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Precision forming aluminum alloy material suitable for high-toughness structural part of new energy automobile and preparation method of precision forming aluminum alloy material

A technology for new energy vehicles and aluminum alloy materials, applied in the field of aluminum alloys, can solve the problems of poor casting performance, difficult die-casting, low strength, etc., to improve mechanical properties and corrosion resistance, improve tensile strength, and refine grains. grain effect

Active Publication Date: 2022-03-08
苏州慧驰轻合金精密成型科技有限公司
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Problems solved by technology

[0003] At the same time, the current ADC12 aluminum alloy is far from meeting the requirement of elongation of more than 6% for automotive structural parts. The existing Al-Mg alloys have problems such as low strength, poor casting performance, and difficult die-casting.

Method used

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  • Precision forming aluminum alloy material suitable for high-toughness structural part of new energy automobile and preparation method of precision forming aluminum alloy material
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  • Precision forming aluminum alloy material suitable for high-toughness structural part of new energy automobile and preparation method of precision forming aluminum alloy material

Examples

Experimental program
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Effect test

Embodiment 1-9

[0034] Product performance testing:

[0035] 1) The yield strength test method refers to GB / T 228.1A-2010.

[0036] 2) The elongation test method refers to GB / T 228.1A-2010.

[0037] A precision-molded aluminum alloy material suitable for high-strength and tough structural parts of new energy vehicles, including the ingredients in the mass percentages listed in Table 1 below, and the balance is aluminum and unavoidable impurities.

[0038] Si: 2.0wt%-5.0wt%; Mg: 5.0wt%-7.0wt%; Zr: 0.2wt%-0.6wt%; Sm: 0.1wt%-0.5wt%; Gd: 0.5wt%-0.8wt%; Cu: 0.8wt%-1.2wt%; Zn: 0.6wt%-1.0wt%; Fe: <0.5wt%, silicon carbide whiskers: 3.0wt%-7.0wt%.

[0039] Table 1 is the content of each element in the aluminum alloys of Examples 1-9 and the properties of the aluminum alloys made therefrom

[0040]

[0041] By comparing the properties of the alloys of Example 1 and Example 5, it is obvious that the tensile strength and yield strength of the alloy of Example 5 are better than that of Example 1.

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Abstract

The invention belongs to the technical field of aluminum alloy, and particularly relates to a precise forming aluminum alloy material suitable for a high-toughness structural part of a new energy automobile and a preparation method of the precise forming aluminum alloy material. 5.0 wt% to 7.0 wt% of Mg; zr: 0.2 wt% to 0.6 wt%; 0.1 wt% to 0.5 wt% of Sm; gd: 0.5 wt% to 0.8 wt%; cu: 0.8 wt% to 1.2 wt%; 0.6 wt% to 1.0 wt% of Zn; fe: lt; the aluminum alloy comprises the following components in percentage by weight: 0.5 wt% of Al, 3.0 wt%-7.0 wt% of silicon carbide whiskers, the sum of inevitable impurities such as Ti, B, Ca and the like is controlled to be 0.1 wt% or below, and the balance of Al. The yield strength of the material reaches 410-510 MPa, the tensile strength reaches 310-350 MPa, and meanwhile the ductility of the material is not lower than 12%.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a precision-molded aluminum alloy material suitable for high-strength and tough structural parts of new energy vehicles and a preparation method thereof. Background technique [0002] Aluminum alloy components for new energy vehicles mainly include body, wheels, chassis, anti-collision beams, floors, power batteries and seats. The body includes the body frame made of high-performance aluminum profiles, the skin and doors made of high-precision aluminum plates, the aluminum alloy wheels and chassis include high-strength large-section aluminum profile structural parts and aluminum alloy forgings, and the anti-collision beam made of aluminum profiles Bumpers, new energy bus floors, lithium-ion batteries, aluminum-ion batteries (including battery positive aluminum foils, battery aluminum shells and battery aluminum trays), new energy bus seat systems, etc. The ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/06C22C49/14C22C47/12C22C101/14
CPCC22C49/06C22C49/14C22C47/12
Inventor 庞逸凡陈曦罗云斌姚瑶赵华
Owner 苏州慧驰轻合金精密成型科技有限公司
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