公开(公告)号：US10574122B2

公开(公告)日：2020-02-25

申请号：US15404433

申请日：2017-01-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. Perry ,  James G. Schroth ,  Sean R. Wagner

IPC: H02K15/02 ,  H02K15/03 ,  C23C8/26 ,  C23C8/50 ,  C23C8/38 ,  C21D7/06 ,  C21D9/00 ,  C21D6/00 ,  H02K1/27 ,  C23C8/32

Abstract: A method of forming a rotor includes isolating a bridge area of an electrical steel lamination. The bridge area is disposed between a first portion of the electrical steel lamination and a second portion of the electrical steel lamination that is adjacent to the first portion. Each of the first portion, the second portion, and the bridge area has an initial hardness, and the electrical steel lamination has an initial magnetic permeability. After isolating, the method includes hardening only the bridge area so that the bridge area has a treated hardness that is greater than the initial hardness. Concurrent to hardening, the method includes decreasing the initial magnetic permeability at only the bridge area.

公开(公告)号：US10240222B2

公开(公告)日：2019-03-26

申请号：US14789260

申请日：2015-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： James G. Schroth ,  Thomas A. Perry

IPC: B23K11/11 ,  C22C9/00 ,  B23K35/30 ,  B23K11/16 ,  B23K11/18 ,  B23K11/34 ,  B23K103/04 ,  B23K103/10

Abstract: A method of joining a first metal workpiece substrate and a second metal workpiece substrate by way of reaction metallurgical joining involves passing a pulsating DC electrical current through the metal workpiece substrates and a reaction material disposed between confronting faying surfaces of the workpiece substrates. The electrical current comprises a plurality of current pulses that generally increase in applied current level.

公开(公告)号：US20170036305A1

公开(公告)日：2017-02-09

申请号：US15200452

申请日：2016-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-ping Wang ,  Michael G. Poss ,  Aaron D. Cox ,  Blair E. Carlson ,  Thomas A. Perry

IPC: B23K26/70 ,  B23K26/21 ,  B23K26/06

CPC classification number: B23K26/706 ,  B23K37/006

Abstract: An aperture plate for a welding apparatus includes a body defining an aperture. The body of the aperture plate includes a first end and a second end that is opposite the first end. In addition, the body includes a first surface intersecting the first and second ends. Moreover, the body includes a second surface formed opposite the first surface. The second surface is nonparallel to the first surface.

Abstract translation: 用于焊接设备的孔板包括限定孔的主体。 孔板的主体包括与第一端相对的第一端和第二端。 此外，主体包括与第一和第二端相交的第一表面。 此外，主体包括与第一表面相对形成的第二表面。 第二表面与第一表面不平行。

公开(公告)号：US09482710B2

公开(公告)日：2016-11-01

申请号：US14024185

申请日：2013-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John S. Agapiou ,  Thomas A. Perry ,  Jon Matthew Radlick

IPC: G01R31/00 ,  G01R31/34 ,  G01R31/12

CPC classification number: G01R31/003 ,  G01R31/1227 ,  G01R31/343

Abstract: An electrical part testing system for evaluating quality of an insulated electrical part, including a computer-controlled switching apparatus for providing an original voltage to the electrical part automatically according to a pre-established testing scheme calling for provision of voltage to each phase of the part, in turn, while grounding the other phases of the part. A high-frequency filter for receiving receive the original voltage, receiving a load voltage emanating from the electrical part in response to the part receiving the original voltage, and filtering the original voltage from the load voltage to isolate any partial-discharge voltage added to the original voltage by the electrical part while the part is being electrified by the original voltage, yielding a filtered signal. A computing device determines, based on a comparison of a peak amplitude of the partial-discharge inception voltage to a voltage threshold, the quality of the electrical part being tested.

Abstract translation: 一种用于评估绝缘电气部件的质量的电气部件测试系统，包括用于根据预先建立的测试方案自动向电气部件提供原始电压的计算机控制的开关装置，其要求向部件的每个相位提供电压 反过来，同时接地零件的其他阶段。 用于接收的高频滤波器接收原始电压，响应于接收原始电压的部分接收从电气部分发出的负载电压，并且从负载电压对原来的电压进行滤波，以将添加到 原始电压通过电气部分，同时部分由原始电压通电，产生滤波信号。 计算装置基于部分放电起始电压的峰值振幅与电压阈值的比较来确定正在测试的电气部件的质量。

公开(公告)号：US20160218603A1

公开(公告)日：2016-07-28

申请号：US14996549

申请日：2016-01-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： James G. Schroth ,  Thomas A. Perry ,  John S. Agapiou ,  Ronald M. Lesperance

IPC: H02K15/00 ,  B23K35/22 ,  B23K9/23 ,  B23K1/19 ,  B23K1/00 ,  B23K9/00

CPC classification number: B23K35/222 ,  B23K1/0016 ,  B23K1/19 ,  B23K9/0008 ,  B23K9/167 ,  B23K9/23 ,  B23K2101/32 ,  B23K2101/36 ,  B23K2103/12 ,  H02K3/50 ,  H02K15/0081

Abstract: An arc welding/brazing process is disclosed that is useful to join together a first copper piece and a second copper piece without damaging more heat-sensitive materials that may be located nearby is disclosed. The arc welding/brazing process includes using a non-consumable electrode wire, which electrically communicates with a weld control in a straight polarity orientation, to strike an arc across a gap established between a leading tip end of the electrode wire and the first copper piece. The current that flows through the arc when the arc is established heats the first copper piece such that the first copper piece becomes joined to a second copper piece. The joint between the first copper piece and the second copper piece may be an autogenous weld joint or a braze joint.

Abstract translation: 公开了一种电弧焊接/钎焊方法，其可用于将第一铜片和第二铜片接合在一起而不损害可能位于附近的更多热敏材料。 电弧焊接/钎焊工艺包括使用与直线极性取向的焊接控制电连通的非消耗性电极线，以跨越在电极线的前端和第一铜片之间建立的间隙 。 当电弧建立时流过电弧的电流加热第一铜片，使得第一铜片接合到第二铜片。 第一铜片和第二铜片之间的接合部可以是自身焊接接头或钎焊接头。

公开(公告)号：US20160008911A1

公开(公告)日：2016-01-14

申请号：US14789134

申请日：2015-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： James G. Schroth ,  Thomas A. Perry ,  Chen Zhou

IPC: B23K11/00 ,  B23K9/23 ,  C22C9/00 ,  B23K35/30 ,  B23K11/18 ,  B23K11/34 ,  B23K9/30 ,  B23K9/00

CPC classification number: C22C9/00 ,  B23K9/042 ,  B23K20/165 ,  B23K35/302

Abstract: A method of pre-placing a reaction material onto a surface of a metal workpiece substrate involves the use of oscillating wire arc welding. The method involves depositing and adhering the reaction material from a consumable electrode rod. In doing so, the reaction material can be deposited at any time before the metal workpiece substrate is ready for joining by reaction metallurgical joining, and the size and shape of the reaction material deposit can be more easily controlled.

Abstract translation: 将反应材料预放置在金属工件基板的表面上的方法涉及使用振荡焊丝电弧焊接。 该方法包括从可消耗电极棒沉积和粘附反应材料。 在这样做时，反应材料可以在金属工件基片准备好通过反应冶金接合准备接合之前随时沉积，并且可以更容易地控制反应材料沉积物的尺寸和形状。

公开(公告)号：US11131739B2

公开(公告)日：2021-09-28

申请号：US16405043

申请日：2019-05-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald M. Lesperance ,  John S. Agapiou ,  Thomas A. Perry

IPC: G01R35/00 ,  G01R31/12 ,  G01R31/319

Abstract: A partial discharge calibration standard apparatus may include a first and second rigid members defining respective first and second facing surfaces. An electrically insulating material may be disposed between the facing surfaces. The apparatus may further include a pressure member maintaining the rigid members together, thereby fixing the first and second facing surfaces in a substantially parallel spaced relation across the insulating material such that a partial discharge threshold magnitude for an electrical potential difference between the first and second facing surfaces is determined. The insulating material may prevent a partial discharge of an electrical potential from the first facing surface to the second facing surface below the partial discharge threshold magnitude, while allowing the electrical potential difference to be discharged from the first facing surface to the second facing surface through the insulating material when the electrical potential difference is increased to the partial discharge threshold magnitude.

公开(公告)号：US11007713B2

公开(公告)日：2021-05-18

申请号：US15497832

申请日：2017-04-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John P Spicer ,  Jason J Nolte ,  Thomas A. Perry ,  Blair E Carlson ,  Anil K Sachdev ,  Hyungmin Chae ,  Mark A Smith

IPC: B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F12/00 ,  B29C64/241 ,  B29C64/171 ,  B29K105/00

Abstract: An additive manufacturing system includes a powder delivery system, an area scanning laser, a build chamber, and a controller. The powder delivery system provides a predetermined amount of powder material to the build chamber, and includes a material dispenser, a dispensing head, and a scraper. The scanning laser selectively sinters the powder material, and includes a mirror galvanometer for raster scanning. The build chamber has an annular configuration, and includes an inner annular wall that defines a central portion disposed inward of the build chamber. A portion of the delivery system and the laser are located in the central portion. The chamber continuously rotates under the head and under a sintering zone generated by the laser as the delivery system continuously dispenses the material. The laser continuously raster scans the material at the sintering zone in a raster pattern to sinter a layer of material directly to a preceding layer.

公开(公告)号：US10958144B2

公开(公告)日：2021-03-23

申请号：US16141281

申请日：2018-09-25

Applicant: GM Global Technology Operations LLC

Inventor： John S. Agapiou ,  Thomas A. Perry

IPC: H02K15/02 ,  H02K15/09 ,  H02K15/00 ,  H02K17/28 ,  H02K3/04

Abstract: A method for manufacturing an induction rotor includes placing a lamination stack into a fixture in which the first end of the lamination stack is rotated in an opposite rotational direction from the second end of the lamination stack to skew the conduction bars to an angle α. Vertical members are fixed to an outer perimeter of each of the plurality of laminates of the lamination stack. Hoop members are fixed to each of the plurality of vertical members and an outer edge of each of the plurality of conduction bars. A conduction ring is fixed on each of the ends of the lamination stack. An outer perimeter of the lamination stack is machined to remove the plurality of vertical members and the plurality of hoop members from the lamination stack.

公开(公告)号：US10527158B1

公开(公告)日：2020-01-07

申请号：US16105386

申请日：2018-08-20

Applicant: GM Global Technology Operations LLC

Inventor： Sean R. Wagner ,  Thomas A. Perry ,  David T. Stark

IPC: F16H59/10 ,  G01D5/20

Abstract: An electronic transmission range selection (ETRS) system for a motor vehicle transmission includes an ETRS housing disposed on the transmission, the ETRS housing having a magnetic field sensor in communication with a transmission controller; and a magnetic field source including a magnet component and a high magnetic permeability component. The magnetic field source disposed on a transmission selector shaft, the magnetic field source detectable by the magnetic field sensor at a plurality of predetermined positions along a movement path of the transmission selector shaft; and the magnetic field sensor detecting magnetic flux generated by the magnetic field source, and communicating magnetic field source position information to the controller. The high magnetic permeability component homogenizes the magnetic flux generated by the magnet component and the controller generates an electronic transmission mode signal based on the magnetic field source position information.