Abstract: A process for manufacturing monobloc vehicle wheels. A roughly shaped arte having the general configuration of a cylindrical disc is further formed in a sequence of steps including die stamping and widening in a press to form the final shape in preparation for finishing operations by conventional mechanical machining. These wheels which may be formed from light aluminum based alloys are especially suitable for large vehicles equipped with pneumatic tires.

Abstract: A process for manufacturing monobloc wheels for vehicles from a roughly sed article having the shape of a cylindrical disc. A sequence of die stamping and rotary extrusion operations is carried out on the disc to arrive at the definitive shape, which does not require more than a few finishing operations by mechanical machining. These wheels which may in particular be made of light, aluminum-based alloys, are especially suitable for large tanker vehicles equipped with tubeless tires.

Abstract: The invention relates to a method of making one-piece wheels for large locarrying vehicles. Starting from a blank in the form of a cylindrical disc, the minor flange of the rim and the wheel disc are formed by hot stamping, while the major flange of the rim is obtained by press-forming from a tube section. The two parts are assembled by welding. The production cycle terminates in a few finishing operations by machining. These wheels, which may be made in particular of lightweight aluminum-based alloys, are particularly suitable for large load-carrying vehicles fitted with tubeless tires.