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Process for manufacturing a light alloy wheel rim and wheel rim resulting therefrom

A light alloy and rim technology, applied in the manufacture of tools, wheels, rims, etc., can solve problems such as limited efficiency

Inactive Publication Date: 2007-07-11
HAYES LEMMERZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] These methods however have limited efficiency and also suffer from the disadvantage that the rim surface needs to be cleaned very thoroughly prior to the thermal deposition operation in order to ensure uniform and correct adhesion of the thermal deposition material to it

Method used

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  • Process for manufacturing a light alloy wheel rim and wheel rim resulting therefrom
  • Process for manufacturing a light alloy wheel rim and wheel rim resulting therefrom
  • Process for manufacturing a light alloy wheel rim and wheel rim resulting therefrom

Examples

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Embodiment Construction

[0022] In the drawings, the same or similar elements are denoted by the same reference numerals.

[0023] The term rim axis of rotation refers to the axis about which the rim will rotate in use.

[0024] The term radial direction refers to a direction substantially perpendicular to the axis of rotation of the rim.

[0025] The term axial direction refers to a direction substantially parallel to the axis of rotation of the rim.

[0026] With particular reference to Figure 1 , a light alloy rim 1 (for example of aluminium) is illustrated of the type that can be used, for example, in automobile wheels.

[0027] The rim comprises a disc 2 and an annular part or ring 3 . The latter comprises a first rim 4i or inner rim and a second rim 4e or outer rim, each extending substantially in a radial direction along the respective circumference of the ring 3 . The rims 4i and 4e are arranged at two axially opposite sides of the ring 3 and are respectively arranged in inner and outer pos...

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Abstract

Process (20) for manufacturing a wheel rim (1) in light alloy including the following operations: providing (21) a rough wheel rim in light ally, comprising a wheel disc (2) and an annular portion (3), the annular portion (3) including a first (4I) and a second (4e) bead defining a drop well ( C) having a first profile; processing (23) the rough wheel rim, modifying the first profile in order to obtain a second profile being of a lower thickness than the first profile, at least at an intermediate portion (C1) of the drop well ( C), characterised by including a finishing operation (25) of a surface of the second profile intermediate portion by means of a compression action of said surface, the finishing operation leaving the low thickness substantially unchanged.

Description

technical field [0001] The invention relates to the technical field of wheels and in particular to a method for producing a light alloy wheel rim and a wheel rim produced by said method. Background technique [0002] It is known that the weight of a rim can significantly affect the performance and fuel consumption of the vehicle on which it is mounted. [0003] In order to solve or reduce the disadvantages arising from this problem, various types of rims of light alloys, for example made of aluminium, can be used. Light alloy rims or alloy rims have a lower weight than other types of rims. [0004] Typically an alloy rim includes a portion having a substantially annular shape and also includes a disc coupled to the annular portion. This annular portion includes an area called a dropwell suitable for coupling a tire. [0005] For example, the disc and the annular portion are formed by casting as one piece, or alternatively, as two separate parts and subsequently joined, eg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B3/02B60B3/06B60B21/00B21D53/30B21D53/26
CPCB60B3/06B60B3/02B21D53/26Y10T29/49496Y10T29/47Y10T29/49499Y10T82/10Y10T29/49524Y10T29/49988Y10T29/49989Y10T29/49995
Inventor 翁贝托·阿费尔特拉
Owner HAYES LEMMERZ
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