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121. 发明授权

US09884386B2 Welding process for the Welding of Aluminum 有权
公开(公告)号：US09884386B2
公开(公告)日：2018-02-06
申请号：US14140361
申请日：2013-12-24
申请人： Robert Bosch GmbH
发明人： Volker Arndt , Juergen Haeufgloeckner , Michael Ripper
IPC分类号： B23K9/12 , B23K11/25 , B23K11/11 , B23K11/18
CPC分类号： B23K11/255 , B23K11/115 , B23K11/185
摘要： A welding process for the welding of aluminum includes a force sensor measuring a force between two welding electrodes on aluminum elements to be welded and transmitting its measured values to a welding control. Until the elapse of a set welding time, the welding control calculates and stores at least one absolute value and/or at least one increase in the measured force. The welding control compares the measured absolute value and/or the increase in the measured force with a reference value and/or a reference curve and calculates a control deviation from the comparison. After the elapse of the set welding time, the welding control subjects the welding electrodes to a constant current during a welding time extension that follows the set welding time, dependent on a magnitude of the control deviation that is measured at the point in time of the elapse and/or during the set welding time.

122. 发明申请

US20170312847A1 METHOD OF WELDING A NICKEL STRENGTH LUG WITH A BRONZE CONNECTING PIN AND A BRASS CONTACT RING IN AN ACCELEROMETER SENSOR 审中-公开
公开(公告)号：US20170312847A1
公开(公告)日：2017-11-02
申请号：US15488754
申请日：2017-04-17
申请人： CONTINENTAL AUTOMOTIVE FRANCE , CONTINENTAL AUTOMOTIVE GmbH
发明人： Thierry MORALES , Jeroen VAN-EST
IPC分类号： B23K11/20 , B23K11/34 , B23K11/18 , B23K103/08 , B23K103/18
摘要： The present invention consists in a method of welding a nickel strength lug with a bronze connecting pin and a brass contact ring in an accelerometer sensor, the strength lug being interleaved between the connecting pin and the contact ring, the welding being effected electrically with the strength lug pressed simultaneously against the connecting pin and the contact ring. Before welding, the strength lug undergoes deformation of its external surface at least on each of two portions of the surface respectively facing the connecting pin and the contact ring, the surface deformation creating on each of the portions asperities intended to come into local contact with the connecting pin and the contact ring, respectively.

123. 发明申请

US20170297136A1 CONTROL OF INTERMETALLIC COMPOUND GROWTH IN ALUMINUM TO STEEL RESISTANCE WELDING 审中-公开
公开(公告)号：US20170297136A1
公开(公告)日：2017-10-19
申请号：US15485996
申请日：2017-04-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Tyson W. Brown , David R. Sigler , Blair E. Carlson , Amberlee S. Haselhuhn
IPC分类号： 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分类号： 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
摘要： 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.

124. 发明申请

US20170282303A1 WELDING ELECTRODE DESIGN FOR EXPELLING ORGANIC MATERIAL IN WELD BONDING 审中-公开
公开(公告)号：US20170282303A1
公开(公告)日：2017-10-05
申请号：US15470062
申请日：2017-03-27
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Hui-Ping Wang , David R. Sigler , Blair E. Carlson
IPC分类号： B23K35/02 , B23K11/20 , B23K11/18 , B23K11/30 , B23K11/11
CPC分类号： B23K35/0255 , B23K11/0026 , B23K11/115 , B23K11/185 , B23K11/20 , B23K11/30 , B23K11/3009 , B23K11/3018 , B23K35/02 , B23K2101/006 , B23K2103/20
摘要： A radially slotted welding electrode is disclosed that may be used in conjunction with a companion second welding electrode to conduct resistance spot welding on a workpiece stack-up assembly that includes a steel workpiece and an overlapping adjacent aluminum workpiece, especially when an intermediate organic material layer is disposed between the workpiece faying surfaces of the steel and aluminum workpieces. The radially slotted welding electrode includes a weld face that has a central upstanding plateau and a convex dome portion that surrounds the central upstanding plateau and which includes a plurality of circumferentially spaced trapezoidal weld face sections that include transverse upstanding arcuate ridges. Together, the central upstanding plateau and the trapezoidal weld face sections of the convex dome portion define an annular channel that surrounds the central plateau and a plurality of radial slots that communicate with and extend outwards from the central channel.

125. 发明申请

US20170106466A1 MULTI-STAGE RESISTANCE SPOT WELDING METHOD FOR WORKPIECE STACK-UP HAVING ADJACENT STEEL AND ALUMINUM WORKPIECES 审中-公开
公开(公告)号：US20170106466A1
公开(公告)日：2017-04-20
申请号：US14883249
申请日：2015-10-14
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： David R. Sigler , Blair E. Carlson , Michael J. Karagoulis
IPC分类号： B23K11/20 , B23K11/24 , B23K11/11 , B23K11/18
CPC分类号： B23K11/20 , B23K11/115 , B23K11/185 , B23K11/24 , B23K2103/20
摘要： A workpiece stack-up that includes at least a steel workpiece and an adjacent and overlapping aluminum workpiece can be resistance spot welded by a multi-stage spot welding method. The multi-stage spot welding method involves initially forming a weld joint between the steel and aluminum workpieces. The weld joint extends into the aluminum workpiece from the faying interface of the two workpieces and includes an interfacial weld bond area adjacent to and joined with the faying surface of the steel workpiece. After the weld joint is initially formed, the multi-stage spot welding method calls for remelting and resolidifying at least a portion of the weld joint that includes some or all of the interfacial weld bond area. At least a portion of the resultant refined weld joint may then be subjected to the same remelting and resolidifying practice, if desired. Multiple additional practices of remelting and resolidifying may be carried out.

126. 发明申请

US20160279732A1 RESISTIVE WELDING ELECTRODE AND METHOD FOR SPOT WELDING STEEL AND ALUMINUM ALLOY WORKPIECES WITH THE RESISTIVE WELDING ELECTRODE 审中-公开
标题翻译：电阻焊接电极和方法焊接电极和铝合金工件与电阻焊接电极
公开(公告)号：US20160279732A1
公开(公告)日：2016-09-29
申请号：US15074690
申请日：2016-03-18
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： David R. Sigler , Blair E. Carlson , Michael J. Karagoulis , David P. Kelly
IPC分类号： B23K11/30 , B23K11/18 , B23K11/20
CPC分类号： B23K11/3009 , B23K11/20 , B23K35/0205 , B23K35/32 , B23K2103/20
摘要： A resistive welding electrode includes at least a weld face constructed of a refractory-based material that exhibits an electrical conductivity that is less than or equal to 65% of the electrical conductivity of commercially pure annealed copper as defined by the International Annealed Copper Standard (IACS). A method of using the resistive welding electrode to resistance spot weld a workpiece stack-up that includes an aluminum alloy workpiece and steel workpiece that overlap and contact each other at a faying interface is also disclosed.
摘要翻译：电阻焊接电极至少包括由耐火材料构成的焊接面，其表现出小于或等于国际退火铜标准（IACS）定义的商业纯退火铜的电导率的65％的电导率）。还公开了一种使用电阻焊接电极对包含铝合金工件和钢制工件的工件叠层进行电阻点焊的方法，该铝合金工件和钢工件在接合界面处彼此重叠和接触。

127. 发明授权

US09273562B2 Projection resistance welding of superalloys 有权
标题翻译：超级合金的防爆焊接
公开(公告)号：US09273562B2
公开(公告)日：2016-03-01
申请号：US13352468
申请日：2012-01-18
申请人： Gerald J. Bruck
发明人： Gerald J. Bruck
IPC分类号： B23K9/00 , B23K26/00 , F01D5/28 , B23K11/14 , B23K11/18 , B23P6/00 , F01D5/00 , B23K9/013 , B23K26/24
CPC分类号： F01D5/28 , B23K9/013 , B23K11/14 , B23K11/18 , B23K2101/001 , B23K2103/08 , B23K2103/26 , B23P6/005 , F01D5/005 , F05D2230/23 , F05D2230/232 , F05D2230/80 , F05D2240/30 , F05D2300/175 , Y10T428/12493
摘要： Superalloy components are joined by mating a recess formed in one component with a corresponding projection formed in another component along a contact surface. The components are compressed along the contact surface and resistance heat welded to each other. Current is passed between the components at a selected flow rate and application time until localized melting occurs along the contact surface, and they are mutually affixed to each other. When repairing a damaged surface portion of a superalloy material component, the damaged portion is removed to form an excavated recess. A repair splice is formed, preferably of a same material with similar mechanical structural properties, having a mating projection with profile conforming to the corresponding recess profile. The splice and substrate are resistance heat welded under compression pressure until localized melting occurs along the contact surface, so that they are mutually affixed.
摘要翻译：超合金部件通过将形成在一个部件中的凹部与沿着接触表面形成在另一部件中的相应突起配合而接合。这些部件沿着接触表面被压缩，并且电阻被热焊接在一起。电流以选定的流速和施加时间在组分之间通过，直到沿着接触表面发生局部熔融，并且它们彼此相互固定。当修复超合金材料部件的损坏的表面部分时，损坏的部分被移除以形成挖掘的凹部。形成具有类似机械结构特性的相同材料的修补接头，其具有符合相应凹槽轮廓的轮廓的配合凸起。接头和衬底是在压缩压力下进行电阻热焊接，直到沿着接触表面发生局部熔化，使得它们相互贴合。

128. 发明申请

US20160039039A1 ALUMINUM RESISTANCE SPOT WELDING TIP AND METHOD OF MAKING THE SAME 审中-公开
标题翻译：铝电阻焊点及其制造方法
公开(公告)号：US20160039039A1
公开(公告)日：2016-02-11
申请号：US14452280
申请日：2014-08-05
申请人： Paul C. Edwards, II , Eric Flewelling
发明人： Paul C. Edwards, II , Eric Flewelling
IPC分类号： B23K11/36 , B23K11/18 , B23K11/30
CPC分类号： B23K11/185 , B23K11/3009 , B23K35/0205 , B23K35/0255 , B23K35/0261 , B23K35/286 , B23K2103/10
摘要： An electrical resistance spot welding tip for joining a plurality of aluminum alloy workpieces includes a cylindrical body extending along a central axis defined through the body between a first end and an opposing second end of the cylindrical body. A spherically domed central region is formed at the first end of the cylindrical body. The spherically domed central region has an outer boundary defining a diameter of the spherically domed central region. An annular outer ring is positioned coaxially about the spherically domed central region. The annular outer ring has an end surface defined in a plane perpendicular to the central axis. A distance between a point on the spherically domed central region defined at the central axis and the end surface of the annular outer ring is dependent on a thickness of each of the plurality of aluminum alloy workpieces.
摘要翻译：用于连接多个铝合金工件的电阻点焊头包括沿着通过本体限定的中心轴延伸的圆筒体，该圆筒体在圆柱体的第一端和相对的第二端之间延伸。圆柱形中心区域形成在圆柱体的第一端。球形圆顶的中心区域具有限定球形圆顶中心区域的直径的外边界。环形外圈围绕球形圆顶的中心区域同轴地定位。环形外圈具有限定在垂直于中心轴线的平面内的端面。在中心轴线上限定的球形中心区域上的点与环形外圈的端面之间的距离取决于多个铝合金工件中的每一个的厚度。

129. 发明申请

US20160008912A1 CURRENT SCHEDULE FOR OPTIMIZED REACTION METALLURGICAL JOINING 审中-公开
标题翻译：优化反应冶金加工的当前时间表
公开(公告)号：US20160008912A1
公开(公告)日：2016-01-14
申请号：US14789260
申请日：2015-07-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： James G. Schroth , Thomas A. Perry
IPC分类号： B23K11/02 , C22C9/00 , B23K11/18 , B23K35/30
CPC分类号： C22C9/00 , B23K11/115 , B23K11/16 , B23K11/185 , B23K11/34 , B23K35/302 , B23K2103/04 , B23K2103/10
摘要： 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.
摘要翻译：通过反应冶金接合将第一金属工件基板和第二金属工件基板接合的方法包括使脉动DC电流通过金属工件基板和布置在工件基板的相对的接合表面之间的反应材料。电流包括通常在施加的电流水平上增加的多个电流脉冲。

130. 发明申请

US20140360986A1 RESISTANCE SPOT WELDING OF STEEL TO PRE-COATED ALUMINUM 有权
标题翻译：钢的电阻点焊到预涂铝
公开(公告)号：US20140360986A1
公开(公告)日：2014-12-11
申请号：US14268422
申请日：2014-05-02
申请人： GM Global Technology Operations LLC
发明人： David R. Sigler , Blair E. Carlson , Mahmoud H. Abd Elhamid
IPC分类号： B23K11/18 , B23K11/20 , B23K11/34 , B23K11/11
CPC分类号： B23K11/34 , B23K11/115 , B23K2103/20
摘要： Resistance spot welding of a steel workpiece to an aluminum or an aluminum alloy workpiece can be facilitated by replacing the refractory aluminum oxide-based layer(s) on at least the faying surface of the aluminum or aluminum alloy workpiece with a protective coating that is more conducive to the spot welding process. The protective coating may be a metallic coating or a metal oxide conversion coating. In a preferred embodiment, the protective coating is a coating of zinc, tin, or an oxide of titanium, zirconium, chromium, or silicon.
摘要翻译：通过在铝或铝合金工件的至少接合表面上更换耐火材料氧化铝基层，使用更多的保护涂层，可以促进钢工件对铝或铝合金工件的电阻点焊有利于点焊过程。保护涂层可以是金属涂层或金属氧化物转化膜。在优选的实施方案中，保护涂层是锌，锡或钛，锆，铬或硅的氧化物的涂层。

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