At least one underfill part is formed so that a central axis of the arm component coincides with a load line of the arm component. The central axis of the configuration is a line connecting centroids of cross-sectional shapes with one another in an axial direction of the arm component, the cross-sectional shapes being shapes on cross-sectional planes perpendicular to an axis of the arm component. The load line of the arm component is a line on which a load is imposed in the arm component.

An automotive component manufacturing method includes a molding process of pressing a portion of a hollow tube formed from a metal material, or a composite material including a metal and a resin, so as to deform the portion of the hollow tube, from a tube outer side toward a tube inner side, to beyond an axial center of the hollow tube, and mold the portion of the hollow tube into a deformed section deformed with a concave profile; and a deformation process of deforming a location having a high level of residual stress in a closed cross-section configured by the deformed section so as to deform the location out-of-plane.

There is provided a control arm comprising a shell-like shell of a first material and a reinforcement of a plastic material, wherein the reinforcement has a flex-element which protrudes therefrom and which can be supported or guided by means of a vehicle structure in order in the event of jounce and/or rebound of the suspension to produce a resilient action equivalent to a conventional spring.

An anti-roll bar link for a vehicle suspension may be positioned between an anti-roll bar and an articulating arm. The link selectively transfers movement of the arm. to the bar, depending on a locked or unlocked state. The link includes a body interfacing a slidable shaft. A valve selectively controls flow of a damping fluid between an inner chamber of the body and a remote chamber. In the locked state, flow of the damping fluid is restricted at least in a direction from the inner chamber to the remote chamber, and movement of the arm is transferred through the link to the bar. In the unlocked state, flow of the damping fluid is permitted in this direction, and movement of the arm causes the shaft to translate with respect to the body such that at least a portion of the movement is not transferred to the bar.

A die 20 used to form a metal tube into a tubular twist beam part 22 having a U-shaped torsion section 66 is provided. The die 20 includes a punch 44 and side form blocks 34 which simultaneously engage a metal tube and form the metal tube into the tubular twist beam part 22. The form blocks 34 have a curved profile which depends on the desired profile of the tubular twist beam part 22 to be formed. The die 20 includes horizontal spacer blocks 38 and vertical spacer blocks 32 restricting movement of the punch 44 and form blocks 34. The spacer blocks 32, 38 can have various different dimensions and can be easily removed and replaced to adjust the closing position of the die 20 and thus form multiple tubular twist beam parts 22 each having a different dimension and different roll rate.

A connecting strut of a motor vehicle having a hollow body which is formed from a fiber reinforced plastic. The hollow body has a first bearing body which is positioned at a first end of the hollow body, and a second bearing body which is positioned at a second end of the hollow body. Straps absorb at least tensile forces, which straps are guided on the bearing bodies and extend, starting from a respective bearing body, along the hollow body in the direction of a respective opposite bearing body. An outer shell is formed from a fiber reinforced plastic and surrounds the hollow body, the bearing bodies and the straps on the outside at least in sections.

A chassis control arm includes a single-piece base body with several hollow chambers. The base body includes a plurality of bearing mounts. A first bearing mount is formed by one of the hollow chambers and traverses the base body to define a first bearing axis which extends in extrusion direction. A second bearing mount in a first end portion of the base body defines a second bearing axis in a direction which deviates from the extrusion direction of the hollow profile. A third bearing mount is positioned in a second end portion of the base body. The base body has a center portion which includes the first bearing mount and is arranged between the first and second end portions. The base body has a first leg extending from the first end portion to the center portion, and a second leg extending from the second end portion to the center portion.

A suspension is provided which can not only generate a damping force between sprung mass and unsprung mass but also steer a wheel. A suspension includes: a shaft coupled to sprung mass of a vehicle, the shaft having a screw groove and a spline groove formed thereon; a ball screw nut assembled to the shaft via a ball; a ball spline nut assembled to the shaft via a ball; a ball screw-specific motor connected to the ball screw nut; a ball spline-specific motor connected to the ball spline nut; and a case coupled to unsprung mass of the vehicle, the case being configured to hold the ball screw-specific motor and the ball spline-specific motor. The ball spline-specific motor rotates the ball spline nut and the shaft relative to the case.

A component part for a motor vehicle having a hollow profile portion of a fiber-reinforced plastic and a load introduction element of a metal material. The hollow profile portion and the load introduction element are connected in a common connection portion via a nondetachable, glued plug-in connection in which an end portion of the load introduction element and an end portion of the hollow profile portion engage in one another by positive engagement. The end portion of the load introduction element has a spline with teeth extending in longitudinal direction of the common connection portion so that the stiffness of the end portion of the load introduction element reduced in longitudinal direction of the common connection portion.

A hollow spring member and hollow spring member production method can be provided, which can save the time and energy necessary for carburization, thus requiring no dedicated carburizing furnace or the like for carburization, and further can make the interior space of a steel tube a rust-prevention atmosphere. A hollow stabilizer for a vehicle includes a steel tube sealed at one end and another end thereof and a carburizing gas sealed in the interior space of the steel tube.