Aluminium alloy material with good forging and pressing property

An aluminum alloy material and forging technology, which is applied in the field of aluminum alloy materials, can solve the problems of reducing the corrosion resistance of aluminum alloys, achieve the effects of improving the strength of the skeleton, reducing the coefficient of thermal deformation, and suppressing the generation of cracks

Inactive Publication Date: 2014-02-12
黄宣斐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the aluminum alloy with zinc added, although it can reduce the brittleness and reduce the cracks during hot forging, the corrosion resistance of the aluminum alloy will be reduced when zinc is added.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An aluminum alloy material with good forging performance, containing 4.8% copper, 0.3% tin, 0.35% bismuth, 0.6% zinc, 0.03% iron, 0.01% chromium and 0.22% magnesium by mass percentage , the balance is aluminum and unavoidable impurities.

Embodiment 2

[0018] An aluminum alloy material with good forging performance, containing 5.0% copper, 0.35% tin, 0.50% bismuth, 0.65% zinc, 0.045% iron, 0.015% chromium and 0.24% magnesium by mass percentage , the balance is aluminum and unavoidable impurities.

Embodiment 3

[0020] An aluminum alloy material with good forging properties, containing 4.9% copper, 0.33% tin, 0.45% bismuth, 0.62% zinc, 0.04% iron, 0.012% chromium and 0.22% magnesium by mass percentage , the balance is aluminum and unavoidable impurities.

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PUM

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Abstract

The invention relates to an aluminium alloy material with good forging and pressing property. The aluminium alloy material comprises the following components in percentage by mass: 4.8-5.0% of copper, 0.3-0.35% of tin, 0.35-0.50% of bismuth, 0.6-0.65% of zinc, 0.03-0.045% of iron, 0.01-0.015% of chromium, 0.01-0.25% of magnesium and the balance of inevitable impurities. The magnesium is added to the aluminium alloy material, so that on the one hand, the skeleton strength of the copper in the aluminium alloy can be improved, and on the other hand, cracks are prevented from occurring by increasing the size of the magnesium, tin, bismuth and zinc compound and reducing the coefficient of thermal deformation.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to an aluminum alloy material with good forging performance. Background technique [0002] In order to make the aluminum alloy have good forging performance, it is generally to add lead to the aluminum alloy to improve its forging performance. However, due to the harmfulness of lead to the environment and the human body, it is necessary to find an aluminum alloy material that can replace lead. [0003] The prior art proposes to add tin and bismuth to the aluminum alloy material to produce an aluminum alloy with good forging performance, but compared with lead aluminum alloy, its brittleness increases, and the aluminum alloy will have cracks during hot forging. [0004] In order to overcome the above-mentioned defects, there are existing technologies that add zinc to the aluminum alloy with tin and bismuth to reduce the brittleness of the aluminum alloy and reduce the possibility of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/18
Inventor 黄宣斐
Owner 黄宣斐
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