公开(公告)号：US20240316515A1

公开(公告)日：2024-09-26

申请号：US18187195

申请日：2023-03-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald C. Daul ,  Ali Shabbir ,  Qigui Wang

IPC: B01J2/02 ,  B01J8/42

CPC classification number: B01J2/02 ,  B01J8/42 ,  B01J2208/00017 ,  B01J2208/00672 ,  B01J2208/00884

Abstract: Systems and methods are provided for producing one or more powders each formed of two or more materials. The system includes a housing having an enclosure, a crucible configured to produce a melt of a first material, a droplet device configured to receive the melt of the first material and produce a flow of droplets thereof within the enclosure, a distribution device configured to propel a second material into the droplets to mix therewith, wherein the droplets solidify to form particles of the first material, the second material, and/or a reaction product thereof, a platform within the enclosure configured to intercept the particles, and one or more generators configured to produce electromagnetic waves and/or acoustic waves to form a fluidized bed of the particles on the platform. The platform and/or the one or more generators are configured to produce, from the fluidized bed, a powder including the particles.

公开(公告)号：US12097583B2

公开(公告)日：2024-09-24

申请号：US17729603

申请日：2022-04-26

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ali Shabbir ,  Ronald C. Daul ,  Dale A. Gerard ,  Gregory Melekian

IPC: B23P6/04

CPC classification number: B23P6/04

Abstract: A method of repairing an ultra-large single-piece cast component of a vehicle body. The method includes the steps of locating a damaged portion of the cast component, determining an extent of the damaged portion of the ultra-large cast component, defining a cut-line sectioning off the damaged portion from an undamaged portion of the ultra-large cast component, cutting along the cut-line to excise the damaged portion from the undamaged portion of the ultra-large cast component, and joining a replacement piece to the undamaged portion of the ultra-large cast component. The replacement piece is fabricated based on the original manufacturer's geometry and dimensional data of the excised damaged portion. The undamaged portion of the ultra-large cast component remains on the vehicle body during the repair.

公开(公告)号：US12097555B2

公开(公告)日：2024-09-24

申请号：US17735337

申请日：2022-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ronald C. Daul ,  Ali Shabbir

IPC: B23P6/04 ,  B22C9/22 ,  B22D17/22 ,  B62D25/20

CPC classification number: B22D17/229 ,  B22C9/22 ,  B23P6/04 ,  B62D25/2063

Abstract: A design for repair casting having a repairable ultra-large single-piece casting and a replacement part. The ultra-large single-piece casting includes a main body portion, at least one predefined replaceable portion integrally cast with the main body portion, and a cut-guide delineating the predefined replaceable portion from the main body portion. The cut-guide includes a continuous channel defined on an exterior surface of the single-piece casting. The cut-guide further includes a rib extending from a channel wall on the main body portion. A damaged replaceable portion is excisable from the main-body portion by cutting through the single-piece casting along the cut-guide. The excised damaged replaceable portion may be replaced with the replacement part, which has substantially the same geometry, dimensions, and mechanical properties as an undamaged replaceable portion. The replacement part may be joined to the main body portion by mechanical means or by welding.

公开(公告)号：US12042990B1

公开(公告)日：2024-07-23

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.

公开(公告)号：US20240131483A1

公开(公告)日：2024-04-25

申请号：US18049012

申请日：2022-10-23

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Yucong Wang

IPC: B01F33/40 ,  B01F23/60 ,  B01F23/80 ,  B01F35/00 ,  B22F3/10 ,  B22F9/04 ,  H01F1/057

CPC classification number: B01F33/401 ,  B01F23/69 ,  B01F23/804 ,  B01F23/81 ,  B01F35/55 ,  B22F3/10 ,  B22F9/04 ,  H01F1/0577 ,  B22F2301/355 ,  B22F2998/10

Abstract: A fluidized bed mixer for combining a first powder with a second powder for manufacturing a magnet and a method of using the fluidized bed mixer for making the magnet. The first powder material is an alloy powder containing neodymium (Nd), iron (Fe), and boron (B), and the second powder material is an alloy powder or elemental metal powder containing one or more of dysprosium (Dy) and terbium (Tb). The fluidized bed mixer includes a fluidized bed portion in an upper portion of a mixing chamber, a cascading baffle system beneath the fluidized bed portion, and combined powder collection area beneath the cascading baffle system. The fluidized bed mixer is configured to homogenously combine a first powder material with a second powder material in such a way that particles of the second powder material adheres to and covers the outer surfaces of the particles of the first powder material.

公开(公告)号：US11920678B1

公开(公告)日：2024-03-05

申请号：US18168139

申请日：2023-02-13

Applicant: GM Global Technology Operations LLC

Inventor： Lokesh Choudhary ,  Qigui Wang ,  Wenying Yang ,  Marcel Taran ,  Gregory Melekian ,  Alexey Rubin

IPC: F16H63/34 ,  B60T1/00 ,  B60T1/06

CPC classification number: F16H63/3433 ,  B60T1/005 ,  B60T1/062

Abstract: A parking pawl assembly having a housing, a parking pawl having a pin bore, a support sleeve fitted in the pin bore, and a pivot pin inserted through the support sleeve. The pivot pin is attached to the housing, thus pivotally attaching the parking pawl to the housing. The parking pawl includes a first end and a second end spaced from the first end. The first end defines the pin bore having an interior bore surface. The support sleeve includes an exterior surface fitted to the interior bore surface of the parking pawl. The exterior surface of the support sleeve may include outer diameter rolled threads or other locking features. The interior bore surface of the parking pawl may include inner diameter rolled threads operable to receive the outer diameter rolled threads of the support sleeve.

公开(公告)号：US11905584B2

公开(公告)日：2024-02-20

申请号：US16737444

申请日：2020-01-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Yucong Wang ,  Qigui Wang ,  Wenying Yang

IPC: C22F1/047 ,  C22C21/08 ,  B21D37/01 ,  B21D37/18 ,  B21D37/16 ,  F16C3/00

CPC classification number: C22F1/047 ,  B21D37/01 ,  B21D37/16 ,  B21D37/18 ,  C22C21/08 ,  F16C3/00

Abstract: An apparatus for localized patterned surface hardening for light-weight alloys to increase wear resistance under lubricated contact is provided. The apparatus includes a first metallic structure and a second metallic structure. The second metallic structure includes a contact surface and is disposed in lubricated contact with the first metallic structure at the contact surface, wherein the second metallic structure is constructed with a lighter-than-steel material and wherein the contact surface includes a localized surface hardened pattern.

公开(公告)号：US11890668B2

公开(公告)日：2024-02-06

申请号：US17839680

申请日：2022-06-14

Applicant: GM Global Technology Operations LLC

Inventor： Liang Wang ,  Qigui Wang ,  Jianghuai Yang ,  Kiran Mistry ,  Oliver Patrick Jordan

IPC: B22D25/02 ,  B22C9/02 ,  B22D19/04 ,  B22D25/06

CPC classification number: B22C9/02 ,  B22D19/04 ,  B22D25/06 ,  B23P2700/07 ,  F16C2202/06 ,  F16C2202/10 ,  F16C2204/60 ,  F16C2220/06 ,  Y10T29/17 ,  Y10T29/49286

Abstract: Systems and methods of making a cast steel alloy crankshaft for an internal combustion engine are provided. The method comprises providing a mold of the crankshaft. The mold has cavities to form the crankshaft. The method further comprises melting a first metallic material at between 1400 degrees Celsius (° C.) and 1600° C. to define a molten metallic material. In addition, the method further comprises feeding the molten metallic material at a riser connection angle of between 30° and 75° in the cavities of the negative sand cast mold. The method further comprises cooling the molten metallic material at a solidification time of between 5 seconds (sec) and 20 sec in the negative sand cast mold with at least one chill member to define a solidified metallic material having dimensions of the cast steel alloy crankshaft. Furthermore, the method comprises separating the solidified metallic material from the negative sand cast mold to define the cast steel alloy crankshaft.

公开(公告)号：US11879168B2

公开(公告)日：2024-01-23

申请号：US17462527

申请日：2021-08-31

Applicant: GM Global Technology Operations LLC

Inventor： Jianghuai Yang ,  Dale A. Gerard ,  Qigui Wang

IPC: C22C37/10 ,  F02F1/00 ,  C22C37/08

CPC classification number: C22C37/10 ,  C22C37/08 ,  F02F1/004

Abstract: A high elastic modulus, high ultimate tensile strength, and low alloy gray cast iron for cylinder liners. The gray cast iron includes from 2.60 wt % to 3.30 wt % Carbon (C); from 1.50 wt % to 2.30 wt % Silicon (Si); from 0.30 wt % to 0.80 wt % Manganese (Mn); from 0.15 wt % to 0.35 wt % Phosphorus (P); from 0.05 wt % to 0.11 wt % Sulphur (S); from 0.60 wt % to 1.20 wt % Copper (Cu); from 0.10 wt % to 0.30 wt % Chromium (Cr); from greater than 0.0 wt % to 0.1 wt % Nickle (Ni); from 0.15 wt % to 0.40 wt % Molybdenum (Mo); and balance wt % Iron (Fe). The total wt % of Si, Mn, P, S, Cu, Cr, Ni, and Mo is less than about 4.10 wt %. The gray cast iron has a Carbon Equivalent (CE) from 3.00 wt % to 3.90 wt % and the product of Mn %*S % is from 0.025 to 0.045.

公开(公告)号：US11872632B1

公开(公告)日：2024-01-16

申请号：US18146645

申请日：2022-12-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald C Daul ,  Qigui Wang ,  Ali Shabbir ,  Yucong Wang ,  Andrew J Buckland

IPC: B22F9/06 ,  B01J8/00 ,  B33Y70/00 ,  B22F1/17 ,  B22F9/08

CPC classification number: B22F9/06 ,  B01J8/0075 ,  B22F1/17 ,  B33Y70/00 ,  B22F2009/0836 ,  B22F2202/06 ,  B22F2999/00

Abstract: Systems and methods are provided for producing powders. The system includes a housing having an enclosure, a crucible configured to produce a melt of a first material, a droplet device configured to receive the melt of the first material from the crucible and produce a flow of droplets of the melt of the first material within the enclosure of the housing, wherein the droplets solidify within the enclosure, and a distribution device configured to propel a second material into the flow of droplets of the first material within the enclosure such that the second material is mixed with the droplets of the first material to produce the powder that includes the first material, the second material, and/or a reaction product thereof.