Abstract:
Thus, the present disclosure includes a method of producing a weight-optimized pneumatic tire rim having rotationally-symmetrically partially different wall thickness. The steps include: providing a tube section having a first wall thickness and two end sides; leveling the first wall thickness starting from the two end sides over a defined rotationally-symmetrical area thereby forming two flanks by precontouring, each of the flanks having a second wall thickness, and pushing tolerance-caused excess material of the flanks into a well base zone between the two flanks; and contouring the flanks by pressure rolling while drawing each of the flanks toward an end area of each of the flanks and reducing the thickness of each of the flanks partially differently to predetermined measurements. The present disclosure also includes a device to implement the method.
Abstract:
A cast forging method of manufacturing a disc for a wheel. The method may include the steps of producing a cast disc by low pressure casting, heating the cast disc to its material plasticity temperature, and placing the heated cast disc into a forging mold to forge the disc under high pressure. The method may further include the steps of inspecting the forged disc for defects, and machining the forged disc to the required end-product specifications.
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 wheel spindle flange (and the like) has stud holes with soft surface hardness formed therein which permit non-rotational splines, studs and the like to be press-fitted therein with minimal press force at a centered press zone established between intentionally formed and dimensioned counterbores within the flange to minimize flange distortion and lateral run out of the spindle.
Abstract:
A lightened disk for a wheel has a flange having an axially inboard edge. The inboard edge includes a general portion which is located in a plane perpendicular to an axis of the disk. The flange portion has a thickness less than 90% of a thickness of a disk material at at least the general portion of the inboard edge. A method for manufacturing a lightened disk for a wheel includes a drawing step during which the flange portion is drawn such than the flange portion has a thickness less than 90% of a thickness of a disk material at at least the general portion of the inboard edge.
Abstract:
A wheel for a motorized land vehicle is composed of a wheel body and a roughly cylindrical wheel rim. The wheel body consists of a roughly cylindrical central part which serves to center and to mount the wheel on the axle hub of the vehicle. It also consists of an interior riser which is roughly conical and another inverted conical part that, together with the interior riser, defines a camber nose that has a large bend radius. The inverted conical part ends in a cut-off edge designed for the connection of the wheel body and the wheel rim. The wheel body is composed of at least two connected circular parts that vary in thickness and/or mechanical characteristics and are butt welded together.
Abstract:
An automotive passenger vehicle full face wheel having a sheet metal disc-rim including a central bolt circle mounting portion, an intermediate portion extending generally radially outwardly therefrom and an outer peripheral portion surrounding the intermediate portion having an outboard tire bead retaining flange. The rim part includes a rim edge portion extending circumferentially continuously adjacent the rim outboard lead seat and permanently joined by a continuous weld to the disc-rim outer peripheral portion. In a first embodiment the disc-rim intermediate portion has an outboard-concave bowl shape with a radius of curvature ranging about 10.50 to about 11.00 inches. The bolt circle mounting portion has pad surfaces defining a wheel mounting plane and a frusto conical transition portion outboard divergent therefrom joined integrally to the bowl portion by an annular bend portion spaced axially from the mounting plane about 0.75 to 1.50 inches. In a second embodiment the disc-rim intermediate bowl portion is integrally joined to the outer peripheral portion at a bend junction radially spaced inwardly from the rim edge flange portion about 14.30 to 13.71 inches. The disc-rim bowl portion has a radius of curvature of about 10.50 to 11.00 inches and the wheel offset dimension is about 1.0 to 1.25 inches.
Abstract:
The invention is directed to a method for manufacturing a brake shoe particularly for drum brakes of motor vehicles, having a carrier of the brake lining whose outside surface has the shape of a circular cylindrical section, and having an arcuate or sickle-shaped web arranged radially inwardly of the carrier of the brake lining and by which the actuation forces of the brake are transmitted onto the carrier of the brake lining. The new manufacturing method provides that a ring having a cylindrical outside surface and a T-shaped cross section is shaped from a blank by buckling and subsequent flattening or by cleaving and subsequent flattening. The ring is divided into two or more ring segments each of which forms a brake shoe.
Abstract:
An improved method for producing a full face fabricated vehicle wheel is disclosed, wherein a full face disc is formed by combining stamping and flow spinning operations. The method includes the steps of: (a) providing a generally circular rim defining an axis and including a generally axially extending well and a pair of opposed ends, one of the ends including an inboard tire bead seat retaining flange and an inboard tire bead seat, and the other end including an outboard tire bead seat; (b) providing a generally circular disc blank including an inner annular portion defining a wheel mounting surface; (c) stamping the disc blank to form an intermediate annular portion having a predetermined contour and an outer annular portion; (d) flow spinning the outer annular portion of the disc to form an outboard tire bead seat retaining flange of the full face wheel; (e) positioning the outboard tire bead seat retaining flange of the disc adjacent the outboard tire bead seat of the rim; and (f) securing the rim and disc together to produce the full face fabricated wheel.