6005A aluminum alloy for automobiles and crash box processing method

A processing method and technology of aluminum alloy, which are applied in the processing field of 6005A aluminum alloy for automobiles and energy-absorbing boxes, can solve the problems of crushing and cracking, and achieve the effect of uniform deformation and no cracking.

Pending Publication Date: 2020-04-21
山东友升铝业有限公司
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Problems solved by technology

The current energy-absorbing box products produced by the 6005A alloy meet the conditions of Rm≥280MPa, RP0.2≥260MPa, and A≥10%, and the crushing cracks; after adjusting the aging process, the crushing cracking still exists

Method used

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  • 6005A aluminum alloy for automobiles and crash box processing method
  • 6005A aluminum alloy for automobiles and crash box processing method
  • 6005A aluminum alloy for automobiles and crash box processing method

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Embodiment Construction

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] 1. During the smelting process of 6005A aluminum rods, magnesium is added with magnesium ingots with a magnesium content of 99.9%, and silicon is added with aluminum-silicon alloys with a silicon content of 21%; the temperature of the aluminum liquid is 745℃ when adding; 1 Debug the components of each embodiment)

[0034] Table 1

[0035]

[0036] 2. The aluminum liquid adopts two-stage filtration, and the number of filter plates is ...

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Abstract

The invention discloses a 6005A aluminum alloy for automobiles and a crash box processing method. The 6005A aluminum alloy for automobiles comprises the following components in percentage by weight: 0.75-0.80% of Si, 0.15-0.20% of Fe, less than or equal to 0.10% of Cu, 0.28-0.30% of Mn, 0.63-0.68% of Mg, 0.06-0.10% of Cr, less than or equal to 0.10% of Zn, less than or equal to 0.10% of Ti and thebalance of Al. The crash box processing method adopts the aluminum alloy. the aluminum alloy is capable of weakening the segregation, at crystal boundaries, of surplus Si, so that embrittlement is not easy to cause and alloy materials are not easy to craze during compression degeneration. The 6005A aluminum alloy crash box prepared by the process satisfies the conditions that the tensile strengthRm is greater than or equal to 280 MPa, the yield strength RP0.2 is greater than or equal to 260 MPa and the elongation percentage A is greater than or equal to 10%; and the crash box is symmetric, uniform in deformation and free of craze at folds during compression degeneration.

Description

Technical field [0001] The invention relates to a method for processing 6005A aluminum alloy and an energy-absorbing box for automobiles. Background technique [0002] The energy absorbing box is a safety component of the car body that absorbs the energy transmitted by the anti-collision beam through deformation when a collision accident occurs, and reduces the impact force. Therefore, the energy absorbing box needs to meet the crushing characteristics, energy absorbing characteristics and collision stability. The current energy-absorbing box products produced by 6005A alloy will collapse and crack when Rm≥280MPa, RP0.2≥260MPa, and A≥10%; after adjusting the aging process, crushing cracking still exists. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a 6005A aluminum alloy for automobiles suitable for automobile energy absorbing boxes, and also provide a 6005A aluminum alloy energy absorbing box for automobiles that sat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03B22D11/04C22F1/043
CPCB22D11/003B22D11/04C22C1/026C22C1/03C22C21/02C22F1/002C22F1/043
Inventor 罗世兵卓振
Owner 山东友升铝业有限公司
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