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Liquid forging technology method for 6061 material commercial vehicle aluminum alloy shaft head

A technology of liquid die forging and aluminum alloy, which is applied in the field of liquid die forging process method of 6061 material commercial vehicle aluminum alloy shaft head, can solve the problem of no application of rare earth elements, etc., achieve obvious economic and social benefits, low process cost, good appearance The effect of quality improvement

Active Publication Date: 2017-01-11
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

[0008] 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 technology method for 6061 material commercial vehicle aluminum alloy shaft head
  • Liquid forging technology method for 6061 material commercial vehicle aluminum alloy shaft head
  • Liquid forging technology method for 6061 material commercial vehicle aluminum alloy shaft head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039](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;

[0040] (2) Melting;

[0041] (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

[0053] (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;

[0054] (2) Melting;

[0055] (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

[0068] (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;

[0069] (2) Melting;

[0070] (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 technology method for a 6061 material commercial vehicle aluminum alloy shaft head. The method mainly comprises the following steps of alloy component optimizing, smelting, melt purifying, liquid forging forming, demolding, trimming, hole tapping, heat treatment enhancing, machining and surface treatment. Firstly, components of elements in a 6061 alloy are optimized, a proper number of rare earth elements Gd and Sm and a proper number of elements Hf are added in a matched manner, and the vehicle shaft head is prepared through combination of the liquid forging technology; and through optimization of the chemical components of the alloy and the melt purifying technology, the metallographical structure of the alloy is improved, and shrinkage, loosening, air holes, cracks and other inner defects of products are greatly removed. The appearance quality of the shaft head product is obviously improved, the inner defects are obviously reduced, the production efficiency is high, the process is short, the technology cost is low, energy is saved, environment pollution is little, and economic benefits and social benefits are obvious.

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 axle head. Background technique [0002] The shaft head is one of the most important safety parts on the car. The shaft head bears the pressure of the car and the load, the dynamic torque of the vehicle when it starts and brakes, and also bears the turning and uneven road surface during the driving process of the car. , road obstacle impact and other irregular alternating forces from extraordinary dynamic loads. The quality and reliability of the axle head is not only related to the safety of the vehicle and the personnel and materials on the vehicle, but also affects the stability, maneuverability, comfort and other performances of the vehicle during driving, which requires good dynamic balance of the axle head and fatigue strength. High, good rigidity and elasticity, high dime...

Claims

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Application Information

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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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