A stable welding process for a welding method in which at least one welding device is used for welding. During the welding process carried out using the welding device, synchronization information is transmitted to the at least one welding device from at least one other electric device, in which a device current that changes over time flows in a device current circuit at least at one point in time, and the at least one welding device is designed to use the obtained synchronization information in order to ignore measurement values detected at the point in time for the measurement variable.

A multi-material component joined by a high entropy alloy is provided, as well as methods of making a multi-material component by joining materials with high entropy alloys to reduce or eliminate liquid metal embrittlement (LME) cracks.

A multi-material component joined by a high entropy alloy is provided, as well as methods of making a multi-material component by joining materials with high entropy alloys to reduce or eliminate liquid metal embrittlement (LME) cracks.

Systems and methods are described to address issues associated with welding with cored wires. In certain processes, a welding wire may “stick” or fuse to a contact tip. To mitigate the negative effects of a wire fusing to a contact tip, a double pulse waveform is applied. A first pulse is applied at a first current level above a threshold current level required to transfer a ball of molten welding wire in a peak phase, and a second pulse is applied in the background phase at a second current level below the threshold current level to limit and/or eliminate fusion between the wire and the contact tip. In examples, the second current level is sufficient to dislodge a spot weld between the welding wire and the welding torch yet insufficient to transfer a ball of molten welding wire.

Systems and methods are described to address issues associated with welding with cored wires. In certain processes, a welding wire may “stick” or fuse to a contact tip. To mitigate the negative effects of a wire fusing to a contact tip, a double pulse waveform is applied. A first pulse is applied at a first current level above a threshold current level required to transfer a ball of molten welding wire in a peak phase, and a second pulse is applied in the background phase at a second current level below the threshold current level to limit and/or eliminate fusion between the wire and the contact tip. In examples, the second current level is sufficient to dislodge a spot weld between the welding wire and the welding torch yet insufficient to transfer a ball of molten welding wire.

Second member (20) includes a material that is difficult to weld to first member (10). First member (10) is provided with first penetrating part (11) penetrating in a thickness direction. Third member (30) is arc-welded to an inner peripheral surface of first penetrating part (11) and opening surface (10a) of first member (10) via second penetrating part (21) of second member (20). Second member (20) is compressed by flange (31) and first member (10) by solidification contraction of third member (30), and second member (20) is therefore fixed between flange (31) of third member (30) and first member (10).

A hybrid bumper assembly for a vehicle includes a steel reinforcement beam and aluminum crush cans attached to end portions of the steel reinforcement beam. The reinforcement beam has a multi-tubular shape that is formed by a high-strength steel sheet that is roll formed to provide at least two tubular portions. A crush can has an interfacing portion that is coupled to an end portion of the reinforcement beam. The end portions of the reinforcement beam and the interfacing portion of the crush cans may be configured to attach together using a select joining technology in a manner that minimizes or eliminates bimetallic or galvanic corrosion between the reinforcement beam and the crush cans.

A hybrid bumper assembly for a vehicle includes a steel reinforcement beam and aluminum crush cans attached to end portions of the steel reinforcement beam. The reinforcement beam has a multi-tubular shape that is formed by a high-strength steel sheet that is roll formed to provide at least two tubular portions. A crush can has an interfacing portion that is coupled to an end portion of the reinforcement beam. The end portions of the reinforcement beam and the interfacing portion of the crush cans may be configured to attach together using a select joining technology in a manner that minimizes or eliminates bimetallic or galvanic corrosion between the reinforcement beam and the crush cans.

A metal hand tool including a handle attached to a blade piece and method of construction. The blade piece includes a blade opposite an elongated tang. The handle is made up of two, welded, symmetrical handle halves, each handle half having an opening for receiving a hang hole piece and a notched distal end for forming a handle opening to receive the blade piece elongated tang. In an embodiment, the handle includes a curved distal end accommodating a curved welded connection between the blade piece and the handle. The hand tool further includes a hang hole piece configured for placement through the hang hole openings in the handle and for welded connection to the handle. In an embodiment, the elongated tang includes a hang hole opening through which the hang hole extends. Some embodiments further include one or more tang guide pieces welded to the interior of the handle.

A metal hand tool including a handle attached to a blade piece and method of construction. The blade piece includes a blade opposite an elongated tang. The handle is made up of two, welded, symmetrical handle halves, each handle half having an opening for receiving a hang hole piece and a notched distal end for forming a handle opening to receive the blade piece elongated tang. In an embodiment, the handle includes a curved distal end accommodating a curved welded connection between the blade piece and the handle. The hand tool further includes a hang hole piece configured for placement through the hang hole openings in the handle and for welded connection to the handle. In an embodiment, the elongated tang includes a hang hole opening through which the hang hole extends. Some embodiments further include one or more tang guide pieces welded to the interior of the handle.