022-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Jeffrey B. Harris , Ante Tony Lausic , Paul J. Wolcott , Dale A. Gerard , Tyson Whittier Brown
CPC classification number: F02F3/0084 , B22F10/28 , B33Y10/00 , B33Y80/00 , F16J9/00 , F02F2200/00
Abstract: A method to manufacture an automobile vehicle engine aluminum piston, comprises: printing an aluminum piston crown portion including an additive manufacturing (AM) piston crown work piece using initial aluminum powders defining an initial aluminum powder bed; removing the aluminum piston crown portion from the initial aluminum powder bed; fixedly joining a cast iron ring carrier to the AM piston crown work piece; placing the aluminum piston crown portion together with the cast iron ring carrier into a secondary and a tertiary aluminum powder bed; and printing a piston skirt integrally connected to the AM piston crown work piece and to the cast iron ring carrier.
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