A subassembly includes a wheel hub and a constant velocity joint having a bell in which the wheel hub is connected to the bell by friction welding. A first one of the wheel hub and the bell may include an axial projection and the other one of the wheel hub and the bell may include a recess in which the axial projection is received. Also a method of connecting a wheel hub to a constant velocity joint by friction welding.

The present disclosure provides a method of manufacturing a one-piece wheel having a hollow structure for noise reduction. At least one embodiment of the present disclosure provides a method of manufacturing a one-piece wheel having a hollow structure for noise reduction, the method comprising: fabricating, by using one or both of gravity casting and low-pressure casting, an integral casting in which a disk portion and a wheel rim portion are integrally formed, wherein the rim portion includes an annular protrusion radially protruding from an outer circumferential surface; forming at least one cavity by bending the annular protrusion through flow forming to provide a bending portion, resulting in the cavity using the bending portion and one side of the disk portion; and performing a friction stir welding between the one side of the disk portion and one end of the bending portion.

A vehicle wheel including a wavelength tube member may include spokes, a cylindrical rim configured to connect both circumferential portions of the spokes, and a wavelength tube member accommodated on the rim between the first and second circumferential portions of the spokes and configured to cancel sound wave generated in a cavity formed between the rim and a tire, wherein the wavelength tube member may include a rim seating portion being in surface-contact with and accommodated on an external surface of the rim; and a plurality of wavelength tube portions formed on the rim seating portion.

Provided is a non-rotational advertisement member assembly for being mounted on a wheel of a vehicle which includes: a connecting body mediating coupling to a wheel of a vehicle, and rotated interlocked using the rotation axis of the wheel as a coaxial axis; a transparent housing forming a predetermined floating space between itself and the connecting body as well as rotated interlocked with the connecting body by being coupled to the connecting body so as to completely seal the gap between the predetermined floating space and an external space; and an advertisement member floating part having a center of gravity formed relatively lower in the predetermined floating space, and rotated relatively to the transparent housing and the connecting body which are rotated interlocked with the wheel while being coupled so as to avoid rotation and movement while maintaining the center of gravity.

A method for joining first and second axle components is provided. In one example, the method includes forming an aperture in a first axle component that is mounted to a second axle component, where the aperture has a chamfer at one end thereof, inserting an object into the aperture, and resistance welding the aperture while applying pressure to the object so that the object fills the chamfer.

A process for manufacturing a light-alloy hybrid wheel, implements the following separate operation phases: making a flange with an internal profile capable of constituting a tire bead seat; making a rim with, on one side, an outer profile capable of constituting a tire bead seat and, on the other side, a circular flank for assembly with a part of the flange; and assembling the flange with the rim, at the seat of said flange and the circular flank of the rim. The rim is made according to the following consecutive operations: an operation of manufacturing a circular flank; then an operation of expanding said circular flank to the size of the final rim in a single step; then an operation of cold or hot flospinning of said circular flank so as to obtain the rim in the final shape and profile thereof, comprising a shoulder only on the side that will not be welded to the flange.

A method for manufacturing a one-piece wheel by forging includes: producing an integral forging comprising: a disc portion, a rim portion, and an annular protrusion protruding from one side of the disc portion in a forging method; producing an outer bend by bending the annular protrusion through a flow-forming process; and forming a hollow portion by welding one end of the outer bend to one side of the rim portion. The method manufactures the one-piece wheel having stronger shear strength and stiffness and better fatigue life even while reducing the noise using the forging method.

An axle housing assembly and a method of manufacture. A friction weld may join a spindle to an arm portion of the axle housing assembly. An extension weld may encircle the arm portion. The extension weld may extend from the friction weld in a direction that may extend away from the spindle.

Disclosed are modular mechanical assemblies formed from durable, corrosion resistant components with sufficient strength to maintain efficient operation. The modular mechanical assemblies include a novel torsion axle assembly having a cartridge that houses a torsion bar with a splined tip. A load bearing, relatively incompressible bushing is optionally disposed about the torsion bar. The cartridge is inserted into an axle tube, and an end cap is placed over the cartridge and torsion bar. The end cap is affixed to the axle tube such that the bushing is secured within a bore in the end cap. The torsion bar tip extends through the bushing and end cap and is secured within a torsion arm. A spindle is also secured within the torsion arm. One or more components of the torsion axle assembly are made from a low alloy, medium carbon steel material that provides corrosion resistance and advantageous yield and ultimate strength properties. One or more components of the assembly can also be coated to improve corrosion resistance. Suitable coating techniques include, but are not limited to liquid ferritic nitrocarburizing, gas nitriding, electroless nickel plating, or a diamond like carbon coating process.

The present invention relates to a motor vehicle trailer with at least one rigid axle with at least one tubular element. The motor vehicle trailer is characterized in that the tubular element has a yield strength Rp0.2 of at least 600 MPa, a tensile strength Rm of at least 850 MPa, a breaking elongation A5 of at least 14% and the tubular element (10) consists of an air-hardening, mainly bainitic material. In addition, a chassis axle as well as the use of a material for a chassis axle is disclosed.