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.

A composite engine component comprises a body having an outer circumferential surface and an inner circumferential surface. The body of the engine component is of unitary, integral, one-piece construction and comprises a radially inner section and a radially outer section having different material compositions. The radially inner section and the radially outer section of the body are welded together using a magnetic pulse welding process in which a metallurgical bond is formed along a bonding interface between the inner and outer sections of the body.

A composite engine component comprises a body having an outer circumferential surface and an inner circumferential surface. The body of the engine component is of unitary, integral, one-piece construction and comprises a radially inner section and a radially outer section having different material compositions. The radially inner section and the radially outer section of the body are welded together using a magnetic pulse welding process in which a metallurgical bond is formed along a bonding interface between the inner and outer sections of the body.

An elongate tape (10) acts as a vaporizing actuator for impulse metalworking. It has an electrically-insulative base layer (20), an electrically-conductive layer (30), and an electrically-insulative top layer (40). In it, the base layer is characterized by the length of the tape and a first width W1, as measured between a pair of side edges. The conductive layer is characterized by the length of the tape and a second width W2, as measured between a pair of side edges; and the top layer is characterized by the length of the tape and a third width W3, as measured between a pair of side edges. The layers are joined to each other to form the elongate tape with the electrically-conductive layer interposed between the electrically-insulative base and top layers.

A method of assembling a first part made from a metal and a second part includes providing a first part comprising an assembly surface, and a second part comprising at least one through orifice. At least part of the second part is arranged on the assembly surface such that the orifice extends across from the assembly surface. A metal connecting part is positioned on the orifice to cover the orifice across from the assembly surface. The connecting part and/or the assembly surface are projected on one another to obtain high-speed plating and welding between the connecting part and the surface part.

A method of assembling a first part made from a metal and a second part includes providing a first part comprising an assembly surface, and a second part comprising at least one through orifice. At least part of the second part is arranged on the assembly surface such that the orifice extends across from the assembly surface. A metal connecting part is positioned on the orifice to cover the orifice across from the assembly surface. The connecting part and/or the assembly surface are projected on one another to obtain high-speed plating and welding between the connecting part and the surface part.

A method for forming an impact weld used in an additive manufacturing process is provided. The method includes providing a metallic material for impact welding to a substrate. The metallic material is propelled toward the substrate with a sufficient velocity to form an impact weld for welding the metallic material to the substrate. Further, the method includes traversing the substrate in a direction relative to a direction from which the metallic material is propelled and repeating the propelling so that a layer of additive material is deposited on the substrate as desired. In addition, a method for forming an impact welding used in an additive manufacturing process via discharge actuated arrangement is provided.

Provided is a method of connecting an austenitic steel pipe with a ferritic steel pipe. The method comprises providing the austenitic steel pipe and the ferritic steel pipe, such that an inner end section of the austenitic steel pipe has an outer diameter smaller than an inner diameter of an outer section of the ferritic steel pipe, inserting the inner end section into the outer end section, such that the inner and outer end sections overlap in a connection region, and welding the inner and outer end sections in the connection region by explosive welding or magnetic pulse welding. Further, a linear quench exchanger and a processing arrangement for processing a process fluid are provided.

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 method for forming an impact weld used in an additive manufacturing process. The method includes providing a wire having a powder filler metal core located within a sheath. The wire is then inserted within a conduit having an opening. Further, the method includes providing at least one energy pulse that interacts with the sheath to pinch off at least one segment of the wire, wherein the energy pulse causes propulsion of the segment toward a substrate with sufficient velocity to form an impact weld for welding the metal core to the substrate. In particular, the energy pulse is an electromagnetic pulse, a laser energy pulse or a high electric current pulse.