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Aging technology for optimizing weldability of aluminum alloy A7N01-T5

A technology of aluminum alloy and weldability, which is applied in the field of aging technology to achieve the effect of optimizing welding performance

Inactive Publication Date: 2012-12-26
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are many kinds of aging processes for aluminum alloy A7N01-T5, but there are few studies on optimizing its weldability, especially the influence of aging processes on the weldability of aluminum alloys

Method used

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  • Aging technology for optimizing weldability of aluminum alloy A7N01-T5
  • Aging technology for optimizing weldability of aluminum alloy A7N01-T5
  • Aging technology for optimizing weldability of aluminum alloy A7N01-T5

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1, heat the A7N01-T5 aluminum alloy profile to 475°C with an electric blast oven, keep it warm for 1 hour, then age it naturally for 96 hours, then use this equipment to perform artificial aging at 95°C for 8 hours, and then set the temperature to 150°C Carry out artificial aging for 6h. The ZEISS-AXIO inverted material microscope was used to observe its metallographic structure, and the above-mentioned A7N01-T5 aluminum alloy profiles were welded with a Fronius TPS5000-MIG welding machine, and the test pieces were inspected by inspection equipment after welding.

Embodiment 2

[0025] Example 2, heat the A7N01-T5 aluminum alloy profile to 475°C in an electric blast oven, keep it warm for 1.5 hours, then age it naturally for 96 hours, then use this equipment to perform artificial aging at 95°C for 8 hours, and then set the temperature to 150°C Carry out artificial aging for 8h. The ZEISS-AXIO inverted material microscope was used to observe its metallographic structure, and the above-mentioned A7N01-T5 aluminum alloy profiles were welded with a Fronius TPS5000-MIG welding machine, and the test pieces were inspected by inspection equipment after welding.

Embodiment 3

[0026] Example 3, heat the A7N01-T5 aluminum alloy profile to 475°C in an electric blast oven, keep it warm for 2 hours, then age it naturally for 96 hours, then use this equipment to perform artificial aging at 95°C for 8 hours, and then set the temperature to 150°C Carry out artificial aging for 10h. The ZEISS-AXIO inverted material microscope was used to observe its metallographic structure, and the above-mentioned A7N01-T5 aluminum alloy profiles were welded with a Fronius TPS5000-MIG welding machine, and the test pieces were inspected by inspection equipment after welding.

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Abstract

The invention discloses an aging technology for optimizing weldability of an aluminum alloy A7N01-T5, which comprises the following steps: firstly, heating the aluminum alloy A7N01-T5 to be at 475 DEG C and keeping the temperature for 1-2h; naturally aging the aluminum alloy A7N01-T5 for 96h; keeping the temperature of the aluminum alloy A7N01-T5 for 8h at 95 DEG C; and lastly, keeping the temperature of the aluminum alloy A7N01-T5 for 6h-10h at 150 DEG C. The tissue and the property of a base material are changed by utilizing the aging technology provided by the invention, so that the defects of splashing, black ash, microscopy crack, exceeding internal porosity, and the like, of the A7N01-T5 aluminum alloy section bar generated during a welding process are overcome, and the weldability of the aluminum alloy section bar is optimized.

Description

technical field [0001] The invention relates to an aging process for optimizing the weldability of aluminum alloy A7N01-T5. Background technique [0002] In the prior art, there are many kinds of aging processes for aluminum alloy A7N01-T5, but there are few studies on optimizing its weldability, especially the influence of aging processes on the weldability of aluminum alloys. Therefore, it is necessary to study an aging process to optimize the weldability of A7N01-T5 aluminum alloy profiles, change the structure and properties of the base metal, and eliminate the A7N01-T5 aluminum alloy profiles on the premise that the structure and properties of the base metal meet the standard requirements. Defects such as spatter, black ash, micro-cracks, and excessive internal pores are formed during welding, and the welding performance of aluminum alloy profiles is optimized. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide an a...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 张明铭杨志勇黄明齐芃芃
Owner CHINA ZHONGWANG
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