Chassis component having high durability
A technology of chassis and components, applied in the manufacture of tools, vehicle parts, transportation and packaging, etc., can solve the problems of low toughness, incompetent component performance, and inconsistent joinability, etc., and achieve the effect of high toughness and high tensile strength
Inactive Publication Date: 2019-04-02
THYSSENKRUPP STEEL EURO AG +1
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Problems solved by technology
[0007] Furthermore, it is problematic that, in addition to high material strength, it has only low toughness, and as a result extreme behavior can occur when the wheel is overloaded (e.g. wrong load situation, collision with curbs)
Additionally, the material can be susceptible to hydrogen-induced embrittlement due to its high strength
As a result, high material strength does not translate directly into higher component performance and lightweight construction encounters technical limitations here
[0008] Therefore, it was considered until now that in chassis components, further increased component properties cannot be achieved or cannot be achieved directly and economically by means of steel sheet construction, since the increased strength no longer achieves the required degree of formability or other properties, such as sufficient The joinability (welding performance) of the
Method used
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Embodiment Construction
[0048] figure 1 Firstly, a cross-sectional view of an exemplary embodiment in the form of a wheel 1 of a chassis assembly according to the invention is schematically shown. The wheel 1 consists of a separately produced annular rim strip 2 and a disc-shaped wheel disc 3 in a manner known per se. The wheel disk 3 is located in the opening of the rim strip 2 and rests with its peripheral surface on the inner side of the rim strip 2 . The non-detachable connection between the rim strip 2 and the wheel disk 3 is produced in the form of one or more weld seams or spot welds.
[0049] The wheel disk 3 and / or the rim strip 2 are produced here at least partially from multi-layer steel sheets. figure 2 a-c show cross-sectional views of three exemplary embodiments of multilayer steel sheets, which can be used for producing the wheel disc 3 and / or the rim strip 2 .
[0050] exist figure 2 The multilayer steel sheet 10 shown in section in a has three steel layers comprising two outer ...
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Abstract
The invention relates to a chassis component for a motor vehicle, wherein the chassis component (1) is produced at least partly from a multi-layer steel sheet (10, 20, 30), wherein the multi-layer steel sheet (10, 20, 30) has at least three steel layers, comprising two outer steel layers (11, 12; 21, 22; 31, 32) and one inner steel layer (13, 23, 33), and wherein at least one outer steel layer (11, 12; 21, 22; 31, 32) of the multi-layer steel sheet (10, 20, 30) has a tensile strength of at least 1200 MPa. The invention further relates to a method for producing a chassis component for a motor vehicle, in particular a wheel (1) or a part thereof.
Description
technical field [0001] The invention relates to a chassis component for a vehicle, wherein the chassis component is at least partially made of multilayer steel sheet, wherein the multilayer steel sheet has at least three steel layers, including two outer steel layers and one inner steel layer. The invention also relates to a method for producing a chassis component for a vehicle, in particular a chassis component according to the invention, in particular a wheel or a part thereof. Background technique [0002] Vehicle wheels (often also called rims) as an example of a chassis component can be cast from light metal, for example. As an alternative thereto, it is also known to produce truck wheels or rims from steel in sheet metal construction. Here, steel wheels or steel rims are distinguished by favorable production prices and good operating properties. It should be noted here that the wheels are safety components and are subjected to the highest mechanical stresses during ...
Claims
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IPC IPC(8): B60B3/04B60B3/12
CPCB32B15/011B60B3/04B60B3/12B60B2310/542B60B2360/102B60B2360/141B60B2900/111C21D9/34C22C38/002C22C38/04Y02T10/86B21D22/20B21D22/208B32B15/00B32B15/01B32B15/04B32B15/043B32B15/18B60B3/00B60B21/00B60B2310/54C21D7/00C21D7/02C21D7/13C21D8/00C21D8/005C21D8/0205C21D8/0221C21D8/0226C21D8/0231C21D8/0236C21D8/0242C21D8/04C21D8/0405C21D8/0421C21D8/0442C21D8/0447C21D8/0452C22C38/18C22C38/32C22C38/38C22C38/54Y10T428/12229Y10T428/12951Y10T428/12958Y10T428/12965Y10T428/12972Y10T428/12979Y10T428/24942Y10T428/2495
Inventor 大卫·皮耶罗纳克
Owner THYSSENKRUPP STEEL EURO AG