-
公开(公告)号：US20220131450A1
公开(公告)日：2022-04-28
申请号：US17077318
申请日：2020-10-22
发明人： John S. Agapiou , James G. Schroth
摘要： Stator cores and methods for fabricating stator cores are provided. An exemplary stator core includes a stack of laminations. Each lamination in the stack of laminations comprises a yoke and a plurality of tooth segments fixed to the yoke.
-
公开(公告)号：US11084119B2
公开(公告)日：2021-08-10
申请号：US15992748
申请日：2018-05-30
IPC分类号： B23K11/20 , B23K11/30 , B23K35/02 , B23K11/11 , B23K103/20
摘要： A method of spot welding a workpiece stack-up that includes a steel workpiece and an aluminum alloy workpiece involves passing an electrical current through the workpieces and between welding electrodes that are constructed to affect the current density of the electrical current. The welding electrodes, more specifically, are constructed to render the density of the electrical current greater in the steel workpiece than in the aluminum alloy workpiece. This difference in current densities can be accomplished by passing, at least initially, the electrical current between a weld face of the welding electrode in contact with the steel workpiece and a perimeter region of a weld face of the welding electrode in contact with the aluminum alloy workpiece.
-
公开(公告)号：US20210037196A1
公开(公告)日：2021-02-04
申请号：US16525731
申请日：2019-07-30
发明人： Megan E. McGovern , Teresa J. Rinker , Sean R. Wagner , Ryan C. Sekol , James G. Schroth , Michael J. Bland
IPC分类号： H04N5/33 , G01N21/3563 , G01N21/95
摘要： A weld inspection system is adapted to inspect a weld of a work product via thermographic technology. The weld inspection system includes a heat source assembly, a thermal imaging camera, and a controller. The heat source assembly is adapted to sequentially direct a plurality of heat pulses upon the work product from varying perspectives and within a pre-determined time period. Thea thermal imaging camera is configured to thermally image the weld over the pre-determined time period and collect thermal imaging data of heat dissipation from the work product. The thermal imaging data is associated with the weld and the plurality of heat pulses. The controller is configured to control the heat source assembly and the thermal imaging camera. The controller includes a processor configured to receive and transform the thermal imaging data into a binary image for evaluation of the weld.
-
公开(公告)号：US20190296316A1
公开(公告)日：2019-09-26
申请号：US15935779
申请日：2018-03-26
摘要： A stack assembly having a battery tab with a localized weld and method of making the same is disclosed. The assembly is made by a process including the steps of arranging a plurality of battery tabs into a stack assembly; providing a resistive coating on at least one of the interior surfaces and the exterior surfaces of the battery tabs; and resistive heating the stack assembly. The resistive coating is a nickel-phosphorous (Ni—P) alloy containing 5 to 7 weight percent phosphorus. Resistive heating includes reacting the Ni—P alloy with an electric current to generate concentrated heat localized between adjacent battery tabs such that the Ni—P alloy undergoes solid-state bonding with the Cu in the first batter tab.
-
公开(公告)号：US20190076953A1
公开(公告)日：2019-03-14
申请号：US15702255
申请日：2017-09-12
CPC分类号： B23K11/115 , B23K9/042 , B23K9/23 , B23K11/14 , B23K11/18 , B23K11/34 , B23K26/361 , B23K26/40 , B23K35/222 , B23K35/302 , B23K2101/18 , B23K2103/12
摘要： A method of joining together adjacent overlapping copper workpieces by way of resistance spot welding involves providing a workpiece stack-up that includes a first copper workpiece and a second copper workpiece that lies adjacent to the first copper workpiece. The faying surface of the first copper workpiece includes a projection that ascends beyond a surrounding base surface of the faying surface and makes contact, either directly or indirectly, with an opposed faying surface of the second copper workpiece. Once provided, a compressive force is applied against the first and second copper workpieces and an electric current is passed momentarily through the first and second copper workpieces. The electric current initially flows through the projection to generate and concentrate heat within the projection prior to the projection collapsing. This concentrated heat surge allows a metallurgical joint to be established between the first and second copper workpieces.
-
公开(公告)号：US09839971B2
公开(公告)日：2017-12-12
申请号：US14488799
申请日：2014-09-17
CPC分类号： B23K11/20 , B23K11/115 , B23K11/34 , B23K2103/20
摘要： A method of resistance spot welding a steel workpiece to an aluminum or aluminum alloy workpiece involves providing a workpiece stack-up that includes a steel workpiece and an aluminum workpiece and preheating the welding electrode that is meant to contact the aluminum or aluminum alloy workpiece. The method further involves pressing the preheated welding electrode and another welding electrode against opposite sides of the workpiece stack-up, with the preheated welding electrode abutting the aluminum or aluminum alloy workpiece, and passing an electrical current between the two welding electrodes at a weld site to initiate and grow a molten weld pool within the aluminum or aluminum alloy workpiece.
-
公开(公告)号：US20170297135A1
公开(公告)日：2017-10-19
申请号：US15097821
申请日：2016-04-13
摘要： A method of resistance spot welding a steel workpiece and an aluminum or aluminum alloy workpiece, and a welding electrode used therein. In one step of the method a workpiece stack-up is provided. The workpiece stack-up includes a steel workpiece and an aluminum or aluminum alloy workpiece. Another step of the method involves contacting the aluminum or aluminum alloy workpiece with a weld face of the welding electrode. The welding electrode has a body and an insert. The insert is composed of a material having an electrical resistivity that is greater than an electrical resistivity of the material of the body. The weld face has a first section defined by a surface of the insert and has a second section defined by a surface of the body. Both the first and second sections make surface-to-surface contact with the aluminum or aluminum alloy workpiece amid resistance spot welding.
-
公开(公告)号：US20170297134A1
公开(公告)日：2017-10-19
申请号：US15491484
申请日：2017-04-19
CPC分类号： B23K11/115 , B23K11/20 , B23K11/34 , B23K35/002 , B23K2103/20
摘要： A method of resistance spot welding a workpiece stack-up that that includes an aluminum workpiece and an adjacent overlapping steel workpiece involves assembling the workpiece stack-up so that an intermediate metallurgical additive is positioned between the faying surfaces of the aluminum and steel workpieces. The intermediate metallurgical additive includes at least one of carbon, silicon, nickel, manganese, chromium, cobalt, or copper, and has the capability to counteract the growth and formation of Fe—Al intermetallic compounds within a molten metal weld pool created within the aluminum workpiece during resistance spot welding of the workpiece stack-up. In certain aspects of the disclosed method, the intermediate metallurgical additive may be one or more metallurgical additive deposits that are deposited onto the faying surface of the aluminum workpiece or the faying surface of the steel workpiece by an oscillating wire arc welding process.
-
公开(公告)号：US20150158113A1
公开(公告)日：2015-06-11
申请号：US14592134
申请日：2015-01-08
IPC分类号： B23K20/16 , B23K20/10 , B23K11/20 , B23K20/02 , B23K11/11 , B23K11/16 , B23K20/233 , B23K20/227
CPC分类号： B23K20/16 , B23K11/11 , B23K11/163 , B23K11/20 , B23K20/023 , B23K20/10 , B23K20/2275 , B23K20/233 , B23K20/2333 , B23K20/2336 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08 , B23K2103/10 , B23K2103/15 , B23K2103/18 , B23K2103/20
摘要： Aluminum alloy workpieces and/or magnesium alloy workpieces are joined in a solid state weld by use of a reactive material placed, in a suitable form, at the joining surfaces. Joining surfaces of the workpieces are pressed against the interposed reactive material and heated. The reactive material alloys or reacts with the workpiece surfaces consuming some of the surface material in forming a reaction product comprising a low melting liquid that removes oxide films and other surface impediments to a welded bond across the interface. Further pressure is applied to expel the reaction product and to join the workpiece surfaces in a solid state weld bond.
摘要翻译： 铝合金工件和/或镁合金工件通过使用以合适的形式放置在接合表面的反应性材料在固态焊接中接合。 将工件的接合表面压在插入的反应性材料上并加热。 反应性材料合成或与工件表面反应，在形成反应产物时消耗一些表面材料，所述反应产物包含低熔点液体，该低熔点液体除去界面上的氧化膜和其它表面阻碍物以焊接粘结。 施加进一步的压力以排出反应产物并且以固态焊接接合工件表面。
-
10.发明授权公开(公告)号：US11699942B2
公开(公告)日：2023-07-11
申请号：US16420643
申请日：2019-05-23
IPC分类号： H02K15/00 , B33Y10/00 , B29C64/112 , H02K15/02 , B22F7/08 , B22F10/28 , B33Y80/00 , B33Y40/00 , H02K1/18 , H01R43/16 , H01R43/20 , H01R43/24 , H02K1/12
CPC分类号： H02K15/0062 , B22F7/08 , B22F10/28 , B29C64/112 , H02K15/0056 , H02K15/0068 , H02K15/02 , B33Y10/00 , B33Y40/00 , B33Y80/00 , H01R43/16 , H01R43/20 , H01R43/24 , H02K1/12 , H02K1/18 , H02K1/187 , H02K2203/09 , H02K2203/12
摘要： A method for manufacturing an electro-mechanical device includes creating a plurality of substrates using a first additive manufacturing process. Each of the substrates includes a polymeric material. The substrates include a first substrate and a second substrate. The first substrate includes a first main body and defines a protrusion extending from the first main body. The second substrate includes a second main body and a recess defined in the second main body. The method includes coupling the first substrate to the second substrate by inserting the protrusion into the recess such that the protrusion elastically deforms to an elastically averaged configuration. The protrusion and the recess together form an elastic averaging coupling. The method includes creating a plurality of electrically conductive components using a second additive manufacturing process and then coupling the electrically conductive components to at least one of the substrates.
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.03 秒)
