A beam assembly includes a first beam that has a first tubular portion and a first projecting portion that extends from the first tubular portion. A second beam has a second tubular portion and a second projecting portion that extends from the second tubular portion. The elongated interior of the first tubular portion defines a first hollow area and the elongated interior of the second tubular portion defines a second hollow area. The first beam is attached to the second beam with the first projecting portion attached to the second tubular portion and the second projecting portion attached to the first tubular portion to define a third hollow area between the first and second projecting portions.

The present invention relates to a motor vehicle crash box with a working direction in vehicle's longitudinal axis manufactured out of a tube which is expanded into different zones, wherein the zones are different in strength and diameter by using steel after forming a homogenous austenitic microstructure with a strain hardening effect. The present invention further relates to the manufacturing method of such a component.

A beam assembly includes a first beam that has a first tubular portion and a first projecting portion that extends from the first tubular portion. A second beam has a second tubular portion and a second projecting portion that extends from the second tubular portion. The elongated interior of the first tubular portion defines a first hollow area and the elongated interior of the second tubular portion defines a second hollow area. The first beam is attached to the second beam with the first projecting portion attached to the second tubular portion and the second projecting portion attached to the first tubular portion to define a third hollow area between the first and second projecting portions.

A method for joining edges and/or surfaces of a profile in a profiling installation for longitudinally forming a virtually endless material strip into an at least partially closed profile shape. The material strip or profile is formed roll forming tools into a profile which is closed or partially closed, and is fixed in a joining zone, with a longitudinally running joining seam being formed. The profile passes in the joining zone through a joining roller arrangement and/or planar joining arrangement to feed the profile to a joining point and to stabilize the profile there, and/or to ensure that it is dimensionally stable during and after joining. Forces or magnitudes of force components which act on the profile from at least one of the joining rollers and/or a subsection of the planar joining arrangement are detected in the joining zone. A planar joining arrangement and a profiling installation are also provided.

A method of production of a shaped article able to suppress occurrence of shaping defects, that is, a method of production of a shaped article including a first step of press-forming a metal plate (1a) into a U-shape to obtain a U-shaped article (1b) having a bottom part (2) straight extending in a longitudinal direction and a second step of press-forming the U-shaped article (1b) to bend it in the longitudinal direction so that the bottom part (2) of the part projects to the inside and obtain a U-cross-section bent article (1c).

A method for manufacturing a ring includes clamping a first region of a metal sheet against a mandrel, and, while the first region of the metal sheet is clamped against the mandrel, bending the metal sheet around the mandrel to join opposite end faces of the metal sheet and form the ring shaped to the mandrel. A system for manufacturing a ring from a metal sheet includes (a) a mandrel having a ring-shaped surface, (b) a clamp facing the ring-shaped surface and configured to clamp a first region of a metal sheet to the mandrel, and (c) a plurality of dies configured to bend the metal sheet around the mandrel, while the clamp clamps the first region to the mandrel, to join opposite end faces of the metal sheet and form a ring shaped to the ring-shaped surface.

A profiling station, a profiling unit formed therefrom and also a profiling installation continuously form a material strip into a profile. The profiling station includes a rack frame, a profiling arrangement with a forming roller and also a first and a second counter roller as well as a drive assembly. A first roller axis and a second roller axis of the counter rollers form between them a buckling angle, wherein the counter rollers define a bending edge for the material strip to be formed. The first counter roller and also the second counter roller are driven by the drive assembly in such a way that the first counter roller has a circumferential speed at its outer circumference and the second counter roller has a circumferential speed at its outer circumference that are equal to one another.

A manufacturing method of a member according to an aspect of the present invention is a manufacturing method of a member including a specific three-dimensional tubular portion, the manufacturing method including: a U-forming step of performing U-forming on metal material sheet using a U-forming die and punch including a U-forming punch to manufacture a U-formed article having a recessed cross-sectional shape; and an O-forming step of causing side end portions of the U-formed article to abut each other by an O-forming die to form abutting portions, in which a forming condition ratio a=Du/Do is set to 0.85 to 0.95.

A press device includes: a first die having a shape of an elliptical cylinder; a second die having a first recess that forms a part of an elliptical-cylindrical space configured to arrange the first die therein; a third die having a second recess to be combined with the first recess to form the elliptical-cylindrical space; a first press mechanism that inserts the first die along a radial direction of the first die to the first recess of the second die over which the flat metal stock is placed so as to press the metal stock; and a second press mechanism that moves the third die relative to the first die inserted to the first recess so as to confine the first die and the metal stock in the elliptical-cylindrical space formed by the first recess and the second recess.

A process is provided for the continuous production of thin-walled, radially closed hollow profiles composed of nonferrous metals and having a small cross section comprises supply of a flat strip of the metal to a forming apparatus at a first supply speed, the thickness of the strip corresponding to the wall thickness of the hollow profile. The forming apparatus continuous forms the flat strip into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region and are continuously welded by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats an area in a welding region having a diameter of less than 20% of the cross-sectional dimension of the hollow profile. The welded hollow profile is taken off from the welding region and taken up in an uptake device.