A method for manufacturing a vehicle wheel includes: a casting process of manufacturing the wheel in a one-piece body having a forming end and a temporary flange protruding at inner and outer sides of the wheel, respectively, wherein the one-piece body further includes a resonance chamber forming groove; a primary shape machining process of forming a stepped part at an outer circumferential side of the resonance chamber forming groove; a flow forming process of bending the forming end to be seated on the stepped part; a friction stir welding process of integrally bonding a portion where the forming end and the stepped part are in close contact with each other; a fine machining process of removing the temporary flange;

and a sound-absorbing hole machining process of forming a sound-absorbing hole for communicating between the resonance chamber and an interior space of a tire in the forming end.

A wheel intended for a motor vehicle includes a rim made of a sheet of aluminium alloy that is fastened to the contour of a wheel disc made from a steel sheet by assemblies that connect the aluminium sheet of the rim and the steel sheet of the wheel disc, which overlap one another. The assemblies include connecting pins each of which has a tip that passes through a hole in the aluminium sheet of the rim, the front end of which is welded to the steel sheet of the wheel disc, and a rear head that presses against the aluminium sheet of the rim about said hole.

A wheel intended for a motor vehicle includes a rim made of a sheet of aluminium alloy that is fastened to the contour of a wheel disc made from a steel sheet by assemblies that connect the aluminium sheet of the rim and the steel sheet of the wheel disc, which overlap one another. The assemblies include connecting pins each of which has a tip that passes through a hole in the aluminium sheet of the rim, the front end of which is welded to the steel sheet of the wheel disc, and a rear head that presses against the aluminium sheet of the rim about said hole.

The present disclosure provides a process for manufacturing a light-alloy hybrid wheel comprising the following separate operation phases: obtaining a front flange with an internal profile including a tire bead seat; obtaining a rim with an annular profile including a tire bead seat at a first end and a circular flank for assembly with a part of the flange at a second end; and assembling the flange and the rim to form a wheel. The annular profiles of the flange and the rim form exterior and interior sides of the wheel. Assembling the flange and the rim comprises welding the flank of the rim and the flange together by a single friction stir weld using a pin such that the weld is exposed at the exterior and interior sides of the wheel.

The present disclosure provides a process for manufacturing a light-alloy hybrid wheel comprising the following separate operation phases: obtaining a front flange with an internal profile including a tire bead seat; obtaining a rim with an annular profile including a tire bead seat at a first end and a circular flank for assembly with a part of the flange at a second end; and assembling the flange and the rim to form a wheel. The annular profiles of the flange and the rim form exterior and interior sides of the wheel. Assembling the flange and the rim comprises welding the flank of the rim and the flange together by a single friction stir weld using a pin such that the weld is exposed at the exterior and interior sides of the wheel.

A machine for repairing motorcycle rims includes a frame, straightening devices having actuators for straightening deformations of the rim displaceable by the frame, a vertical support shaft adjustable with respect to the frame structure, configured to support the rim. The machine also includes a head base coupleable to an intermediate bedplate of the frame, a head rotatably coupleable to the head base, configured to rotate freely or actuated by transmission means, locking units adjacent to the head, configured to lock the rotation of the head, a fastening device coupleable to the head, configured to, in combination with the vertical support shaft, fasten the rim crossing through and/or resting on a hub of the rim; and a machining device mounted in a movable manner in the frame, configured to machine the rim.

A machine for repairing motorcycle rims includes a frame, straightening devices having actuators for straightening deformations of the rim displaceable by the frame, a vertical support shaft adjustable with respect to the frame structure, configured to support the rim. The machine also includes a head base coupleable to an intermediate bedplate of the frame, a head rotatably coupleable to the head base, configured to rotate freely or actuated by transmission means, locking units adjacent to the head, configured to lock the rotation of the head, a fastening device coupleable to the head, configured to, in combination with the vertical support shaft, fasten the rim crossing through and/or resting on a hub of the rim; and a machining device mounted in a movable manner in the frame, configured to machine the rim.

A wheel automatic closed die forging production line includes a sawing machine, a first transfer track, a bar heating furnace, a first manipulator, an oscillating rolling machine, a second manipulator, a primary forging hydraulic machine, an intermediate heating furnace, a third manipulator, a finish forging hydraulic machine, a wheel transfer block, a fourth manipulator, a cutting, expanding and punching hydraulic machine, a second transfer track, a spinning machine, a fifth manipulator, a third transfer track, a heat treatment furnace, a fourth transfer track, a machining unit, a sixth manipulator and a fifth finished product track, and can improve mechanical and the physical properties of the wheel product, the wheel forging effect and the yield. Aluminum and magnesium alloy wheel compression molding is realized, reducing cost, time and labor for secondary machining and reshaping, and improving production safety and efficiency.

Aluminum wheels include a rim and a disc having a mounting portion. The mounting portion includes an inner mounting face and an outer mounting face. The mounting portion also includes a coarse grain region and a fine grain region. The coarse grain region can be adjacent, and at least partially form, one of the inner mounting face or the outer mounting face. The coarse grain region includes aluminum alloy grains of a first average grain length that is greater than 1 mm. The fine grain region extends between the coarse grain region and the other of the inner mounting face or the outer mounting face. The fine grain region includes aluminum alloy grains of a second average grain length that is less than 0.5 mm.

The present invention explains a process for manufacturing tubeless vehicle wheel without welding using a hoop 100 having an outboard end 101, a centre region 102, an inboard end 103. The process includes spinning the outboard end 101 to obtain a disc region 202, spinning disc end 203 to obtain preform nave region 301. Forming the disc region 202 to obtain a disc profile 401 and a nave region 403, forming the centre region 102, inboard end 103 to obtain a straight rim profile 402. Spinning and forming outer end 405 of the straight rim profile 402 to obtain an outboard flange 502a and spinning the straight rim profile 402 to obtain a concave rim profile 601a with a preform inboard flange 602a. Spinning the concave rim profile 601a to obtain bead seats 701a, well region 703a and, forming the preform inboard flange 602a to obtain an inboard flange 704a.