A heat-resistant weld backing tape for placement between a backing member and a workpiece to be welded at a root gap. The weld backing tape includes a flexible tape substrate. The tape substrate has a longitudinal length that extends between first and second tape substrate ends, and a lateral width that extends between first and second tape substrate side edges. The tape substrate has a substantially planar first face and a substantially planar second face. The first and second tape substrate faces are mutually parallel and spaced from each other by a tape substrate thickness. The tape substrate length and the tape substrate width are substantially larger than the tape substrate thickness. A heat-resistant material is disposed on the first tape substrate face and arranged to face the workpiece during welding. An adhesive material is disposed on the second tape substrate face and arranged to face the backing member during welding.

Weldable adhesive compositions that dampen noise or vibration are described. In addition, various tape products that include the adhesive compositions are described. Also described are various methods of damping noise or vibration by use of the adhesive compositions and tapes. In addition, vibration damping assemblies utilizing the adhesives are described.

Weldable adhesive compositions that dampen noise or vibration are described. In addition, various tape products that include the adhesive compositions are described. Also described are various methods of damping noise or vibration by use of the adhesive compositions and tapes. In addition, vibration damping assemblies utilizing the adhesives are described.

A method of joining a multiple member work-piece includes providing a first steel work-piece having a first thickness and a second steel work-piece having a second thickness. The first thickness is at least twice the second thickness. A third material is disposed in contact with the second steel work-piece. For example, the third material may be in the form of a rivet, a plurality of pins, or a coating material. The method includes resistance welding the first and second work-pieces together. A bonded assembly includes the first and second steel members and the third material being bonded together, where the thickness of the first member is at least twice the thickness of the second member.

The present invention relates to a band-like joint tape for covering a butting portion formed by butting an end portion of a one packing film to an end portion of another packing film and connecting the respective end portions of these packing films to each other. The joint tape is comprised of a laminate film formed by adhering a joint layer to a support layer at a peelable state, and covered so as to face the joint portion. to the butting portion and heat-sealed so that the joint layer is fused to the butting portion and the fused portion of the joint layer is peeled off from the support layer.

A heat-resistant weld backing tape for placement between a backing member and a workpiece to be welded at a root gap. The weld backing tape includes a flexible tape substrate. The tape substrate has a longitudinal length that extends between first and second tape substrate ends, and a lateral width that extends between first and second tape substrate side edges. The tape substrate has a substantially planar first face and a substantially planar second face. The first and second tape substrate faces are mutually parallel and spaced from each other by a tape substrate thickness. The tape substrate length and the tape substrate width are substantially larger than the tape substrate thickness. A heat-resistant material is disposed on the first tape substrate face and arranged to face the workpiece during welding. An adhesive material is disposed on the second tape substrate face and arranged to face the backing member during welding.

A heat-resistant weld backing tape for placement between a backing member and a workpiece to be welded at a root gap. The weld backing tape includes a flexible tape substrate. The tape substrate has a longitudinal length that extends between first and second tape substrate ends, and a lateral width that extends between first and second tape substrate side edges. The tape substrate has a substantially planar first face and a substantially planar second face. The first and second tape substrate faces are mutually parallel and spaced from each other by a tape substrate thickness. The tape substrate length and the tape substrate width are substantially larger than the tape substrate thickness. A heat-resistant material is disposed on the first tape substrate face and arranged to face the workpiece during welding. An adhesive material is disposed on the second tape substrate face and arranged to face the backing member during welding.

A method of adhesive weld bonding a light metal workpiece and a steel workpiece is disclosed that includes applying a plurality of discrete adhesive ribbons to a faying surface of the light metal workpiece, the faying surface of the steel workpiece, or both faying surfaces, and then assembling the workpieces together to establish one or more adhesive zones between the faying surfaces of the light metal and steel workpieces and a plurality of adhesive free zones amongst the adhesive zone(s). The method further includes forming a resistance spot weld that bonds the the light metal workpiece and the steel workpiece together at a spot weld location within one of the adhesive free zones. The formed spot weld includes a weld joint contained within the light metal workpiece that bonds to the faying interface of the steel workpiece.

A method of adhesive weld bonding a light metal workpiece and a steel workpiece is disclosed that includes applying a plurality of discrete adhesive ribbons to a faying surface of the light metal workpiece, the faying surface of the steel workpiece, or both faying surfaces, and then assembling the workpieces together to establish one or more adhesive zones between the faying surfaces of the light metal and steel workpieces and a plurality of adhesive free zones amongst the adhesive zone(s). The method further includes forming a resistance spot weld that bonds the the light metal workpiece and the steel workpiece together at a spot weld location within one of the adhesive free zones. The formed spot weld includes a weld joint contained within the light metal workpiece that bonds to the faying interface of the steel workpiece.

A component comprising a first outer region (11), at least one intermediate region (13) and a second outer region (12). The outer regions (11, 12) have a higher density and/or a higher elastic modulus than the at least one intermediate region (13). A polymer composition (21) can, preferably, be injected into the component (1) such that a mechanical connection (41) is fixed or can be fixed in the polymer composition (21). A method, a kit and the use thereof are also disclosed.