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Method and device for producing a producing a wheel rim

A technology for rims and wheels, which is applied in the field of manufacturing wheels, can solve the problems affecting the dimensional stability and concentricity of the wheels, the hot forming is not targeted, and the technology is difficult to realize, so as to improve the dimensional stability, reduce the weight and improve the resistance. Effect

Active Publication Date: 2020-12-01
THYSSENKRUPP STEEL EURO AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, local hardening of wheels according to the method proposed by US 2004 / 0041458 A1 is disadvantageous, since this process leads to enormous component deformations, which adversely affect the dimensional stability and concentricity of the wheels
[0007] According to the standard, the rim is designed rotationally symmetrical and / or annular and in particular has undercut geometrical regions around the axis of rotation of the wheel at the rim corners and / or rim shoulders (peaks, valve seats) , making fabrication by direct thermoforming technically difficult
In addition, due to the complex geometry of the rim, the thermoforming by means of known tool assemblies (punches, plate holders, dies) is therefore impractical.

Method used

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  • Method and device for producing a producing a wheel rim
  • Method and device for producing a producing a wheel rim
  • Method and device for producing a producing a wheel rim

Examples

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Embodiment Construction

[0041] The wheel (3) comprises a rim (1) for accommodating a tire not shown and a spoke (2) which is connected to the rim (1) in a material fit, force fit and / or form fit manner, and which has a open ground assembly to Figure 7 Connection area on the wheel carrier not shown. The wheel (3) can be designed for a private car, wherein a material thickness of up to 3 mm is preferably provided for the rim (1) and a material thickness of up to 6 mm is preferably provided for the spokes (2), or it can be designed especially for a commercial vehicle, wherein, A material thickness of greater than 3 mm is preferably provided for the rim ( 1 ), and a material thickness of greater than 6 mm is preferably provided for the spokes ( 2 ).

[0042]In order to manufacture a rim (1) for a wheel (3), a semi-finished product made of steel sheet is provided, which is manufactured as a rotationally symmetrical and / or tubular and / or near-final contour preform (not shown) of the rim ). The rotation...

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Abstract

The invention relates to a method and to a device (10) for producing a wheel rim (1) for a vehicle wheel (3) and to a method for producing a vehicle wheel (3)

Description

technical field [0001] The invention relates to a method and a device for producing a rim for a wheel and a method for producing a wheel. Background technique [0002] Vehicle wheels or motor vehicle wheels are safety components and must therefore be able to permanently withstand high mechanical and dynamic alternating stresses during driving operation. Conventional "steel wheels" of plate construction usually consist of spokes (discs) connected to the hub and a rim (rim strip) that houses the tire. Wheel assemblies are currently produced in several steps (up to 11 stages) by cold forming (deep drawing, spinning, contouring) on ​​multistage presses. Heretofore only microalloyed steels (structural steels, fine-grained steels) and dual-phase steels having a strength of 400 to 600 MPa have been used. A combination of MAG welding and press connection (deep groove rim) is preferably provided as joining technique. [0003] The weight of the wheel as a rotationally moving mass i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D53/30C21D9/34
CPCB21D53/30B21D22/022C21D9/34C21D1/673Y02T10/86B60B21/00B60B2310/208B60B2310/30B60B2360/102
Inventor 大卫·皮耶罗纳克约尔格·戈施吕特
Owner THYSSENKRUPP STEEL EURO AG