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Liquid forging process method for 6061-material commercial vehicle aluminium alloy hub

An aluminum alloy wheel hub and liquid die forging technology, which is applied in the field of liquid die forging, can solve the problems of no application of rare earth elements, achieve obvious economic and social benefits, improve the metallographic structure, and improve the appearance quality

Active Publication Date: 2017-05-10
辽宁忠相铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the prior art, rare earth elements have not been applied to the field of liquid die forging of aluminum alloys.

Method used

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  • Liquid forging process method for 6061-material commercial vehicle aluminium alloy hub
  • Liquid forging process method for 6061-material commercial vehicle aluminium alloy hub

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Alloy composition optimization: optimize the Mg / Si ratio and the ratio of other alloying elements in 6061 aluminum alloy, and control the mass content of impurity elements, including Si0.6 parts; Fe<0.25 parts; Cu0.2 parts; Mg1.0 parts ; Cr0.15 parts; Al97 parts, control other single impurities in 6061 aluminum alloy to less than 0.05 parts, then add elements Gd0.4 parts; Sm0.18 parts; Hf 0.5 parts, use Sr and Ti for modification and refinement treatment. In this step, it is necessary to strictly control the amount of Gd and Sm added, because adding too much will not only not improve the performance of the aluminum alloy, but also affect the normal use of the aluminum alloy, and even cause the scrap of the material;

[0042] (2) Melting;

[0043] (3) The melt obtained in step (2) is degassed and slag-removed in the furnace with a high-efficiency refining agent to make the melt clean and free of impurities; removing impurities and gases inside the aluminum alloy melt...

Embodiment 2

[0055] (1) Alloy composition optimization: optimize the ratio of Mg / Si and other alloy elements in 6061 aluminum alloy, and control the mass content of impurity elements, including Si0.5 parts; Fe<0.1 parts; Cu0.15 parts; Mg0.80 parts ; Cr0.04 parts; Al95 parts, control other single impurities in 6061 aluminum alloy to less than 0.04 parts, then add elements Gd0.3 parts; Sm0.15 parts; Hf 0.3 parts, use Sr and Ti for modification and refinement treatment. In this step, it is necessary to strictly control the amount of Gd and Sm added, because adding too much will not only not improve the performance of the aluminum alloy, but also affect the normal use of the aluminum alloy, and even cause the scrap of the material;

[0056] (2) Melting;

[0057] (3) The melt obtained in step (2) is degassed and slag-removed in the furnace with a high-efficiency refining agent to make the melt clean and free of impurities; removing impurities and gases inside the aluminum alloy melt can further...

Embodiment 3

[0070] (1) Alloy composition optimization: optimize the Mg / Si ratio and other alloy element ratios in 6061 aluminum alloy, and control the mass content of impurity elements, including Si0.75 parts; Fe<0.1 parts; Cu0.25 parts; Mg1.10 parts ; Cr0.25 parts; Al98 parts, control other single impurities in 6061 aluminum alloy to less than 0.05 parts, then add elements Gd0.5 parts; Sm0.2 parts; Hf1 parts, use Sr and Ti for modification and refinement treatment. In this step, it is necessary to strictly control the amount of Gd and Sm added, because adding too much will not only not improve the performance of the aluminum alloy, but also affect the normal use of the aluminum alloy, and even cause the scrap of the material;

[0071] (2) Melting;

[0072] (3) The melt obtained in step (2) is degassed and slag-removed in the furnace with a high-efficiency refining agent to make the melt clean and free of impurities; removing impurities and gases inside the aluminum alloy melt can further...

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Abstract

The invention discloses a liquid forging process method for a 6061-material commercial vehicle aluminium alloy hub. The liquid forging process method mainly comprises the following steps: alloy component optimizing, smelting, melt purifying, liquid forging moulding, de-moulding, trimming and forming holes, performing heat-treatment strengthening, machining and performing surface treatment. According to the liquid forging process method for the 6061-material commercial vehicle aluminium alloy hub, a vehicle hub is prepared by optimizing the components of various elements in a 6061-alloy first, then matching and adding suitable amounts of rare elements Gd and Sm and element Hf, and combining a liquid forging process; by optimizing the chemical components of the alloy and a melt purifying technology, the metallographical structure of the alloy is improved, and internal defects, such as hole shrinkage, hole loosening, air holes, cracks and the like in a product are greatly eliminated. The hub product appearance quality is obviously improved; the internal defects are obviously reduced; the liquid forging process method is high in production efficiency, short in process flow, low in process cost, energy-saving, low in environmental pollution and obvious in economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the field of liquid die forging, and in particular relates to a liquid die forging process method of a 6061 material commercial vehicle aluminum alloy wheel hub. Background technique [0002] The wheel hub is one of the most important safety parts on the car. The wheel hub bears the pressure of the car and the load, is affected by the dynamic torque of the vehicle when starting and braking, and also withstands the turning of the car during driving, uneven roads, and road surfaces. Irregular alternating force generated by dynamic loads from different directions such as obstacle impact. The quality and reliability of the wheel not only affect the safety of the vehicle and the personnel and materials on the vehicle, but also affect the stability, maneuverability, comfort and other performance of the vehicle during driving. This requires the wheel hub to have good dynamic balance, high fatigue strength, With good rigidity and elas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06B22D18/02C22F1/047
CPCB22D18/02C22C1/06C22C21/08C22F1/002C22F1/047
Inventor 刘忠锁
Owner 辽宁忠相铝业有限公司
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