公开(公告)号：US20140197148A1

公开(公告)日：2014-07-17

申请号：US13741454

申请日：2013-01-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  FRONIUS INTERNATIONAL GMBH

Inventor： Chih-Chang Chen ,  Corey Simone

IPC: B23K9/00 ,  B32B15/01

CPC classification number: B23K9/0008 ,  B23K9/232 ,  B23K9/235 ,  B23K35/286 ,  B23K35/302 ,  B23K35/365 ,  B23K2103/10 ,  B23K2103/12 ,  B32B15/01 ,  B32B15/017 ,  Y10T428/12736

Abstract: A bonded structure of aluminum and copper is formed by bonding a copper workpiece and an aluminum workpiece together along a joint via an arc welding process. The copper workpiece has a first coating, having a lower melting point than copper, applied to at least a portion of it. The first coating allows the copper workpiece to be wetted and brazed, while the aluminum workpiece is melted and fused along the joint. The arc welding process involves the cyclic alternating of a first stage, in which an electric current is supplied to a welding wire as it is moved toward the workpieces, and a second stage, in which the electric current is reduced and the welding wire is moved away from the workpieces, to generate and detach a plurality of molten droplets along the joint. Each molten droplet is formed from the welding wire in the first stage.

Abstract translation: 铝和铜的结合结构是通过电弧焊接方法将铜工件和铝工件沿着接头一起接合而形成的。 铜工件具有比铜更低的熔点的第一涂层，其施加到其至少一部分上。 第一个涂层允许铜工件被润湿和钎焊，而铝工件沿着接头熔化和熔合。 电弧焊接工艺涉及第一阶段的循环交替，在第一阶段中，当电线向工件移动时，电流被提供给焊丝;以及第二阶段，其中电流减小并且焊丝移动 远离工件，沿着接头产生和分离多个熔融液滴。 在第一阶段，每个熔滴由焊丝形成。

公开(公告)号：US09289842B2

公开(公告)日：2016-03-22

申请号：US13741454

申请日：2013-01-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chih-Chang Chen ,  Corey Simone

IPC: B23K9/00 ,  B23K33/00 ,  B23K35/30 ,  B32B15/01 ,  B32B15/10 ,  B23K9/23 ,  B23K9/235 ,  B23K35/28 ,  B23K35/365

CPC classification number: B23K9/0008 ,  B23K9/232 ,  B23K9/235 ,  B23K35/286 ,  B23K35/302 ,  B23K35/365 ,  B23K2103/10 ,  B23K2103/12 ,  B32B15/01 ,  B32B15/017 ,  Y10T428/12736

Abstract: A bonded structure of aluminum and copper is formed by bonding a copper workpiece and an aluminum workpiece together along a joint via an arc welding process. The copper workpiece has a first coating, having a lower melting point than copper, applied to at least a portion of it. The first coating allows the copper workpiece to be wetted and brazed, while the aluminum workpiece is melted and fused along the joint. The arc welding process involves the cyclic alternating of a first stage, in which an electric current is supplied to a welding wire as it is moved toward the workpieces, and a second stage, in which the electric current is reduced and the welding wire is moved away from the workpieces, to generate and detach a plurality of molten droplets along the joint. Each molten droplet is formed from the welding wire in the first stage.

Abstract translation: 铝和铜的结合结构是通过电弧焊接方法将铜工件和铝工件沿着接头一起接合而形成的。 铜工件具有比铜更低的熔点的第一涂层，其施加到其至少一部分上。 第一个涂层允许铜工件被润湿和钎焊，而铝工件沿着接头熔化和熔合。 电弧焊接工艺涉及第一阶段的循环交替，在第一阶段中，当电线向工件移动时，电流被提供给焊丝;以及第二阶段，其中电流减小并且焊丝移动 远离工件，沿着接头产生和分离多个熔融液滴。 在第一阶段，每个熔滴由焊丝形成。