A fuel rod for a nuclear reactor, including a cladding tube having a first end with an annular end face, a second end with an annular end face, and a cylindrical body portion extending therebetween, and a first tube end plug including a front portion, an annular lip with an annular end face, and a substantially straight cylindrical body portion extending therebetween, wherein the surface area of the annular end face of the first end of the cladding tube and the annular end face of the annular lip of the first tube end plug are substantially equal, and the annular end face of the first end of the cladding tube and the annular end face of the annular lip of the first tube end plug are connected by a resistance pressure weld.

A welded steel door including a pan having a bottom surface forming a first face of the door and flanges extending on opposite edges thereof forming opposite side edges of the door, the flanges having a lid engaging surface spaced from the bottom surface, a lid having a top surface forming a second face of the door opposite the first face, opposite edges of the top surface each having a hem mated with a respective lid engaging surface of each flange, the hem including a portion of the top surface folded back on itself, and a plurality of welds securing the lid to the pan. The welds extend between the portion of the top surface of the lid folded back on itself of each hem and the respective lid engaging surface of each flange and are thereby concealed.

A method for manufacturing a joined article, the method including providing a first metal member E (ST1), providing a second metal member D, the second metal member D reaching a melting point before the first metal member E when the second metal member D is brought into contact with the first metal member E and an electric current is applied between the two metal members (ST2), preheating the first metal member E using a high-frequency induced electric current (ST3), applying pressure on the first metal member E and the second metal member D (ST4), applying an electric current between the first metal member E and the second metal member D at a timing at which a temperature of the first metal member E has reached a prescribed temperature TS4 due to the preheating (ST5), and joining the first and second metal members E and D through the application of pressure and the application of an electric current (ST4, ST5). Through the adoption of such a method, the present invention provides: a method for manufacturing a joined article in which joint length is adequate even when metals are joined together that are such that, for example, one reaches a melting point before the other during electric current joining; and a joining apparatus for joining such metal members together.

The disclosure relates to a tip member configured to be coupled to a blade structure for a turbomachine. A body of the tip member includes: a first surface configured to engage a radially outboard end of the blade structure, a second surface positioned opposite the first surface, and at least one perimeter sidewall positioned between the first and second surfaces, wherein the at least one perimeter sidewall has an airfoil cross-section; and an opening passing through the body from the first surface to the second surface, and having a single directional orientation therebetween, wherein the opening is sized to receive a post positioned on the radially outboard end of the blade structure.

A manufacturing method of an electric wire bundle includes arranging the conductor core wire of a first electric wire among the plurality of electric wires from which the conductor core wire is exposed at a processing position of a welding machine, arranging a second electric wire of the plurality of electric wires at the processing position so as to align an end position of the conductor core wire of the second electric wire with an end position of the conductor core wire of the first electric wire, performing a welding process to the conductor core wire of the first electric wire and the conductor core wire of the second electric wire by the welding machine to form a preliminary welding portion, and forming the core wire welding portion by repeating processes for all of the plurality of electric wires.

A manufacturing method of an electric wire bundle includes arranging a conductor core wire of a first electric wire at a processing position of a welding machine, arranging a second electric wire at the processing position so as to align an end position of a conductor core wire of the second electric wire with an end position of the conductor core wire of the first electric wire, forming a welding process to the conductor core wire of the first electric wire and the conductor core wire of the second electric wire by the welding machine to form a preliminary welding portion, forming the core wire welding portion by repeating processes for all of the plurality of electric wires, and controlling a magnitude of an energy used in the welding process based on characteristics of conductor core wires to be welded by the welding machine.

Provided is a joint component manufacturing method for reducing occurrence of burrs upon bonding between a first member having a hole and a second member having a shaft portion and firmly bonding both members. In the method for manufacturing a joint component 100, a hole-side weak press-fit portion 112 is formed at a hole 111 of a flat plate ring-shaped first member 110. Moreover, each of a shaft-side weak press-fit portion 122 and a shaft-side strong press-fit portion 124 is formed at a shaft portion 121 of a cylindrical second member 120. The hole-side weak press-fit portion 112 and the shaft-side weak press-fit portion 122 are defined by a first weak press-fit interference Lw1 formed thinner than a first strong press-fit interference Ls1. The shaft-side strong press-fit portion 124 is defined by a first strong press-fit interference Ls1 as the minimum necessary press-fit interference for electric resistance welding upon electric resistance welding between the hole 111 and the shaft portion 121.

The present invention relates to an electric resistance welder that includes a compressor, a welding holder, and a welding rod, wherein air compressed by the compressor may be introduced into the welding rod through the welding holder and is then discharged through air outlets formed in the welding rod.

A method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer and the metal layers are material closured to each other by a tack weld on the metallic contacts between the metallic layers to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions.

A method for resistance welding a first component to a second component including inserting the second component, at least by a connecting region, into an opening of the first component by a insertion distance and welding the first component to the second component in the process. An internal dimension of the opening and an external dimension of the connecting region are configured similar to a press fit with each other. The insertion distance is limited by an adjustable external distance limiter. A device is configured for resistance welding the first component to the second component.