公开(公告)号：US11945082B2

公开(公告)日：2024-04-02

申请号：US17098854

申请日：2020-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Richard J. Skurkis ,  Tyson W. Brown ,  Mark A. Smith ,  Miguel A. Saez ,  John P. Spicer

IPC: B25B11/00 ,  B25B5/14

CPC classification number: B25B5/14 ,  B25B11/00

Abstract: Systems and methods are provided for locating a pair of components relative to one another using complex surfaces. One component has a complex surface, where the complex surface is smoothly contoured. Another component is shaped to be connected with the first component. A fixture locates the first component relative to the second component. The fixture includes a locator with a complex surface region shaped to mate with the complex surface of the one component to locate the fixture relative to that component. The fixture includes another locator to locate the fixture relative to the second component.

公开(公告)号：US11590575B2

公开(公告)日：2023-02-28

申请号：US16842106

申请日：2020-04-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark A. Smith ,  Tyson W. Brown ,  HyungMin Chae ,  Md Ashabul Anam ,  Whitney A. Poling ,  Richard J. Skurkis

IPC: B22F10/00 ,  B22F3/10 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/10

Abstract: A system and method for additive manufacturing are provided. The system includes a structure defining a chamber for manufacturing parts via additive manufacturing. A powder metal applicator is configured to deposit layers of powder metal material to build a part on a build platform. A laser source is configured to direct one or more laser beams onto each layer of powder metal material to fuse the powder metal material, wherein metal condensate is created by the laser beam(s) contacting the powder metal material. An element spaced apart from the layers of powder material has a temperature different than the chamber temperature, so that the element is configured to attract or repel the metal condensate by virtue of the temperature differential between the element and the chamber. The method includes using the element having the different temperature to attract or repel the metal condensate within the chamber.

公开(公告)号：US20220161378A1

公开(公告)日：2022-05-26

申请号：US17103721

申请日：2020-11-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： HyungMin Chae ,  Tyson W. Brown ,  Richard J. Skurkis ,  Md Ashabul Anam ,  Wonhee M. Kim

IPC: B23Q3/08 ,  B23Q1/38

Abstract: Systems and methods are provided for gripping of a workpiece with a layer jamming structure having rigid datum structures. A system includes a layer jamming structure configurable in an inactivated conformable state, with a membrane defining an internal cavity containing a number of overlapping material layers. The rigid structures engage the layer jamming structure. A pressure system includes a pump coupled with the internal cavity to change a pressure therein to transform the layer jamming structure from the inactivated conformable state to an activated rigid state disposed around the workpiece. The rigid structures help conform the layer jamming structure to the workpiece during transformation to the activated rigid state and to present datum fixturing surfaces in the activated rigid state.

公开(公告)号：US10857619B2

公开(公告)日：2020-12-08

申请号：US15485996

申请日：2017-04-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tyson W. Brown ,  David R. Sigler ,  Blair E. Carlson ,  Amberlee S. Haselhuhn

IPC: B23K11/20 ,  B23K11/11 ,  B23K11/16 ,  B23K11/18 ,  B23K35/00 ,  B23K35/02 ,  B23K35/30 ,  B23K35/36 ,  C22C38/02 ,  C22C38/04 ,  C22C38/16 ,  B23K103/04 ,  B23K103/10 ,  B23K103/20 ,  B23K101/00 ,  B23K101/34 ,  B23K101/18

Abstract: A method of resistance spot welding a workpiece stack-up that includes an aluminum workpiece and an overlapping adjacent steel workpiece so as to minimize the thickness of an intermetallic layer comprising Fe—Al intermetallic compounds involves providing reaction-slowing elements at the faying interface of the aluminum and steel workpieces. The reaction-slowing elements may include at least one of carbon, copper, silicon, nickel, manganese, cobalt, or chromium. Various ways are available for making the one or more reaction-slowing elements available at the faying interface of the aluminum and steel workpieces including being dissolved in a high strength steel or being present in an interlayer that may take on a variety of forms including a rigid shim, a flexible foil, a deposited layer adhered to and metallurgically bonded with a faying surface of the steel workpiece, or an interadjacent organic material layer that includes particles containing the reaction-slowing elements.

公开(公告)号：US20200061700A1

公开(公告)日：2020-02-27

申请号：US16112110

申请日：2018-08-24

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  William R. Rodgers

IPC: B22F1/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B22F3/105 ,  B33Y40/00

Abstract: Systems and methods for additive manufacturing of a metallic component using a metal-powder paste are described. The metal-powder paste is a mixture including a non-uniform metal powder and a flowable additive. The metal-powder paste is applied to a surface of a substrate and spread to thereby produce a uniform-thickness layer in areas corresponding to the metallic component. The flowable additive is driven off using thermal energy to thereby form a layer of the non-uniform metal powder having a uniform thickness. The non-uniform metal powder is then fused to the substrate to thereby form the metallic component.

公开(公告)号：US20190291182A1

公开(公告)日：2019-09-26

申请号：US15934342

申请日：2018-03-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Tyson W. Brown ,  Anil K. Sachdev

IPC: B22F3/105 ,  B22F1/00 ,  C22C21/02

Abstract: A three-dimensional aluminum alloy part may be manufactured by a process in which a layer of aluminum alloy powder feed material is distributed over a substrate and scanned with a high-energy laser or electron beam in selective regions corresponding to a cross-section of the aluminum alloy part being formed. During the manufacturing process, the selective regions may melt and form a pool of molten aluminum alloy material. Thereafter, the pool of molten aluminum alloy material may cool and solidify into a solid layer of fused aluminum alloy material. During solidification of the pool of molten aluminum alloy material, solid phase particles may form within a solution of liquid phase aluminum prior to formation of solid phase aluminum dendrites. The resulting aluminum alloy part may exhibit a polycrystalline structure that predominantly includes a plurality of equiaxed grains, instead of columnar grains.

公开(公告)号：US20190032660A1

公开(公告)日：2019-01-31

申请号：US15659088

申请日：2017-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Carnell E. Williams

IPC: F04C18/08 ,  F04C29/12 ,  F04C29/00 ,  F02B33/38 ,  F04C18/12

CPC classification number: F04C18/084 ,  F02B33/38 ,  F04C18/126 ,  F04C18/16 ,  F04C18/56 ,  F04C29/0085 ,  F04C29/122 ,  F04C2240/20 ,  F04C2240/40 ,  F04C2250/20

Abstract: A rotor for a positive displacement compressor assembly having a housing defining an inlet, an outlet, and a rotor cavity in communication with the inlet and the outlet. The rotor may comprise a rotor body and a porous inner core enclosed within the rotor body. The rotor may comprise a tapered rotor body having an outer radius that decreases from a first end to a second end thereof. In one form, the positive displacement compressor assembly may comprise a supercharger assembly for an internal combustion engine.

公开(公告)号：US20180216501A1

公开(公告)日：2018-08-02

申请号：US15421795

申请日：2017-02-01

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Michael B. Fleck ,  Ronald B. Beals ,  Kevin M. Luchansky

IPC: F01L1/18

CPC classification number: F01L1/181 ,  F01L1/146 ,  F01L1/46 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2810/02

Abstract: A monolithic rocker arm component includes a first lateral wall defining a first aperture and a first mass reducing feature, an opposing second wall defining a second aperture and a second mass reducing feature, a pushrod receiving member that bridges the first lateral wall and the second lateral wall at a first end of the rocker arm, and a tongue element that bridges the first lateral wall and the second lateral wall at a second end of the rocker arm. The pushrod receiving member routes oil from the first towards the second end. The monolithic rocker arm may have one or more internal regions having lattice structures. Methods for additive manufacturing the monolithic rocker component are also provided.

公开(公告)号：US11534972B2

公开(公告)日：2022-12-27

申请号：US17007698

申请日：2020-08-31

Applicant: GM Global Technology Operations LLC

Inventor： Richard J. Skurkis ,  Whitney A. Poling ,  Mark A. Smith ,  Tyson W. Brown ,  Md Ashabul Anam ,  HyungMin Chae ,  Blair E. Carlson

IPC: B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B28B17/04 ,  B28B1/00 ,  B22F10/00 ,  B29C64/245

Abstract: A post-build powder removal system includes a work bed, a platform wall having at least one powder evacuation port, and an evacuation port sealing system operable for selectively closing and opening the powder evacuation port. The platform wall cooperates with the work bed to define a powder chamber. The evacuation port sealing system includes an external sleeve slidingly fitted onto the exterior surface of the platform wall such that the external sleeve is slideable in a first direction closing the at least one powder evacuation port and slideable in an opposite second direction opening the at least one powder evacuation port.

公开(公告)号：US10982306B2

公开(公告)日：2021-04-20

申请号：US15797034

申请日：2017-10-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Anil K. Sachdev ,  Tyson W. Brown

IPC: C22C38/16 ,  B22F3/105 ,  C22C33/02 ,  B33Y10/00 ,  B33Y70/00 ,  B23K26/342 ,  B22F9/08 ,  B23K15/00 ,  C21D6/00 ,  C22C38/12

Abstract: A powder material for an additive manufacturing process and a method of manufacturing a three-dimensional article via an additive manufacturing process. The powder material comprises an iron-based alloy including alloying elements of carbon (C) and copper (Cu). The iron-based alloy may be formulated to achieve a precipitation strengthened microstructure comprising a lath martensite matrix phase and a Cu precipitate phase. The iron-based alloy may have a Cu weight fraction and a nickel (Ni) weight fraction, and the Ni weight fraction may be less than the Cu weight fraction of the iron-based alloy.