-
公开(公告)号：US10730133B2
公开(公告)日：2020-08-04
申请号：US15807219
申请日：2017-11-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Amberlee S. Haselhuhn , David R. Sigler , Blair E. Carlson
Abstract: A welding electrode and a method of using the welding electrode for resistance spot welding are disclosed. The welding electrode includes a body and a weld face. The weld face includes a central dome portion and a shoulder portion that surrounds the central dome portion and extends from an outer circumference of the weld face upwardly and radially inwardly to the central dome portion. The central dome portion has a series of radially-spaced ringed ridges that project outwardly from a base dome face surface. The series of radially-spaced ringed ridges on the central dome portion includes an innermost ringed ridge and an outermost ringed ridge. The outermost ringed ridge on the central dome portion has a radial inner side surface and a radial outer side surface. The radial outer side surface extends below the base dome face surface down to the shoulder portion of the weld face.
-
公开(公告)号：US11364563B2
公开(公告)日：2022-06-21
申请号：US17082447
申请日：2020-10-28
Applicant: GM Global Technology Operations LLC
Inventor： Amberlee S. Haselhuhn
IPC: B23K11/20 , B23K11/11 , B23K33/00 , B32B7/12 , B32B15/01 , B23K103/04 , B23K103/08
Abstract: A method of resistance spot welding a stacked assembly of dissimilar workpieces. The stack assembly includes a first workpiece formed of a first alloy, a second workpiece formed of a second alloy, and a third workpiece formed of a third alloy sandwiched between the first workpiece and the second workpiece. The third alloy includes a lower resistivity than the first alloy and a lower resistivity than the second alloy. A faying interface is defined by a portion of the first workpiece in direct contact with a portion of the second workpiece through the third workpiece. A weld nugget, a braze, or a combination of a weld nugget and a braze joins the first workpiece to the second workpiece at the faying interface. An annular ring of re-solidified molten pool of third alloy surrounds the faying interface and a region of re-solidified partially melted third alloy surrounding the annular ring.
-
公开(公告)号：US20210187653A1
公开(公告)日：2021-06-24
申请号：US16723162
申请日：2019-12-20
Applicant: GM Global Technology Operations LLC
Inventor： Amberlee S. Haselhuhn , David R Sigler , Robert T Szymanski
Abstract: A combined stackup apparatus with a perforated interlayer for resistance spot welding is provided. The apparatus comprises a first metal sheet of a first material and a second metal sheet of a second material. The apparatus further comprising a perforated interlayer disposed between the first metal layer and the second metal layer. The perforated interlayer is made of one of the first and second materials. The perforated interlayer has a plurality of perforations formed therethrough. Each perforation has a perforation size of between about 0.1 mm and about 3 mm.
-
公开(公告)号：US11065711B2
公开(公告)日：2021-07-20
申请号：US16178806
申请日：2018-11-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Amberlee S. Haselhuhn , David R. Sigler
IPC: B23K11/20 , B23K11/11 , B23K11/30 , B23K35/02 , B23K11/31 , B23K103/20 , B23K101/00
Abstract: An electrical resistance spot welding electrode is disclosed for contact with a narrow or other selected spot weld region in a steel workpiece in a stack-up with an aluminum alloy workpiece for use in a spot welding method in which the weld nugget is carefully formed in the aluminum workpiece at the interface of the stack-up. The welding face of the welding electrode for contact with the steel workpiece is shaped with an aspect ratio greater than one, which fits against the contact surface of the steel workpiece, while the welding face for the aluminum-contacting weld electrode is circular (with an aspect ratio equal to one). The stack-up of workpieces may include a single steel workpiece facing two aluminum workpieces in a sandwich type stack-up or two steel workpieces facing a single aluminum workpiece with the outer steel workpiece having the narrow contact surface for the steel welding electrode.
-
公开(公告)号：US20190134735A1
公开(公告)日：2019-05-09
申请号：US15807219
申请日：2017-11-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Amberlee S. Haselhuhn , David R. Sigler , Blair E. Carlson
Abstract: A welding electrode and a method of using the welding electrode for resistance spot welding are disclosed. The welding electrode includes a body and a weld face. The weld face includes a central dome portion and a shoulder portion that surrounds the central dome portion and extends from an outer circumference of the weld face upwardly and radially inwardly to the central dome portion. The central dome portion has a series of radially-spaced ringed ridges that project outwardly from a base dome face surface. The series of radially-spaced ringed ridges on the central dome portion includes an innermost ringed ridge and an outermost ringed ridge. The outermost ringed ridge on the central dome portion has a radial inner side surface and a radial outer side surface. The radial outer side surface extends below the base dome face surface down to the shoulder portion of the weld face.
-
Patent Agency Ranking
公开(公告)号：US20190106916A1
公开(公告)日：2019-04-11
申请号：US15728034
申请日：2017-10-09
Applicant: GM Global Technology Operations LLC
Inventor： Ian J. Sutherland , Michael J. Walker , Wonhee M. Kim , Paul W. Alexander , Richard J. Skurkis , Amberlee S. Haselhuhn , Xiujie Gao
Abstract: A stretchable adjustable-stiffness assembly includes a casing and first and second friction layers. The casing can be fluidly sealed and includes an interior compartment containing a fluid. The fluid can shift between a first interior pressure and a second interior pressure less than the first interior pressure and an exterior pressure. The first and second friction layers are disposed within the interior compartment. The assembly can shift between relaxed and fixed configurations. In the relaxed configuration, the fluid has the first interior pressure, the casing is stretchable between a first dimension and a second dimension greater than the first dimension, and the assembly has a first stiffness. In the fixed configuration, the first fluid has the second interior pressure, the casing length is fixed, the first and second friction layers are engaged, and the assembly has a second stiffness greater than the first stiffness.
-
公开(公告)号：US20170297136A1
公开(公告)日：2017-10-19
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 , C22C38/04 , C22C38/02 , B23K35/36 , B23K11/18 , B23K11/11 , B23K35/30 , B23K35/02 , B23K35/00 , C22C38/16 , B23K103/20 , B23K103/04 , B23K103/10
CPC classification number: B23K11/20 , B23K11/115 , B23K11/163 , B23K11/185 , B23K35/002 , B23K35/004 , B23K35/0294 , B23K35/3053 , B23K35/3612 , B23K2101/006 , B23K2101/18 , B23K2101/34 , B23K2101/35 , B23K2103/04 , B23K2103/10 , B23K2103/20 , C22C38/02 , C22C38/04 , C22C38/16
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：US20220126390A1
公开(公告)日：2022-04-28
申请号：US17082447
申请日：2020-10-28
Applicant: GM Global Technology Operations LLC
Inventor： Amberlee S. Haselhuhn
Abstract: A method of resistance spot welding a stacked assembly of dissimilar workpieces. The stack assembly includes a first workpiece formed of a first alloy, a second workpiece formed of a second alloy, and a third workpiece formed of a third alloy sandwiched between the first workpiece and the second workpiece. The third alloy includes a lower resistivity than the first alloy and a lower resistivity than the second alloy. A faying interface is defined by a portion of the first workpiece in direct contact with a portion of the second workpiece through the third workpiece. A weld nugget, a braze, or a combination of a weld nugget and a braze joins the first workpiece to the second workpiece at the faying interface. An annular ring of re-solidified molten pool of third alloy surrounds the faying interface and a region of re-solidified partially melted third alloy surrounding the annular ring.
-
公开(公告)号：US20220097165A1
公开(公告)日：2022-03-31
申请号：US17038368
申请日：2020-09-30
Applicant: GM Global Technology Operations LLC
Inventor： Amberlee S. Haselhuhn , Adam R. Ballard , David R. Sigler , Peter M. Parlow , Mark A. Nelson
Abstract: A method to join three panels together for a motor vehicle includes one or more of the following: layering the three panels, the three panels including a first panel, a second panel, and a third panel, the second panel being positioned between the first panel and the third panel, the third panel having a higher electrical conductivity than the first panel and the second panel; joining the first panel and the second panel together; and joining the third panel to the first panel and the second panel.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.026 seconds)
