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

IPC: F01L3/04 ,  F02F1/24 ,  B33Y80/00

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.

公开(公告)号：US20180347011A1

公开(公告)日：2018-12-06

申请号：US15609155

申请日：2017-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Herbert W. Doty ,  Devin R. Hess ,  Qigui Wang

IPC: C22C1/02 ,  B22D21/00

Abstract: A system for casting an aluminum alloy includes a first chamber for containing a first melt at a first temperature, a second chamber for containing second melt at a second temperature that is lower than the first temperature, a mixing chamber in communication with the first chamber and the second chamber for simultaneously receiving and mixing the first melt from the first chamber with the second melt from the second chamber, and a mold chamber in communication with the mixing chamber and for receiving the mixed melt.

公开(公告)号：US20180345362A1

公开(公告)日：2018-12-06

申请号：US15611821

申请日：2017-06-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Richard Osborne ,  Qigui Wang ,  Herbert W. Doty

IPC: B22D18/02

Abstract: A casting tool for a direct squeeze casting process that includes a cast mold tool with a contoured internal passage for better die thermal management. This enables the use of a grey cast iron mold material. A durable mold surface may also be formed through a nodular cast iron reaction with a Magnesium addition in either sand core or sand core coating.

公开(公告)号：US20180056384A1

公开(公告)日：2018-03-01

申请号：US15245658

申请日：2016-08-24

Applicant: GM Global Technology Operations LLC

Inventor： Richard J. Osborne ,  Herbert W. Doty ,  Frank Sant

IPC: B22D18/08 ,  B22D18/02

CPC classification number: B22D18/08 ,  B22D18/02

Abstract: A casting system includes a first mold, a second mold, the first mold and the second mold being configured to receive molten metal, the first mold and the second mold exerting pressure on the molten metal to form a mechanical component as the molten metal cools, and a sensor that measures the pressure exerted on the molten metal to provide feedback information to regulate the pressure exerted on the molten metal.

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：US20150315688A1

公开(公告)日：2015-11-05

申请号：US14265995

申请日：2014-04-30

Applicant: GM Global Technology Operations LLC

Inventor： Herbert W. Doty

IPC: C22F1/057 ,  C22C21/18 ,  C22C21/16 ,  C22C21/02 ,  B22D27/04 ,  C22F1/00 ,  C22F1/043 ,  C22F1/04 ,  B22D21/00 ,  C22C21/14 ,  C22C21/00

CPC classification number: C22C21/00 ,  B22D21/007 ,  B22D27/04 ,  C22C21/02 ,  C22C21/12 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22F1/002 ,  C22F1/04 ,  C22F1/043 ,  C22F1/057

Abstract: Aluminum alloy components having improved properties. In one form, the cast alloy component may include about 0.6 to about 14.5 wt % silicon, 0 to about 0.7 wt % iron, about 1.8 to about 4.3 wt % copper, 0 to about 1.22 wt % manganese, about 0.2 to about 0.5 wt % magnesium, 0 to about 1.2 wt % zinc, 0 to about 3.25 wt % nickel, 0 to about 0.3 wt % chromium, 0 to about 0.5 wt % tin, about 0.0001 to about 0.4 wt % titanium, about 0.002 to about 0.07 wt % boron, about 0.001 to about 0.07 wt % zirconium, about 0.001 to about 0.14 wt % vanadium, 0 to about 0.67 wt % lanthanum, and the balance predominantly aluminum plus any remainders. Further, the weight ratio of Mn/Fe is between about 0.5 and about 3.5. Methods of making cast aluminum parts are also described.

Abstract translation: 具有改进性能的铝合金部件。 在一种形式中，铸造合金组分可以包括约0.6至约14.5重量％的硅，0至约0.7重量％的铁，约1.8至约4.3重量％的铜，0至约1.22重量％的锰，约0.2至约0.5重量％ ％镁，0至约1.2重量％的锌，0至约3.25重量％的镍，0至约0.3重量％的铬，0至约0.5重量％的锡，约0.0001至约0.4重量％的钛，约0.002至约0.07重量％ 约0.001至约0.07重量％的锆，约0.001至约0.14重量％的钒，0至约0.67重量％的镧，余量主要为铝加上任何残余物。 此外，Mn / Fe的重量比为约0.5至约3.5。 还描述了制造铸铝部件的方法。

公开(公告)号：US20150213164A1

公开(公告)日：2015-07-30

申请号：US14164613

申请日：2014-01-27

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Devin R. Hess ,  Michael J. Walker ,  Herbert W. Doty ,  Bowang Xiao

IPC: G06F17/50

CPC classification number: G06F17/5018

Abstract: A method of computationally determining material property changes for a cast aluminum alloy component. Accuracy of the determination is achieved by taking into consideration material property changes over the projected service life of the component. In one form, the method includes accepting time-dependent temperature data and using that data in conjunction with one or more constitutive relationships to quantify the impact of various temperature regimes or conditions on the properties of heat-treatable components and alloys. Finite element nodal analyses may be used as part of the method to map the calculated material properties on a nodal basis, while a viscoplastic model may be used to determine precipitation hardening and softening effects as a way to simulate the time and temperature dependencies of the material. The combined approach may be used to determine the material properties over the expected service life of a cast component made from such material.

Abstract translation: 一种计算确定铸造铝合金部件的材料特性变化的方法。 确定的准确性是通过考虑到零件的预计使用寿命内的材料性质变化来实现的。 在一种形式中，该方法包括接受时间依赖性温度数据并且结合一个或多个本构关系使用该数据来量化各种温度方案或条件对可热处理组分和合金的性质的影响。 可以使用有限元节点分析作为方法的一部分，以在节点的基础上映射计算的材料性质，而粘弹性模型可用于确定沉淀硬化和软化效应，作为模拟材料的时间和温度依赖性的方式 。 组合方法可用于确定由这种材料制成的铸造部件的预期使用寿命的材料性能。

公开(公告)号：US11473456B2

公开(公告)日：2022-10-18

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

IPC: F01L3/00 ,  F01L3/04 ,  F02F1/24 ,  B33Y80/00 ,  B22F10/00

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.

公开(公告)号：US10604825B2

公开(公告)日：2020-03-31

申请号：US15153402

申请日：2016-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Herbert W. Doty

IPC: C22C21/02 ,  B22D17/00 ,  B22D18/02 ,  B22D21/00 ,  C22F1/043

Abstract: An Aluminum-Silicon casting alloy for use in high temperature service conditions. The alloy composition includes, by weight percentage, from about 5.00% to about 17.00% Silicon (Si), from about 0.00% to about 0.90% Iron (Fe), from about 0.00% to about 1.00% Manganese (Mn); from about 0.000% to about 0.018% Strontium (Sr), from about 0.00% to about 2.00% Copper (Cu), from about 0.00% to about 0.50% Magnesium (Mg), from about 0.00% to about 0.05% Zinc (Zn), from about 0.01% to about 0.10% Boron (B); and a balance of Aluminum (Al).

公开(公告)号：US09834828B2

公开(公告)日：2017-12-05

申请号：US14265995

申请日：2014-04-30

Applicant: GM Global Technology Operations LLC

Inventor： Herbert W. Doty

IPC: C22C21/02 ,  C22C21/00 ,  C22C21/14 ,  C22F1/00 ,  B22D21/00 ,  B22D27/04 ,  C22C21/12 ,  C22C21/16 ,  C22C21/18 ,  C22F1/04 ,  C22F1/043 ,  C22F1/057

CPC classification number: C22C21/00 ,  B22D21/007 ,  B22D27/04 ,  C22C21/02 ,  C22C21/12 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22F1/002 ,  C22F1/04 ,  C22F1/043 ,  C22F1/057

Abstract: Aluminum alloy components having improved properties. In one form, the cast alloy component may include about 0.6 to about 14.5 wt % silicon, 0 to about 0.7 wt % iron, about 1.8 about 4.3 wt % copper, 0 to about 1.22 wt % manganese, about 0.2 to about 0.5 wt % magnesium, 0 to about 1.2 wt % zinc, 0 to about 3.25 wt % nickel, 0 to about 0.3 wt % chromium, 0 to about 0.5 wt % tin, about 0.0001 to about 0.4 wt % titanium, about 0.002 to about 0.07 wt % boron, about 0.001 to about 0.07 wt % zirconium, about 0.001 to about 0.14 wt % vanadium, 0 to about 0.67 wt % lanthanum, and the balance predominantly aluminum plus any remainders. Further, the weight ratio of Mn/Fe is between about 0.5 and about 3.5. Methods of making cast aluminum parts are also described.