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Method and device capable of remarkably improving shock resistance of aviation aluminium alloy material

An aluminum alloy material, a remarkable technology, applied in the field of laser processing and material surface strengthening, can solve the problems of not finding the anti-vibration performance of aviation aluminum alloy materials, unable to improve the service life or noise reduction effect, and improve the vibration damping of materials, so as to improve the Service life and noise reduction effect, easy to intelligent control, improve the effect of vibration damping

Active Publication Date: 2014-07-23
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents all improve the anti-vibration performance of the material or the workpiece from the aspect of the part structure, but do not improve the vibration damping of the material from the perspective of the material itself, and cannot improve the service life or noise reduction effect of the material itself under vibration conditions.
[0004] Through the search of domestic and foreign literature, there is no relevant report on improving the anti-vibration performance of aviation aluminum alloy materials by using laser warm shot peening and rapid quenching method.

Method used

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  • Method and device capable of remarkably improving shock resistance of aviation aluminium alloy material
  • Method and device capable of remarkably improving shock resistance of aviation aluminium alloy material
  • Method and device capable of remarkably improving shock resistance of aviation aluminium alloy material

Examples

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Embodiment 1

[0032] Such as Figure 1-4 shown.

[0033] The following takes 6061-T6 aviation aluminum alloy as an example to further explain the non-structural improvement method to improve its anti-vibration performance. The principle is as follows image 3 As shown, the specific steps include:

[0034] A) First inject the prepared aqueous solution for cooling and silicon oil for restraint into the water tank 23 and the oil tank 21 respectively, and start the cold air device 24 to pre-cool the aqueous solution to 5-8°C. The aqueous solution is preferably made of water, water-based rust inhibitor and The mixed solution prepared by silicone oil cleaning agent is configured according to the strict volume ratio of 1:0.01:0.05. This aqueous solution can realize cooling while avoiding oxidation of the aluminum alloy surface, and at the same time can clean the residual silicone oil on the surface of the workpiece after shot peening.

[0035] B) Fix the 6061-T6 workpiece 8 coated with high-temp...

Embodiment 2

[0041] Such as Figure 1-2 shown.

[0042] A device that can significantly improve the anti-vibration performance of aviation aluminum alloy materials, such as figure 1 and figure 2 As shown: an electromagnetic transposition device is installed on the horizontal position of the vertical motion table 12. The electromagnetic transposition device includes a guide rail 13, a solenoid valve I 14 and a solenoid valve II 30, and an iron collection box that can move horizontally is installed on the guide rail 13. The middle of the collection box is divided into two chambers by a metal plate—the water storage chamber 29 and the oil storage chamber 16, such as figure 2 As shown, the bottoms of the two chambers are processed with outlets I and II respectively connected to the inlets of the water tank 23 and the oil tank 21 through the water guide pipe 15 and the oil guide pipe 19. The inlet of water pump 27 and oil pump 26 connects water tank 23 and oil tank 21 by water inlet pipe 2...

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Abstract

The invention discloses a method and a device capable of remarkably improving the shock resistance of an aviation aluminium alloy material. The device comprises a laser device, a clamp, a heating platform, a moving platform, a refrigeration loop, a restraint system and a computer system. The method disclosed by the invention comprises the following steps of: obtaining high-density dislocation and dislocation tangle on the surface of the material on the basis of dynamic strain aging and by virtue of warm laser shot blasting, and generating an obvious grain refinement organization simultaneously; and after the shot blasting is finished, sharply cooling a workpiece in aqueous solution at 5-8 DEG C, reducing dislocation annihilation and a grain growth process, and finally obtaining a microstructure with coexisting high-density dislocation and ultra-fine grains at a room temperature, thus increasing the damping of the material and improving the shock resistance of the material. The method and the device disclosed by the invention are capable of greatly improving the shock resistance of the material, simple in process and low in cost.

Description

technical field [0001] The invention relates to the field of surface strengthening of materials and the field of laser processing technology, especially a technology for improving the anti-vibration performance by using material strain, specifically, a technology that can significantly improve the performance of aviation aluminum alloy materials by using laser temperature shot peening combined with rapid cooling technology. Method and apparatus for anti-vibration performance. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Its "specific strength" (the ratio of strength to specific gravity σ b / ρ) is better than many alloy steels, and has become an ideal structural material, widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc. Among them, aviation aluminum alloy is suitable for Various high-load parts, such as aircraft engine parts, fuselage, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04
Inventor 周建忠孟宪凯黄舒陈寒松盛杰朱炜立韩煜航周宏达苏纯
Owner JIANGSU UNIV
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