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101.发明申请公开(公告)号：US20150294448A1
公开(公告)日：2015-10-15
申请号：US14253119
申请日：2014-04-15
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Wenying Yang , James W. Knight
IPC: G06T7/00
CPC classification number: G06T7/0004 , G01N21/88 , G06T2207/30136
Abstract: A quantitative metallographic method to measure skin layer thickness in high pressure die cast aluminum components. Because the faster-cooling skin layer region exhibits a higher volume fraction of eutectic phases than that of a slower-cooling inner region, measurements showing such higher eutectic phases can be used to quantify such layer thickness. An image at various thicknesses of a location of interest in a cast component sample is first obtained using an image analyzer, from which eutectic volume fractions within each of the received images may be determined. Comparisons of the determined volume fractions can be made against a known or predicted quantity for a particular alloy composition, and then correlated to the skin layer thickness via differences between the received or measured quantities and those of the known standard.
Abstract translation: 用于测量高压压铸铝组件中的表层厚度的定量金相法。 因为更快冷却的表皮层区域表现出比较慢冷却的内部区域更高的共晶相体积分数，所以可以使用显示这种更高共晶相的测量来量化这种层厚度。 首先使用图像分析仪获得铸件成分样品中感兴趣位置的各种厚度的图像，从而可以确定每个接收图像内的共晶体积分数。 可以针对特定合金组合物的已知或预测量对所确定的体积分数进行比较，然后通过接收或测量的量与已知标准物质之间的差异与皮肤层厚度相关。
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公开(公告)号：US20140260805A1
公开(公告)日：2014-09-18
申请号：US14174240
申请日：2014-02-06
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Dale A. Gerard
IPC: C22B21/02
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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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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104.发明申请公开(公告)号：US20250149946A1
公开(公告)日：2025-05-08
申请号：US18504633
申请日：2023-11-08
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Yi Liu , Kestutis A. Sonta , Vang N. Kue , Akshay Trivedi
Abstract: A composite conductor for a vehicle, a propulsion system for a vehicle, and a method of forming a composite busbar for a vehicle. The composite conductor includes a surface, and a first copper tape laminated to the surface. The composite conductor is electrically conductive exhibiting an electrical conductivity of 1.0×10{circumflex over (7)} Siemens per meter (S/m) or greater. The first copper tape includes a layer of carbon nanotubes sandwiched between a first copper layer and a second copper layer. The composite busbar may be connected to a plurality of windings in the stator of an electric motor.
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公开(公告)号：US12172210B2
公开(公告)日：2024-12-24
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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Patent Agency Ranking
公开(公告)号：US20240291332A1
公开(公告)日：2024-08-29
申请号：US18174879
申请日：2023-02-27
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao , Daniel J. Wilson , Steven L. Burkholder
CPC classification number: H02K1/26 , H02K15/024
Abstract: An induction rotor assembly having conductive bars is provided. The assembly comprises a lamination stack comprising a body having a first end and second ends to define a longitudinal axis. The body has an outer circumferential portion extending from the first end to the second end. The outer portion has a plurality of walls defining open slots formed from the first end through the second end. The assembly further comprises a first ring disposed on the first end and a second ring disposed on the second end. The assembly further comprises a plurality of conductive bars extending between the first and second rings. Each conductive bar is disposed in one of the slots such that the respective conductive bar is in contact with the lamination stack and connects the first and second rings. Each bar comprises an inner portion and a conductive outer skin disposed about the inner portion.
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公开(公告)号：US20240246142A1
公开(公告)日：2024-07-25
申请号：US18158725
申请日：2023-01-24
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L. Burkholder , Thomas W. Gustafson
CPC classification number: B22D25/04 , B22D21/007 , B22D35/04
Abstract: A system and method of manufacturing an aluminum fuel cell cradle are provided. The method comprises providing a negative cast mold having cavities to form the cradle having a length greater than a width to define a longitudinal axis and providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism comprises primary risers connected to and in fluid communication with the cavities. The method further comprises melting a first metallic material to define a molten metallic material, moving the mold to a vertical orientation about the longitudinal axis while feeding molten metallic material through the runner to the cavities, and moving the cast mold to a horizontal orientation. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.
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108.发明公开公开(公告)号：US20240217174A1
公开(公告)日：2024-07-04
申请号：US18149365
申请日：2023-01-03
Applicant: GM Global Technology Operations LLC
Inventor： Rachel Nederhoed , Qigui Wang , Jeffrey Harris , Stanley Tong
IPC: B29C64/194 , B29C64/118 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00
CPC classification number: B29C64/194 , B29C64/118 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00
Abstract: A three-dimensional part as well as a method and system for creating the three-dimensional part. The three-dimensional part including a first portion of a three-dimensional part formed from a first plurality of successively deposited layers, with a cavity defined in the first portion of the three-dimensional part. A magnet is inserted in the cavity and a cover disposed on the magnet in the cavity. In addition, a second portion of the three-dimensional part is formed form a second plurality of successively deposited layers deposited on the first portion of the three-dimensional part and the cover.
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公开(公告)号：US11994085B2
公开(公告)日：2024-05-28
申请号：US17809421
申请日：2022-06-28
Applicant: GM Global Technology Operations LLC
Inventor： Ronald John Petrus , Jared Matthew Satkowiak , Hsiao F. Wong , Kenneth E. Schroeder , Qigui Wang , Richard D. Ricchi
CPC classification number: F02F3/0084 , B22F10/366 , B33Y40/10 , B33Y80/00 , C22C21/00 , B22F10/28 , B22F2301/052 , B33Y10/00 , F02F2003/0007
Abstract: An additive manufactured piston having a crown portion and a skirt portion form of an aluminum-cerium-silicon alloy. The piston includes a least one recess pocket in an unstressed region located at an interface between an inner surface of the crown portion and an outer surface of the skirt portion. The skirt portion includes an outer panel surface defining an external rib adjacent a peripheral end surface, at least one stiffening rib extending from a pin boss to a skirt end, and a wall thickness of between 0.2 mm and 1.0 mm in a region between the external rib and the at least one stiffening rib. The skirt portion further includes an internal first rib having a width W1 on a thrust side portion and an internal second rib having a width W2 located on an anti-thrust side portion, in which W1 is greater than W2.
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公开(公告)号：US11905992B2
公开(公告)日：2024-02-20
申请号：US17114961
申请日：2020-12-08
Applicant: GM Global Technology Operations LLC
Inventor： Jianghuai Yang , James D. Cremonesi , Paul J. Gelazin , Qigui Wang , Daniel J. Wilson
CPC classification number: F16C3/06 , C21D9/30 , C22C38/00 , C21D1/18 , C21D1/58 , C21D2211/005 , C21D2211/008 , F16C3/08 , F16C2202/04 , F16C2204/62 , F16C2204/64 , F16C2223/10 , Y10T29/49286
Abstract: A method for manufacturing a crankshaft for an internal combustion engine with a plurality of journals having a hardened case with a first microstructure. The crankshaft is comprised of a steel comprising between about 0.3 wt % and 0.77 wt % Carbon. The first microstructure of the hardened case of the journals comprises between about 15% and 30% ferrite and a balance of martensite and the resultant subsurface residual stress between 310 MPa and 620 MPa.
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