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Processing technique of 6008 aluminum alloy crash box

A processing technology and energy-absorbing box technology, applied in the field of alloys, to achieve the effects of improving deformation capacity, good crushing effect, and improving performance

Inactive Publication Date: 2018-03-09
SHANGHAI UNISON ALUMINUM PRODS
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a processing technology for the 6008 aluminum alloy energy-absorbing box used in automobile bumpers, to solve the problem that the 6008 aluminum alloy meets the crushing deformation effect, product performance and section bearing capacity requirements

Method used

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  • Processing technique of 6008 aluminum alloy crash box
  • Processing technique of 6008 aluminum alloy crash box
  • Processing technique of 6008 aluminum alloy crash box

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Test equipment: aluminum smelting furnace and its casting system, 40T homogenizing furnace, aluminum rod sawing machine, aluminum extrusion machine -2000T, aging electric furnace, 20T universal testing machine.

[0027] experiment procedure:

[0028] 1) During the smelting process of 6008 aluminum rods, magnesium is added with 99.9% magnesium ingots, and silicon is added with 21% aluminum-silicon alloys; the temperature of the molten aluminum is 752°C when adding (requires the alloy content in the final aluminum rods: magnesium mass percentage Controlled at 0.55-0.60%, silicon mass percentage is controlled at 0.5-0.55%);

[0029] As in the original process of Comparative Example 1, in the final aluminum rod, the alloy content: silicon mass percentage: 0.6-0.7% magnesium mass percentage: 0.4-0.45%;

[0030] 2) The aluminum liquid adopts two-stage filtration, and the meshes of the filter plates are 40 mesh and 50 mesh respectively;

[0031] 3) Continuous casting is carr...

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Abstract

The invention relates to the field of alloys and particularly relates to a processing technique of a 6008 aluminum alloy crash box, comprising the steps of A, during smelting of 6008 aluminum rods, using 99.9% magnesium ingots to add magnesium and 21% aluminum-silicon alloy to add silicon, wherein molten aluminum is at 752 DEG C during adding; B, subjecting the molten aluminum to double-level filtering, wherein filter plates are 40 and 50 in mesh respectively; C, using a hydraulic casting machine and a casting tray as well as a water-curtain cooling system including crystallizer and cooled byfed water to perform continuous casting so as to obtain aluminum rods; D, subjecting the aluminum rods to homogenous annealing at 560 DEG C for 7 H; E, extruding the aluminum rods to obtain a finishedcrack box; f, aging at 215 DEG C for 5 H. The magnesium and silicon alloy content in the 6008 aluminum alloy is adjusted, and the aging process is modified; after modification, the finished crash meets the requirements for both crushing and sectional bearing capacity and yielding strength.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a composition of an Al-Mg-Si-V alloy and a heat treatment process for a 6008 brand aluminum alloy. Background technique [0002] The lightweight of automobiles is developing rapidly. Aluminum alloy has the characteristics of moderate strength, light weight, and easy forming, which is suitable for lightweight design of automobiles. [0003] The current energy-absorbing box products produced by 6008 alloy have a relatively high proportion of pressure collapse cracking when the yield strength is met; after adjusting the aging process, the problem of pressure collapse cracking is solved, but the yield strength cannot meet the requirements. Contents of the invention [0004] The purpose of the present invention is to provide a processing technology for a 6008 aluminum alloy crash box used in automobile bumpers, which solves the problem of 6008 grade aluminum alloy and simultaneously ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C21/08C22F1/043C22F1/047C22F1/05
CPCC22C21/02C22C21/08C22F1/043C22F1/047C22F1/05
Inventor 罗世兵李文通
Owner SHANGHAI UNISON ALUMINUM PRODS
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