A vehicle drivetrain assembly, and method for making the assembly, including first and second torque transmitting members, one of which is made of aluminum and the other of which is made of steel, and being joined by an electromagnetic pulse weld progressively applied along a radial direction relative to a central axis of the assembly.

A bumper assembly is provided. The bumper assembly includes a back beam that is disposed within a bumper to absorb an external impact and a collision box that has a hollow tube shape. A first end portion of the collision box is coupled to the back surface of the back beam to receive an impact applied to the back beam and a plate is coupled to a second end portion of the collision box. In particular, the collision box is bonded with the back beam and the plate by an electro magnetic pulse technology method.

A bumper assembly is provided. The bumper assembly includes a back beam that is disposed within a bumper to absorb an external impact and a collision box that has a hollow tube shape. A first end portion of the collision box is coupled to the back surface of the back beam to receive an impact applied to the back beam and a plate is coupled to a second end portion of the collision box. In particular, the collision box is bonded with the back beam and the plate by an electro magnetic pulse technology method.

An electromagnetic crimp terminal includes an electric wire and a terminal plate. The electric wire includes a conductor portion, an insulation portion which covers the conductor portion, and an exposed portion which is a part of the conductor portion exposed from the insulation portion. The terminal plate includes a crimped portion. The crimped portion is crimped onto the exposed portion. The crimped portion includes a first side edge and a second side edge. A vicinity of the first side edge and a vicinity of the second side edge overlap each other.

Method for manufacturing a vehicle wheel, comprising the following steps: providing a rim made of metal sheet, providing a disc made of metal material, comprising a cover part and a connection part, protruding axially from the cover part, wherein on the connection part is obtained a plurality of recesses, distributed in the circumferential direction of the connection part, interference-fitting the connection part of the disc to a radially inner surface of the rim, and applying a magnetic pulse to deform areas of the rim respectively superimposing the recesses of the connection part, so that the disc is held in rotation and axially by said deformed areas of the rim.

A method for thermally joining thermoplastic fiber composite components, including jointly covering thermoplastic fiber composite components to be joined, at least in the region of a joining zone, with a pressurization arrangement, which is flexible, at least in some section or sections, and extensive pressurization of thermoplastic fiber composite components to be joined by the pressurization arrangement, with the result that the fiber composite components are pressed against one another, at least in the joining zone. The fiber composite components are welded in the joining zone during pressurization. The pressurization is maintained by the pressurization arrangement until the joining zone solidifies. A cover is also disclosed, in particular a mold or diaphragm, for a pressurization device for thermally joining thermoplastic fiber composite components, and an apparatus for thermally joining thermoplastic fiber composite components.

A non-magnetic member 32, a first magnetic member 34 and a second magnetic member 36 are prepared. The first magnetic member 34 and the second magnetic member 36 are connected to the non-magnetic member 32. Then, a first bonding portion 56 and which bonds the non-magnetic member 32 and the first magnetic member 34 to each other, and a second bonding portion 60 which bonds the non-magnetic member 32 and the second magnetic member 36 to each other are formed. A hot isostatic pressing process is performed to the non-magnetic member 32, the first magnetic member 34 and the second magnetic member 36 to establish diffusion-bond. Thereafter, the non-magnetic member 32, the first magnetic member 34 and the second magnetic member 36 are hollowed, and the first bonding portion 56 and the second bonding portion 60 are removed. Thereafter, the non-magnetic member 32 becomes a non-magnetic body 26, the first magnetic member 34 becomes a first magnetic body 28, the second magnetic member 36 becomes a second magnetic body 30 and a sleeve 10 is obtained.

A method for the magnetic pulse soldering of an item having a stack of sheets consisting of a metal material. At least one hole through a thickness of the stack is formed. The first and second plates, both consisting of a metal material, are arranged on either side of the stack. A covering area covering at least one through-hole is formed. The plates-stack assembly is positioned opposite an active part of a coil such that a working area of the covering area faces the active part of the coil and the working area covering at least one hole. The working area is subjected to a magnetic field until the assembly is joined. While the working area is subjected to the magnetic field, pressure is exerted on the first plate, in the region of at least one hole, pressing the first plate against the second plate.

A method for the magnetic pulse soldering of an item having a stack of sheets consisting of a metal material. At least one hole through a thickness of the stack is formed. The first and second plates, both consisting of a metal material, are arranged on either side of the stack. A covering area covering at least one through-hole is formed. The plates-stack assembly is positioned opposite an active part of a coil such that a working area of the covering area faces the active part of the coil and the working area covering at least one hole. The working area is subjected to a magnetic field until the assembly is joined. While the working area is subjected to the magnetic field, pressure is exerted on the first plate, in the region of at least one hole, pressing the first plate against the second plate.

A method for joining two tubular parts, an internal part and an external part, by magnetic pulses. The external part includes an annular wall having an outer surface. Over a longitudinal portion of the external part, a thickness of the annular wall of the external part is reduced such that the annular wall has a decreasing thickness over the longitudinal portion. The tubular parts are positioned one inside the other to form an overlap region covering the longitudinal portion. The tubular parts are positioned next to a coil such that the longitudinal portion is disposed opposite an active part of the coil. The two tubular parts are connected by magnetic pulses.