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Aluminium die-cast part

A technology for casting aluminum parts and castings, which is applied in the direction of the connection between vehicle components, superstructure, and superstructure sub-assemblies, and can solve the problems of inequality and the adverse effects of die-casting aluminum parts without breakage and deformability. The effect of manufacturing cost suppression

Inactive Publication Date: 2016-02-03
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under operating conditions and especially under the influence of high temperature differences during the curing of adhesive material systems, unequal length changes occur between the casting and the pulling belt due to the different coefficients of thermal expansion depending on the material. Changes in length adversely affect the non-break deformability of die-cast aluminum parts, which are critical for crash safety

Method used

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  • Aluminium die-cast part
  • Aluminium die-cast part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] exist figure 1 The die-cast aluminum part 1 shown in the form of a square bracket consists of an AlSi alloy and is provided with one or more highly tensile tensile elements on its outer side 3 opposite the side 2 which is loaded in the event of a crash 4. The tension element consists of a ductile type HC600 multiphase steel plate with a coefficient of thermal expansion different from that of the casting 1, which is completely bonded to the casting 1 via a tough elastic bond 5 - for example consisting of a structural adhesive. The surfaces are connected in a load-resistant manner.

[0012] Whereas conventional aluminum die-cast brackets have high material brittleness and can therefore break under a point-acting impact load B after a limited bending deformation, the aluminum casting 1 interacts with the glued tension element 4 and its crash behavior It has been improved to such an extent that it can be bent without cracks and without breakage up to very high degrees of d...

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PUM

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Abstract

The invention relates to an aluminium die-cast part, in particular in the form of a load-bearing motor vehicle part, wherein, in order to protect against sudden breaking loads, at least one tractive element (4) - made of a material that can be deformed in a ductile manner and having a different thermal expansion coefficient to the die-cast part (1) - is bonded, in a load-resistant manner to the side (3) of the die-cast part that is external to the load. According to the invention, the die-cast part remains highly deformable, even under the effects of greater temperature fluctuations, by means of the punctiform, shear-resistant interconnection of the die-cast part and the tractive element at multiple sites (6) distributed over the bond (5).

Description

technical field [0001] The invention relates to a die-cast aluminum part according to the preamble of claim 1, and in particular to a load-bearing component for a motor vehicle, wherein at least one of And the tension element, which has a coefficient of thermal expansion different from that of the cast part, is bonded lastfest to the side of the cast part lying outside the load. Background technique [0002] Known from DE 10 2001 076 426 A1 is a die-cast aluminum part of this type, in the form of a spring support for motor vehicles, wherein the risk of casting fracture in a crash is significantly reduced by placing one or more strips (by a Highly tensile and at the same time extensible and deformable material) the pulling strap is stretched through the entire length of the pulling strap, the tough elastic The adhesive bond is fastened load-transmitting and in particular shear-transmitting on the side of the cast part lying outside the load. In this way, the impact loads a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D29/00B62D27/02
CPCB62D29/008B62D27/026
Inventor M·阿纳森泽尔F-J·克林肯贝格J-M·塞戈
Owner BAYERISCHE MOTOREN WERKE AG