A method for assembling a ring inside a tubular component by magnetic pulse welding. The thickness of the wall of the tubular component is reduced to form a trapezoidal recess on the periphery of a longitudinal portion of the tubular component. A ring is positioned around the tubular component facing the recess. The ring has a shape that compliments that of the recess. The assembly made up of tubular component and ring is positioned in an opening of a coil such that the ring is positioned facing the coil. The assembly is welded using magnetic pulses generated by the coil.

A method for assembling a ring inside a tubular component by magnetic pulse welding. The thickness of the wall of the tubular component is reduced to form a trapezoidal recess on the periphery of a longitudinal portion of the tubular component. A ring is positioned around the tubular component facing the recess. The ring has a shape that compliments that of the recess. The assembly made up of tubular component and ring is positioned in an opening of a coil such that the ring is positioned facing the coil. The assembly is welded using magnetic pulses generated by the coil.

A molding method according to the present invention is a method of molding a composite material including a first member, a second member, and a reinforcement member interposed between the first member and the second member, the method including a first step of disposing the reinforcement member between the first member and the second member, and a second step of causing the first member to collide with the second member by a predetermined urging force after the reinforcement member is disposed, thus joining the first member and the second member with the reinforcement member interposed between the first member and the second member. The composite material has a thickness of 0.01 mm or more and 1 mm or less.

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

An electromagnetic pulse welding coil includes a first conductive region and a second conductive region. The second conductive region is assigned to a remainder of the coil and has a low current density. The first conductive region is configured for generating a higher current density than the second conductive region. The first conductive region is detachably connected to the remainder of the coil using a detachable connection. The electromagnetic pulse welding coils is planar in design and is cut out of a metal plate.

An electromagnetic pulse welding coil includes a first conductive region and a second conductive region. The second conductive region is assigned to a remainder of the coil and has a low current density. The first conductive region is configured for generating a higher current density than the second conductive region. The first conductive region is detachably connected to the remainder of the coil using a detachable connection. The electromagnetic pulse welding coils is planar in design and is cut out of a metal plate.

A structure and a method of creating the structure in which relatively thin pieces of non-weldable aluminum alloy or other non-weldable material are welded together. First layers of a weldable material, such as a weldable aluminum alloy or other weldable material, having a total thickness of between 0.01 and 0.30 inches, are built up on a surface of the first piece using an ultrasonic or other solid state joining technique, and second layers of the weldable material having a similar total thickness are built up on a surface of the second piece using the same technique. The first piece is then welded to the second piece at the first and second layers of weldable material using a fusion welding technique. The resulting structure may be part of an aircraft, landcraft, watercraft, or spacecraft type of vehicle or may be used in other high-performance applications.

A structure and a method of creating the structure in which relatively thin pieces of non-weldable aluminum alloy or other non-weldable material are welded together. First layers of a weldable material, such as a weldable aluminum alloy or other weldable material, having a total thickness of between 0.01 and 0.30 inches, are built up on a surface of the first piece using an ultrasonic or other solid state joining technique, and second layers of the weldable material having a similar total thickness are built up on a surface of the second piece using the same technique. The first piece is then welded to the second piece at the first and second layers of weldable material using a fusion welding technique. The resulting structure may be part of an aircraft, landcraft, watercraft, or spacecraft type of vehicle or may be used in other high-performance applications.

An electromagnetic forming device for an aluminum tube member, the electromagnetic forming device including: a jig plate in which a support member that has a through hole has been fixed to a substrate; and a tube insertion mechanism that inserts a tube member into the through hole in the support member. The electromagnetic forming device also includes: a coil unit that has an electromagnetic-forming coil part; a coil movement mechanism that supports the coil unit; a current supply part that supplies current for electromagnetic forming to the electromagnetic-forming coil part; and a jig plate transport mechanism that transports the jig plate from a tube insertion stage ST1 to a tube expansion stage ST2.