Abstract:
A method comprising: a step of preforming a plurality of bulging portions on a substantially circular plate blank, the bulging portions being located concentrically and circumferentially outward of a bolt hole, each of the bulging portions being a base of a reinforcing portion of a spoke; a step of forming a plurality of prototypical decorative holes on the respective bulging portions to form a prototypically-shaped spoke between the adjacent prototypical decorative holes; a step of forming a disk flange by bending an outer circumferential portion of the plate blank, on which the prototypical decorative holes are formed, at a right angle to be substantially parallel to a wheel axial direction, so that an outer periphery of a resultant decorative hole forms an upper end edge of the disk flange; and a step of forming the spoke by providing the prototypically-shaped spoke with the reinforcing portion.
Abstract:
The present invention provides wheel manufacturing method comprising a pressing step in which a primary molded product having a cylindrical shape with a bottom in which a flange part that extends to the outside is disposed on the open side end part is manufactured, a working step in which a secondary molded product is obtained by cutting away the bottom part of the abovementioned primary molded product, and a spinning step in which, the secondary worked product is fit over and fastened to a rotating jig, a rim flange molding roller is pressed against the end part of the flange part while the secondary worked product is rotated together with the rotating jig, so that the flange part is gradually molded into the shape of a rim flange part, and the flange part is subsequently subjected to an angular adjustment to an appropriate angle to mold a rim flange part.
Abstract:
This invention relates to a fabricated vehicle wheel and method for producing the same. The wheel includes a rim and a disc secured to the rim. The disc includes a plurality of outwardly extending spokes, an outer rim connecting flange defining a side edge surface and a window formed therein between adjacent pairs of spokes and having a predetermined shape defined by the adjacent pairs of spokes and the side edge surface of the rim connecting flange such that each of the windows extends to an outermost periphery of the wheel disc, at least one of the windows includes at least a first window portion and a second window portion, the first window portion being formed by a first piercing operation and the second window portion being formed by a second piercing operation.
Abstract:
The invention relates to a method of manufacturing a wheel, particularly for use on automotive vehicles. The wheel has a wheel rim and a wheel disc connectable to each other. The method includes shaping the wheel disc, shaping the wheel rim, manufacturing the wheel disc to form a first centering element and manufacturing the wheel rim to form a second centering element. The centering elements allow the wheel disc and the wheel rim to be connectable to each other via the first and second centering elements in a centered or concentric way.
Abstract:
This invention relates to an improved method for forming a full face fabricated vehicle wheel and includes the steps of: (a) providing a disc blank formed from a metal material; (b) subjecting the disc blank to a metal stamping operation to produce a partially formed non-bowl shaped full face wheel disc having at least one stamped pocket formed therein; (c) forming at least one decorative window in the partially formed full face wheel disc; (d) coining a back side of the window in the partially formed full face wheel disc; (e) trimming an outer edge of the partially formed full face wheel disc to a predetermined diameter; (f) forming a center hub hole in the partially formed full face wheel disc; (g) subjecting the partially formed full face wheel disc to one or more final metal forming operations to form at least one of an outer flange and a plurality of lug bolt mounting holes in the partially formed wheel disc so as to produce a finished full face wheel disc; and (h) securing the full face wheel disc to a preformed wheel rim to produce the finished full face fabricated vehicle wheel.
Abstract:
A full face wheel assembly comprises a full face disc and a rim. The disc is preferably cast from aluminum whereas the rim is rolled from aluminum strip stock. The full face disc comprises an outboard bead seat flange, an outboard bead seat and an outboard well side wall. The disc may also include lightener pockets or a continuous re-entrant channel adjacent the outboard bead seat. The rim comprises an inboard bead seat flange, an inboard bead seat, an inboard leg, and a deep well. The disc and rim are welded together in the deep well or bead seat regions by gas metal arc welding, electron beam welding or other suitable welding technique.
Abstract:
A wheel for a motor vehicle comprises two shell parts, with one shell part forming a wheel spider and the other shell part forming a rim. The shell parts are fitted into one another and connected together. Air openings in the rim are provided with a cast web that is punched out precisely so that the air openings in the wheel spider are located in correspondence with the air openings in the rim and can be connected to them.
Abstract:
A method for manufacturing a vehicle wheel includes the steps of providing a wheel rim and a spider and holding the spider inside the wheel rim. The wheel rim and the spider are positioned in a high capacity forming machine. At least one of a portion of the wheel rim located adjacent an outer periphery of the spider and a portion of the outer periphery of the spider is permanently deformed towards the other of the wheel rim and the spider thereby securing the wheel rim to the spider. An apparatus for securing the wheel rim to the spider includes a bottom die, a bottom inside rim stabilizer supported on the bottom die, a spider supported on the bottom inside rim stabilizer, a top inside rim stabilizer and a wheel rim supported by the bottom rim stabilizer and the top inside rim stabilizer. A high capacity forming machine encircles the wheel rim. The high capacity forming machine includes a workpiece which at least sometimes contacts the wheel rim and an electric circuit located adjacent the workpiece. A capacitor bank is electrically connected to the electric circuit of the high capacity forming machine. A switching circuit is electrically connected between the capacitor bank and the electric circuit for regulating a discharge of electricity from the capacitor bank into the circuit. The workpiece of the high capacity forming machine is capable of delivering a forming velocity of at least 10 m/second. A typical workpiece is either a resilient wall of an electrohydraulic device or a compression coil of an electromagnetic device.
Abstract:
b 55773576.001A disk having a non-uniform thickness with a thickness of an end portion thereof being smaller than a thickness of a hub coupling portion and a thickness of a hat portion being smaller than the thickness of the end portion. As a result, rigidity of the hat portion is decreased so that stress distribution in the disk is uniform and excess stress concentration is prevented from influencing a weld portion. Further, because of the decrease in thickness, weight of the disk also is decreased as compared to conventional disks.