Method and apparatus for manufacturing thermoformed wheel spokes

A technology of thermoforming and spokes, which is applied in wheel manufacturing, metal processing equipment, wheel hubs, etc., to reduce the risk of cracks and reduce costs

Active Publication Date: 2018-09-25
THYSSENKRUPP STEEL EURO AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These costs are associated, for example, with the subsequent laser cutting of the holes or are caused by the enormous wear required for the subsequent mechanical cutting

Method used

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  • Method and apparatus for manufacturing thermoformed wheel spokes
  • Method and apparatus for manufacturing thermoformed wheel spokes
  • Method and apparatus for manufacturing thermoformed wheel spokes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 A typical wheel is firstly shown schematically in , which consists of a spoke 1 and a rim 2 . The spokes 1 are connected to the rim 2 in a material fit and transmit the forces of the hub to the rim 2 .

[0027] figure 2 The front view shows the spoke 1 . It can be seen that the spoke 1 has three different holes. Firstly, a hub hole 3 is arranged centrally, which is surrounded by a total of five concentrically arranged wheel bolt holes 4 . Ventilation holes 5 are additionally provided in the outer regions of the spokes, which are required for the ventilation of the brakes. The hub bore 3 , the wheel bolt bore 4 and the vent hole 5 must be inserted into the spoke with extreme precision, because otherwise the spoke 1 would cause problems during installation into the wheel, such as imbalance, if the dimensional tolerances were exceeded.

[0028] image 3 , 4 and 5 now show the method for manufacturing wheel spokes at three different points in time, wherein,...

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PUM

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Abstract

A method for producing a wheel disk of a vehicle wheel may involve producing the wheel disk produced from a steel blank by hot forming. The blank may be at least partially hardened, preferably press-hardened, during or after the hot forming. The blank may be hot formed using at least one punch and at least one die, and at least one opening may be introduced into the blank using hot trimming means. At least one opening may be introduced during the hot trimming using at least one trimming bolt and an application bolt, wherein the application bolt may have at least one region having a cross-sectional shape that is variable in a longitudinal direction of the application bolt. Using the application bolt, the at least one opening may be calibrated via the variable cross sectional shape.

Description

technical field [0001] The invention relates to a method for producing wheel spokes for vehicle wheels, wherein the wheel spokes are produced by hot forming flat blanks made of steel, the flat blanks being at least partially hardened, preferably press hardened, during or after hot forming, wherein the flat The blank is hot formed using at least one punch and at least one die and at least one hole is introduced into the flat blank using a thermal cutting device. Furthermore, the invention relates to a plant for producing wheel spokes from slabs made of steel, wherein the plant is suitable for carrying out hot forming of the slabs into spokes, has at least one punch and at least one die for hot forming and Means are provided for carrying out a thermal cut for introducing at least one hole into the slab. Background technique [0002] The wheels of a motor vehicle are safety components and must therefore be able to permanently withstand high mechanical switching requirements du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/30B21D53/26
CPCB21D53/26B60B3/02B60B2310/206B60B2310/208B60B2310/211B60B2310/212B60B2310/213B60B2310/228B60B2310/234B60B2310/54B60B2360/102B60B2900/111B60B2900/112B60B2900/311B60B2900/331Y02T10/86B60B3/00B60B27/065B60B2310/226
Inventor 阿恩特·马克思克里斯蒂安·米勒大卫·皮耶罗纳克阿克塞尔·格吕内克勒马库斯·策纳克
Owner THYSSENKRUPP STEEL EURO AG
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