Abstract:
Exemplary embodiments include a product and a method of galvanically isolating an outer wheel portion from a wheel hub. A center wheel portion may comprise a less galvanically active material than the outer wheel portion and may be attached to the outer wheel portion with an interlock.
Abstract:
A method for producing a fabricated vehicle wheel comprising the steps of: (a) providing a rim blank; (b) providing a first tooling fixture for subjecting the rim blank to a preforming operation wherein the cylindrical shape is reshaped to produce a rim preform; (c) providing a second tooling fixture defining a sealed internal chamber and having a tooling member having a predetermined inner surface contour, the sealed internal chamber in fluid communication with a source of high pressurize hydraulic fluid; (d) positioning the rim preform in the internal chamber with an outer surface thereof adjacent the inner surface contour of the tooling member; (e) supplying the high pressure hydraulic fluid to the internal chamber whereby the rim preform is pressed against the adjacent inner surface contour of the tooling member so as to produce a wheel rim having a contour which matches that of the inner surface contour of the tooling member; (f) removing the wheel rim from the second tooling fixture; and (g) securing the wheel rim to a wheel disc to produce the fabricated vehicle wheel.
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 rotor and a method of making same are provided. The rotor can include a substantially annular segment having a thickness defined between a first side surface and a second side surface, as well as an inner end edge surface and an outer end edge surface. At least one expansion groove can be formed in the substantially annular segment, and can include a substantially straight portion and a substantially curved portion. The substantially curved portion of the at least one expansion groove can form an arc of at least about 90 degrees. The rotor can also include at least one flange extending from an inner end edge surface of the substantially annular segment at an angle not parallel to a radial of the substantially annular segment.
Abstract:
A method for producing a wheel pan includes cold-rolling a rectangular metal strip of a given uniform thickness by conical rolls into a semicircular ring, such that the thickness reduction on the outer edge of the curved strip is at least 20%, and the circumference of the semicircular ring thus produced extends 130-310°, preferably 180°; bending the semicircular ring into a complete circle to produce a conical hoop, welding the ends together; and shaping the hoop to form the bottom of the pan.
Abstract:
An outer rim molded material is molded by forging or casting, a portion of the outer rim which extends from a hump to a bead seat is separated from part of a rim flange precursor 2a and is caused to fall in a sloping fashion inwards of a wheel width so as to form a bead seat precursor 12a, and the bead seat precursor 12a so formed is then joined to be welded to a top or side of a rim well rising portion precursor 5b. An external surface is cut to be finished to a proper shape, and an annular hollow portion 8 is formed underneath a lower surface of the bead seat portion.
Abstract:
A method of producing a light alloy wheel with a forging technique, aiming for producing the wheel having a large-diameter disk by use of a small-scale press device, comprising: heating an intermediate product that is formed by casting or forging and has a discoid and a cylindrical thick wall, which are to respectively become disk and rim at completion, to a plasticity temperature; then, rotating the intermediate product with stopping of the rotating at interval of a predetermined angle; pressing at least a portion of the to-be disk part by molds at time of said stopping, as to push out metal into recesses on the lower mold and to thereby form holes; repeating of such rotating, stopping and pressing as to give a pattern on whole of the to-be disk part; and further press processing and finish processing on the to-be disk and the to-be rim parts.
Abstract:
A non-slip frictional force-fit mounting of a plastic gear to a gear mounting shaft using a compliant tolerance ring between the shaft and gear, wherein the tolerance ring has a first circumferentially spaced pattern of varying radial dimensions and the gear has an annular interior mounting surface with a second circumferentially spaced pattern of varying radial dimensions cooperatively engaging within the first circumferentially spaced pattern of varying radial dimensions of the tolerance ring to provide a high torque rotational drive interconnection between the gear mounting shaft and the gear yet also have reduced gear material stress.
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:
An improved method for forming a vehicle wheel includes the steps of steps of: (a) providing a wheel rim defining a rim axis and including a generally axially extending well portion 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 wheel disc blank defining a disc axis, the disc blank including an inner annular wheel mounting portion and an outer annular portion; (c) subjecting the wheel disc blank to a series of metal forming operations to produce a finished disc having a final profile, the finished wheel disc having an outer annular portion, an inner annular wheel mounting portion, and an intermediate portion having a generally convex profile; and (d) joining the finished wheel disc to the wheel rim to produce a fabricated vehicle wheel.