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公开(公告)号：US20180016666A1
公开(公告)日：2018-01-18
申请号：US15212905
申请日：2016-07-18
Applicant: GM Global Technology Operations LLC
Inventor： Christopher D. Cogan , Qigui Wang , Maurice G. Meyer
IPC: C22F1/04 , F02F7/00 , F02F1/24 , B22C9/10 , B22C9/08 , B22D15/02 , B22C9/24 , B22D21/00 , B22D29/00
Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a mold assembly including a gating system, a head deck mold, and a mold cavity. Liquid aluminum alloy is pumped at low pressure into the gating system of the mold assembly filling the mold cavity. Next, the head deck mold is removed from the mold assembly and the head deck and combustion chambers of the cylinder head are quenched.
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公开(公告)号：US08418745B2
公开(公告)日：2013-04-16
申请号：US13648293
申请日：2012-10-10
Applicant: GM Global Technology Operations LLC
Inventor： Christopher D. Cogan , Stephen M. Fitch , Qigui Wang
IPC: B22D41/00
Abstract: A method of forming a casting using a casting apparatus is disclosed, the method including the steps of lowering a ladle having a hollow interior into a source of molten material and an aperture facilitating flow into the hollow interior, filling the interior of the ladle with the molten material through the aperture, introducing an inert gas into a portion of a nozzle, removing the ladle from the source of molten material, causing the nozzle to contact a casting mold, and pressurizing the hollow interior with an inert gas to cause the molten material to flow into the casting mold.
Abstract translation: 公开了一种使用铸造装置形成铸件的方法，该方法包括以下步骤：将具有中空内部的钢包放入熔融材料源中，以及促进流入中空内部的孔，并将其浇注到钢包的内部 熔融材料通过孔，将惰性气体引入喷嘴的一部分，从熔融材料源移除钢包，使喷嘴接触铸模，并用惰性气体对中空内部进行加压，以使熔融材料 流入铸模。
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公开(公告)号：US10898948B2
公开(公告)日：2021-01-26
申请号：US16376667
申请日：2019-04-05
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Christopher D. Cogan , Michael J. Walker , Garrold DeGrace , Thomas Gustafson , Dale Gerard
Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a precision sand core and mold assembly, a liquid aluminum alloy delivery system, and a mold manipulator system. The precision sand core and mold assembly is disposed in the mold manipulator system and the liquid aluminum alloy delivery system includes an in-furnace ultrasonic actuator and a launder tube having at least an ultrasonic actuator. The liquid aluminum alloy delivery system is sealed to the precision sand core and mold assembly and provides liquid aluminum alloy into a gating system of the precision sand core and mold assembly. The precision sand core and mold assembly is rotated approximately 180°. The precision sand core and mold assembly is vibrated.
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公开(公告)号：US09981310B2
公开(公告)日：2018-05-29
申请号：US14841752
申请日：2015-09-01
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Jason R. Traub , Christopher D. Cogan , Andrew J. Genualdi
CPC classification number: B22D27/08 , B22D1/007 , B22D21/04 , B22D25/02 , B22D35/04 , B22D41/00 , C22B9/026 , C22B21/06 , Y02P10/234
Abstract: A degassing and grain refinement system for a cast aluminum-based component and a method of achieving both hydrogen gas presence reduction and grain size reduction in a cast aluminum-based component. Ultrasonic vibrations are imparted to both the liquid metal travel path from its source to the mold to achieve the reduction in hydrogen gas in the molten metal, as well as to one or more locations within the mold to achieve relatively small and equiaxed grains in the component upon solidification.
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Patent Agency Ranking
公开(公告)号：US20170106434A1
公开(公告)日：2017-04-20
申请号：US14884259
申请日：2015-10-15
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Christopher D. Cogan
IPC: B22C9/08
CPC classification number: B22C9/088
Abstract: A method of improving riser feedability in semi-permanent mold casting is disclosed. The method includes providing a first receptacle fluidly connected to a mold cavity and providing a second receptacle fluidly connected to a riser. Further, the method includes delivering molten metal to the first receptacle and conveying the molten metal into the mold cavity through a sprue. Delivery of molten metal to the first receptacle is terminated when the mold cavity reaches a predetermined fill level delivery of molten metal to the second receptacle is initiated. In certain embodiments, the first receptacle and the second receptacle are combined into a single receptacle and the sprue is connected to the mold cavity through a lower runner and is connected to the riser through an upper runner.
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公开(公告)号：US20170056971A1
公开(公告)日：2017-03-02
申请号：US14841752
申请日：2015-09-01
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Jason R. Traub , Christopher D. Cogan , Andrew J. Genualdi
CPC classification number: B22D27/08 , B22D1/007 , B22D21/04 , B22D25/02 , B22D35/04 , B22D41/00 , C22B9/026 , C22B21/06 , Y02P10/234
Abstract: A degassing and grain refinement system for a cast aluminum-based component and a method of achieving both hydrogen gas presence reduction and grain size reduction in a cast aluminum-based component. Ultrasonic vibrations are imparted to both the liquid metal travel path from its source to the mold to achieve the reduction in hydrogen gas in the molten metal, as well as to one or more locations within the mold to achieve relatively small and equiaxed grains in the component upon solidification.
Abstract translation: 用于铸铝基组分的脱气和晶粒细化系统以及在铸铝基组分中实现氢气存在还原和晶粒尺寸减小的方法。 超声波振动被赋予从其源到模具的液态金属行进路径，以实现熔融金属中的氢气的还原，以及模具内的一个或多个位置，以实现组件中的相对小的等轴晶粒 凝固后。
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公开(公告)号：US20200316676A1
公开(公告)日：2020-10-08
申请号：US16376667
申请日：2019-04-05
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Christopher D. Cogan , Michael J. Walker , Garrold DeGrace , Thomas Gustafson , Dale Gerard
Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a precision sand core and mold assembly, a liquid aluminum alloy delivery system, and a mold manipulator system. The precision sand core and mold assembly is disposed in the mold manipulator system and the liquid aluminum alloy delivery system includes an in-furnace ultrasonic actuator and a launder tube having at least an ultrasonic actuator. The liquid aluminum alloy delivery system is sealed to the precision sand core and mold assembly and provides liquid aluminum alloy into a gating system of the precision sand core and mold assembly. The precision sand core and mold assembly is rotated approximately 180°. The precision sand core and mold assembly is vibrated.
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公开(公告)号：US09808858B2
公开(公告)日：2017-11-07
申请号：US14884259
申请日：2015-10-15
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Christopher D. Cogan
IPC: B22C9/08
CPC classification number: B22C9/088
Abstract: A method of improving riser feedability in semi-permanent mold casting is disclosed. The method includes providing a first receptacle fluidly connected to a mold cavity and providing a second receptacle fluidly connected to a riser. Further, the method includes delivering molten metal to the first receptacle and conveying the molten metal into the mold cavity through a sprue. Delivery of molten metal to the first receptacle is terminated when the mold cavity reaches a predetermined fill level delivery of molten metal to the second receptacle is initiated. In certain embodiments, the first receptacle and the second receptacle are combined into a single receptacle and the sprue is connected to the mold cavity through a lower runner and is connected to the riser through an upper runner.
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公开(公告)号：US09403209B2
公开(公告)日：2016-08-02
申请号：US13746558
申请日：2013-01-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Christopher D. Cogan , James T. Singer , Stephen M. Fitch , Maurice G. Meyer , David D. Goettsch
Abstract: Methods, systems, and apparatus for reduction of gas pressure within a core, such as a sand casting core package, during a casting process in order to reduce bubble defects. Some embodiments may comprise a mold configured to receive a molten metal to create a metal casting, such as an engine block casting. The mold may comprise a mold core configured to create a cavity within the metal casting. The system may further comprise a filling device configured for delivering a molten metal into the mold for creating the metal casting. The mold core may comprise a material that is permeable to certain gases known to often result in bubble defects. The system may further comprise a vacuum configured to be coupled with the mold to reduce gas pressure within a permeable portion of the mold in order to reduce the incidence of bubble defects within the casting.
Abstract translation: 为了减少气泡缺陷，在铸造过程期间降低芯体内的气体压力的方法，系统和装置，例如砂铸芯包装。 一些实施例可以包括被配置为接收熔融金属以形成金属铸件（例如发动机缸体铸件）的模具。 模具可以包括配置成在金属铸件内形成空腔的模芯。 该系统还可以包括填充装置，其被配置为将熔融金属输送到模具中以形成金属铸件。 模芯可以包括对已知通常导致气泡缺陷的某些气体是可渗透的材料。 该系统还可以包括被配置为与模具联接以减小模具的可渗透部分内的气体压力的真空，以便减少铸件内的气泡缺陷的发生。
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