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公开(公告)号：US10335851B2
公开(公告)日：2019-07-02
申请号：US15494774
申请日：2017-04-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Daniel J Wilson , James D Cremonesi
Abstract: A sand casting apparatus, a method of forming a sand casting apparatus, and an automotive component are provided. The sand casting apparatus includes a sand casting base including a sand mold and/or a sand core having a base sand mixture, where the base sand mixture includes a sand material and a binder material. The sand casting apparatus further includes an outer layer disposed on the sand casting base. The outer layer includes silicon, magnesium, calcium, zirconium, manganese, carbon, aluminum, and iron. The automotive component has portions defining an aperture therein. The automotive component is formed of cast iron and has a nodular graphite structure from interior matrix to surface, where the nodular graphite structure on the surface is formed by a sand core having an outer layer that has reacted with the cast iron automotive component to form the nodular graphite structured surface.
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公开(公告)号：US10662891B2
公开(公告)日：2020-05-26
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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公开(公告)号：US20190161838A1
公开(公告)日：2019-05-30
申请号：US15824704
申请日：2017-11-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Daniel J Wilson , James D Cremonesi
IPC: C22C38/60 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/06 , C22C38/02 , C21D1/20
Abstract: A high-strength steel alloy and automotive components produced therefrom, as well as a method for forming a steel alloy, are provided. The high-strength steel alloy includes iron, about 0.24 to about 0.80 weight percent carbon, about 0.40 to about 2.10 weight percent manganese, about 0.20 to about 1.60 weight percent silicon, about 0.05 to about 0.14 weight percent sulfur; about 0.10 to about 12.0 weight percent chromium, about 0.10 to about 2.50 weight percent nickel, and about 0.02 to about 0.07 weight percent aluminum. The steel alloy may also include boron, molybdenum, titanium, niobium, and/or nitrogen. The method includes air quenching a steel alloy component after mold shakeout until the component reaches a temperature in the range of 420 to 530 degrees Celsius.
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Patent Agency Ranking
公开(公告)号：US20190024708A1
公开(公告)日：2019-01-24
申请号：US15655002
申请日：2017-07-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J Wilson , Jianghuai Yang , James D Cremonesi , Qigui Wang
Abstract: A bearing shell for an automotive propulsion system is provided, along with a crankshaft assembly and an engine having a bearing shell. The bearing shell comprises an inner layer having an inner layer thickness. The inner layer defines a bearing surface on an inner side. The bearing surface of the inner layer is configured to support and contact an oil film. The bearing shell also has an outer layer disposed around the inner layer and radially outward of the inner layer. The outer layer has an outer layer thickness that is greater than the inner layer thickness, the outer layer thickness being at least one millimeter. The outer layer is formed of an outer layer material comprising an aluminum alloy and/or a metal matrix composite material. The inner layer is formed of an inner layer material, wherein the outer layer material is stronger than the inner layer material.
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公开(公告)号：US20190126386A1
公开(公告)日：2019-05-02
申请号：US15797147
申请日：2017-10-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Daniel J Wilson
IPC: B23K20/227 , B23K20/12 , C23C30/00
Abstract: A method for welding a first component to a second component includes providing a first component of a first alloy and having coating of a second alloy on a face of the first component, and solid state welding a second component of a third alloy to the coating of the first component. The second alloy includes only non-ferrous compounds.
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公开(公告)号：US20190099836A1
公开(公告)日：2019-04-04
申请号：US15723272
申请日：2017-10-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Liang Wang , Qigui Wang , Daniel J Wilson
IPC: B23K26/342 , B33Y10/00 , B33Y40/00 , B23K26/12 , B23K26/144 , B23K15/00 , B23K9/04
Abstract: A method for additive manufacturing of an article using pressurizing gas in an enclosure including introducing additive manufacturing equipment into the enclosure before sealing and removing air from the sealed enclosure to obtain a predetermined oxygen threshold. Next, the sealed enclosure is pressurized to obtain a predetermined pressure threshold using an inert gas. When the predetermined pressure threshold is obtained, the article is constructed using additive manufacturing.
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公开(公告)号：US20180372146A1
公开(公告)日：2018-12-27
申请号：US15632722
申请日：2017-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Daniel J Wilson
Abstract: A fine grain steel alloy and automotive components produced therefrom are provided. The fine grain steel alloy includes iron, about 0.20 to about 0.60 weight percent carbon, about 1.80 to about 2.50 weight percent manganese, about 0.20 to about 1.20 weight percent silicon, and about 0.10 to about 0.25 weight percent of a transition metal, where the transition metal is vanadium, niobium, or a combination of vanadium and niobium. The fine grain steel alloy may also include about 0.60 to about 1.50 weight percent chromium, about 0.01 to about 0.20 weight percent aluminum, and about 0.01 to about 0.20 weight percent titanium.
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公开(公告)号：US20180304346A1
公开(公告)日：2018-10-25
申请号：US15494774
申请日：2017-04-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Daniel J Wilson , James D Cremonesi
CPC classification number: B22C9/22 , B22C3/00 , B22C9/02 , B22C9/10 , B22D25/02 , B22D25/06 , F16C3/08 , F16C2220/02
Abstract: A sand casting apparatus, a method of forming a sand casting apparatus, and an automotive component are provided. The sand casting apparatus includes a sand casting base comprising a sand mold and/or a sand core comprising a base sand mixture, where the base sand mixture includes a sand material and a binder material. The sand casting apparatus further comprises an outer layer disposed on the sand casting base. The outer layer comprises silicon, magnesium, calcium, zirconium, manganese, carbon, aluminum, and iron. The automotive component has portions defining an aperture therein. The automotive component is formed of cast iron and has a nodular graphite structure from interior matrix to surface, where the nodular graphite structure on the surface is formed by a sand core having an outer layer that has reacted with the cast iron automotive component to form the nodular graphite structured surface.
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