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81. 发明授权

US10253401B2 Method for relieving residual stress in cast-in-place liners of HPDC engine blocks 有权
公开(公告)号：US10253401B2
公开(公告)日：2019-04-09
申请号：US15267673
申请日：2016-09-16
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Maurice G Meyer , Qigui Wang , Jianghuai Yang
IPC分类号： C21D1/30 , C21D1/42 , C22F1/04 , F02F1/00 , F02F1/18 , F02F7/00 , H05B6/06 , H05B6/10 , C21D1/613
摘要： A method for relieving residual stress in cast-in-place liners of high pressure die cast (HPDC) engine blocks to prevent cracking in the liners during the machining process. The method includes locally heating up the liners and the surrounding engine block material through rapid induction heating and then cooling down the liners and surrounding engine block material with still ambient air to a predetermined temperature after the residual stress has been reduced to a desired threshold.

82. 发明申请

US20190017467A1 ALUMINUM CYLINDER BLOCK AND METHOD OF MANUFACTURE 审中-公开
公开(公告)号：US20190017467A1
公开(公告)日：2019-01-17
申请号：US16136705
申请日：2018-09-20
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang
IPC分类号： F02F7/00 , C21D9/00 , B22C9/10 , B22C9/02 , B23K20/12 , F02F1/00
CPC分类号： F02F7/0085 , B22C9/02 , B22C9/10 , B23K20/1215 , B23K20/122 , C21D9/0068 , F02F1/00 , F02F2200/06
摘要： A cast cylinder block for an internal combustion engine includes a first and a second cylinder bore and a shared bore wall. The first cylinder bore includes a first bore wall and the second cylinder bore includes a second bore wall. The shared cylinder bore wall includes a first portion and a second portion. A portion of the first bore wall combines with a portion of the second bore wall to form the shared cylinder bore wall. The first portion of the shared bore wall is an as-cast portion. The second portion of the shared bore wall is a metal matrix composite.

83. 发明授权

US10113504B2 Aluminum cylinder block and method of manufacture 有权
公开(公告)号：US10113504B2
公开(公告)日：2018-10-30
申请号：US14966512
申请日：2015-12-11
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang
IPC分类号： F02F7/00 , B22C9/02 , B22C9/10 , B23K20/12 , C21D9/00 , F02F1/00
摘要： A cast cylinder block for an internal combustion engine includes a first and a second cylinder bore and a shared bore wall. The first cylinder bore includes a first bore wall and the second cylinder bore includes a second bore wall. The shared cylinder bore wall includes a first portion and a second portion. A portion of the first bore wall combines with a portion of the second bore wall to form the shared cylinder bore wall. The first portion of the shared bore wall is an as-cast portion. The second portion of the shared bore wall is a metal matrix composite.

84. 发明申请

US20180298842A1 CYLINDER LINER FOR INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180298842A1
公开(公告)日：2018-10-18
申请号：US15485430
申请日：2017-04-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Qigui Wang , Bhuvaneswara R. Dharmavarapu , Cherng-chi Chang
IPC分类号： F02F1/00
CPC分类号： F02F1/004 , F05C2251/048
摘要： A cylinder liner for an engine block includes a first engine block bonding surface, and a second engine block bonding surface that provides a lower heat transfer coefficient between the cylinder liner and an adjacent engine block material than the first engine block bonding surface. The second engine block bonding surface extends a substantial portion of the axial length of the cylinder liner.

85. 发明申请

US20180057915A1 STEEL ALLOYS AND CYLINDER LINERS THEREOF 审中-公开
公开(公告)号：US20180057915A1
公开(公告)日：2018-03-01
申请号：US15251259
申请日：2016-08-30
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Huaxin Li , Jianghuai Yang , Qigui Wang , William Miller
IPC分类号： C22C38/14 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , F02F1/00
CPC分类号： C22C38/14 , C21D2211/005 , C21D2211/008 , C21D2211/009 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , F02F1/004
摘要： Steel alloys and steel alloy cylinder liners are provided. Steel alloys can comprise iron, about 0.8% to about 2.1% manganese, about 0.10% to about 0.40% silicon, about 0.05% to about 0.30% sulfur, about 0.06% to about 0.16% phosphorus, about 0.09% to about 0.21% titanium, about 0.09% to about 0.21% aluminum, and either low carbon and about 0.0005% to about 0.0055% boron, or medium carbon. The steel alloy cylinder liners can be capable of achieving a mirror-like finish. The steel alloy cylinder liners can comprise ultra-thin wall thickness of less than about 1.5 mm or about 1.0 mm to about 0.5 mm. The steel alloy cylinder liners can comprise a Young's modulus of at least 200 GPa. The steel alloy cylinder liners can comprise a Young's modulus to density ratio of at least about 25.64 GPa/(g/cm3).

86. 发明申请

US20180045134A1 ADHESION OF THERMAL SPRAY USING COMPRESSION TECHNIQUE 审中-公开
公开(公告)号：US20180045134A1
公开(公告)日：2018-02-15
申请号：US15233254
申请日：2016-08-10
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Jianghuai Yang , Qigui Wang , Martin S Kramer , Dale A Gerard
IPC分类号： F02F1/00 , F02F7/00 , F02F1/18 , C23C4/12
摘要： An improved surface activation technique improves the adhesion of thermal spray coatings, which is useful for engine cylinder bores. The new method includes compressing the cylinder bore surface to create a surface profile on the surface, such as through rolling a roller along the surface. An engine block is also provided, which includes a plurality of cylinder bores, each cylinder bore having an inner surface, and each inner surface having a surface profile that includes a helical groove and other surface profiles formed in the inner surface. A thermal spray coating is formed on the inner surface of each cylinder bore, the thermal spray coating being adhered to the surface profile of the inner surface. A roller assembly for activating the surface is also provided.

87. 发明授权

US09489620B2 Quick analysis of residual stress and distortion in cast aluminum components 有权
标题翻译：快速分析铸铝组件的残余应力和变形
公开(公告)号：US09489620B2
公开(公告)日：2016-11-08
申请号：US14295404
申请日：2014-06-04
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Yucong Wang , Zhiqiang Gao , Zhibin Quan
IPC分类号： G06N3/10 , G06N3/08 , G06F17/10 , C22F1/04 , G06F17/50
CPC分类号： G06N3/08 , C22F1/04 , G06F17/10 , G06F17/50 , G06F17/5018 , G06F2217/41 , G06N3/10 , Y02T10/82
摘要： A computer-implemented system and method of rapidly predicting at least one of residual stress and distortion of a quenched aluminum casting. Input data corresponding to at least one of topological features, geometrical features and quenching process parameters associated with the casting is operated upon by the computer that is configured as a neural network to determine output data corresponding to at least one of the residual stress and distortion based on the input data. The neural network is trained to determine the validity of at least one of the input data and output data and to retrain the network when an error threshold is exceeded. Thereby, residual stresses and distortion in the quenched aluminum castings can be predicted using the embodiments in a tiny fraction of the time required by conventional finite-element based approaches.
摘要翻译：一种计算机实现的系统和方法，其快速预测淬火铝铸件的残余应力和变形中的至少一种。对应于与铸造相关联的拓扑特征，几何特征和淬火处理参数中的至少一个的输入数据由配置为神经网络的计算机进行操作，以确定对应于基于残余应力和失真的至少一个的输出数据对输入数据。训练神经网络以确定输入数据和输出数据中的至少一个的有效性，并且当超过错误阈值时重新训练网络。因此，可以在传统的基于有限元法的方法所需的很小一部分时间内使用实施例来预测淬火铝铸件中的残余应力和变形。

88. 发明授权

US09381567B2 Methods to control macro shrinkage porosity and gas bubbles in cast aluminum engine blocks 有权
标题翻译：控制铸铝发动机缸体中宏观收缩孔隙度和气泡的方法
公开(公告)号：US09381567B2
公开(公告)日：2016-07-05
申请号：US14088579
申请日：2013-11-25
申请人： GM Global Technology Operations LLC
发明人： Andrew J. Genualdi , Peggy E. Jones , Qigui Wang , Christopher C. Stanfield
IPC分类号： B22D21/00 , B22D46/00
CPC分类号： B22D21/007
摘要： A method for estimating proper eutectic modification level in a liquid metal to minimize macro shrinkage porosity and gas bubbles during casting of aluminum automobile components, and a system and article for casting.
摘要翻译：一种用于估计液态金属中适当的共晶修饰水平的方法，用于在铝汽车部件铸造过程中使宏观收缩孔隙率和气泡最小化，以及用于铸造的系统和制品。

89. 发明申请

US20150213164A1 PRODUCT DESIGN RELIABILITY WITH CONSIDERATION OF MATERIAL PROPERTY CHANGES DURING SERVICE 审中-公开
标题翻译：产品设计在服务期间考虑材料性质变化的可靠性
公开(公告)号：US20150213164A1
公开(公告)日：2015-07-30
申请号：US14164613
申请日：2014-01-27
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Devin R. Hess , Michael J. Walker , Herbert W. Doty , Bowang Xiao
IPC分类号： G06F17/50
CPC分类号： G06F17/5018
摘要： 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.
摘要翻译：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。

90. 发明申请

US20150148936A1 METHODS TO CONTROL MACRO SHRINKAGE POROSITY AND GAS BUBBLES IN CAST ALUMINUM ENGINE BLOCKS 有权
标题翻译：在铝合金发动机块中控制宏观收缩孔隙和气体泡沫的方法
公开(公告)号：US20150148936A1
公开(公告)日：2015-05-28
申请号：US14088579
申请日：2013-11-25
申请人： GM Global Technology Operations LLC
发明人： Andrew J. Genualdi , Peggy E. Jones , Qigui Wang , Christopher C. Stanfield
IPC分类号： B22D21/00 , B22D46/00
CPC分类号： B22D21/007
摘要： A method for estimating proper eutectic modification level in a liquid metal to minimize macro shrinkage porosity and gas bubbles during casting of aluminum automobile components, and a system and article for casting.
摘要翻译：一种用于估计液态金属中适当的共晶修饰水平的方法，用于在铝汽车部件铸造过程中使宏观收缩孔隙率和气泡最小化，以及用于铸造的系统和制品。

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