A beam configured to couple to a vehicle includes end areas comprising end midpoints that are equidistant from a top face and a bottom face on a vertical axis when the beam is positioned on a vehicle, and a central area positioned between the end areas, the central area having a central area midpoint that is equidistant from the top face and the bottom face on the vertical axis when the beam is positioned on a vehicle and that is positioned in the center of the beam along the longitudinal axis. The longitudinal axis of the beam passes through the end area, wherein the central area is capable of rotating about the longitudinal axis when the beam is impacted by an applied force.

A method for joining a first part formed of an aluminum material to a second part formed of a steel material by metal inert gas welding and cold metal transfer is provided. An aluminum filler material forms a fillet joint between the parts and provides a structure for automotive body applications, such an aluminum bumper extrusion joined to a steel crush box connection. The first part includes a notch for hiding the start and end of the joint. A transition plate formed of a mixture of aluminum material and steel material can be disposed between the first part and the second part to provide the notch. The second part can include a mechanical fastener further joining the parts together. In another embodiment, the second part includes a plurality of dimples and is welded to the first part along the dimples.

The invention relates to a bumper (10) for a motor vehicle, with a crossmember element (20) which has preferably two homogeneous outer sections (12, 13) and a central section (11) differing from the outer sections (12, 13), wherein the central section (11) is displaced vertically downwards or upwards with respect to the two outer sections (12, 13). According to the invention, provision is made that the crossmember element (20) is constructed as an extrusion and in that at least one of the sections (11 to 13) has at least one additional element (35, 38, 39) arranged monolithically with the crossmember element (20).

The disclosure relates to a crossmember for arranging on a motor vehicle, wherein the crossmember is formed in two parts from a profile, which is open on one side, as seen in cross section, and from a closing panel, each being made of metallic material, and the crossmember and the closing panel are coupled to one another, wherein the closing panel is produced in the form of an extruded light-metal component, wherein an extrusion direction is oriented transversely to the longitudinal extent of the crossmember and, as seen in the longitudinal extent of the crossmember, the closing panel has regions of different wall thicknesses.

A bumper reinforcement includes a body part extending in a vehicle width direction, and a terminal part, which extends in the vehicle width direction, is attached to an end part of the body part in a longitudinal direction, and is joined to the body part in a state of being superimposed on the end part of the body part. Rigidity of the end part of the body part in the longitudinal direction is lower than rigidity of a center part of the body part in the longitudinal direction.

Motor vehicle hybrid structural part, comprising a main structural part 2 and at least one reinforcement patch the main structural part 2 being embodied as a sheet-metal structural part made of a steel alloy or light metal alloy and the reinforcement patch being made of light metal, which is characterized in that the reinforcement patch is an extruded structural part with at least two wall thicknesses differing from one another in cross section.

A bumper crossmember for a vehicle having a first crossmember provided by an outer shell facing away from the vehicle and an inner shell facing toward the vehicle, which two shells are connected to one another along their circumference. This crossmember has at least one passage oriented in the direction of its longitudinal extension and extending over its middle with respect to its longitudinal extension (y direction), and by which the crossmember is divided into an upper hollow chamber section and a lower hollow chamber section. Crash boxes arranged at distance from one another are connected to the lower hollow chamber section on its side facing the vehicle. The bumper crossmember has a second lower crossmember spaced apart in the z direction from the lower hollow chamber section and connected by at least two connector parts to the lower hollow chamber section of the first crossmember. Crash boxes arranged at a distance to one another are connected on the side of the second crossmember facing the vehicle.

A vehicle bumper assembly includes a bumper beam and a crash box. At least one of the bumper beam or the crash box is cast from metal, such as aluminum or magnesium, to reduce weight, reduce manufacturing process steps, and improve performance characteristics of the bumper assembly. In an embodiment, both of the bumper beam and the crash box are cast from metal to establish an integral connection therebetween. One of the bumper beam or the crash box can be open along a top and bottom portion of the bumper assembly and include at least one reinforcing rib cast integral therewith. In an embodiment, both of the bumper beam and the crash box can be open along a top and bottom portion of the bumper assembly and each include at least one reinforcing rib cast integral therewith.

An energy-absorbing structure includes first and second components. The first component includes a polymer and a plurality of reinforcing fibers disposed therein. The first component includes first bumper and crush member portions respectively defined by first and second walls. The second wall projects from and is integrally formed with the second wall. At least some of the fibers continuously extend between the first and second walls. The second component includes the polymer and a plurality of reinforcing fibers. The second component includes second bumper and crush member portions respectively defined by third and fourth walls. The fourth wall projects from and is integrally formed with the third wall. At least some of the fibers continuously extend between the third and fourth walls. The first and second components are joined. The first and third walls cooperate to define a bumper. The second and fourth walls cooperate to define a crush member.

A cast component, in particular for a vehicle, has a surface structuring arranged on at least one wall portion of the cast component. The surface structuring forms a surface of the wall portion, and stiffens the wall portion. The surface structuring is formed by a plurality of evenly shaped depressions in the surface of the wall portion, which depressions are mutually spaced apart, leaving interconnected webs, and produce tapered sections on the wall portion.