A method of producing an endless metal ring by butting and welding ends of a steel plate includes a welding process in which, while the ends of the steel plate are heated at a temperature lower than a melting temperature, the ends are pressed against each other and welded by butt welding; and a heat treatment process in which heating is performed at an austenite transformation temperature or lower after the welding process.

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 (NiP) alloy containing 5 to 7 weight percent phosphorus. Resistive heating includes reacting the NiP alloy with an electric current to generate concentrated heat localized between adjacent battery tabs such that the NiP alloy undergoes solid-state bonding with the Cu in the first batter tab.

Systems and methods for producing mesh from wires or rods with programmed changeable steps for the longitudinal and transverse wires. The longitudinal wires (1) and the transverse wires (12) may be fed from coils or be precut. The longitudinal wires are fed in receptacles (2) on carriers (3) with the carriers being found on prefeeder carrier (4), a feeder carrier (6) with grippers (7) transports them towards the welding heads (10) and the produced mesh (20) is received by a mesh carrier (14). The carriers (3) with the receptacles (2) for the longitudinal wires on the prefeeder carrier (4), the grippers for the longitudinal wires (7) at the feeder carrier (6) and the welding heads (10) are displaced in the direction of the transverse wire without restrictions, generally in an unrestricted fashion, so as to correspond to the longitudinal wires being subjected to welding. The transverse wires are fed towards the welding heads to be welded with the longitudinal wires. The machine produces meshes with openings, grouping the longitudinal wires in groups and feeding the groups of longitudinal wires towards the welding heads, adjusting the position of the related mechanisms to the position of the longitudinal wires.

Systems and methods for producing mesh from wires or rods with programmed changeable steps for the longitudinal and transverse wires. The longitudinal wires (1) and the transverse wires (12) may be fed from coils or be precut. The longitudinal wires are fed in receptacles (2) on carriers (3) with the carriers being found on prefeeder carrier (4), a feeder carrier (6) with grippers (7) transports them towards the welding heads (10) and the produced mesh (20) is received by a mesh carrier (14). The carriers (3) with the receptacles (2) for the longitudinal wires on the prefeeder carrier (4), the grippers for the longitudinal wires (7) at the feeder carrier (6) and the welding heads (10) are displaced in the direction of the transverse wire without restrictions, generally in an unrestricted fashion, so as to correspond to the longitudinal wires being subjected to welding. The transverse wires are fed towards the welding heads to be welded with the longitudinal wires. The machine produces meshes with openings, grouping the longitudinal wires in groups and feeding the groups of longitudinal wires towards the welding heads, adjusting the position of the related mechanisms to the position of the longitudinal wires.

A method includes forming a first pocket in a first sheet of material and a second pocket in a second sheet of material, pressing the first pocket and the second pocket together at a nonlinear interface, and welding material of the first pocket and the second pocket at the interface.

A method includes forming a first pocket in a first sheet of material and a second pocket in a second sheet of material, pressing the first pocket and the second pocket together at a nonlinear interface, and welding material of the first pocket and the second pocket at the interface.

A sensor element includes: an element body including, for example, a thermistor; paired lead wires drawn out from the element body; and stranded wires that are each obtained by twisting a plurality of core wires and are joined to the respective paired lead wires in a welding region. The welding region includes a main joining region provided in a predetermined region in an axis direction, and sub joining regions adjacent to the main joining region, and joining strength of each of the lead wires and the corresponding stranded wire is higher in the main joining region than in the sub-joining region.

A sensor element includes: an element body including, for example, a thermistor; paired lead wires drawn out from the element body; and stranded wires that are each obtained by twisting a plurality of core wires and are joined to the respective paired lead wires in a welding region. The welding region includes a main joining region provided in a predetermined region in an axis direction, and sub joining regions adjacent to the main joining region, and joining strength of each of the lead wires and the corresponding stranded wire is higher in the main joining region than in the sub-joining region.

A joining apparatus for panel sheets and a joining method for panel sheets using the same are provided. The joining apparatus includes an element punching device which stores and supplies elements according to a specification of a panel sheet and inserts the element into a first panel sheet among different types of panel sheets. Additionally, a welding device resistively welds a part of the first panel sheet into which the element is inserted by the element punching device.

A repair pin-stud used in processes for repairing panels, such as honeycomb panels. The repair pin-stud includes a cylindrical stud member, a tip on a first end of the cylindrical stud member, and an elongated installation member connected to a second end of the cylindrical stud member. The repair pin-stud further includes a tubular pin concentric with the cylindrical stud member. A first end of the tubular pin is connected to the cylindrical stud member, and a second end of the tubular pin is open and the elongated installation member extends outwardly from the second end of the tubular pin.