Title:
PULSE CURRENT-ASSISTED ALUMINUM ALLOY LASER PEENING FORMING AND HYDROPHOBIC SURFACE PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/206715
Kind Code:
A1
Abstract:
A pulse current-assisted aluminum alloy laser peening forming and hydrophobic surface preparation method. The preparation method comprises the following steps: a pretreated aluminum alloy is placed on an impact platform (1), and electrodes (3) are respectively mounted on both ends of the aluminum alloy; a surface of the aluminum alloy material serves as an absorption layer, and a flowing silicone oil covered with the surface of the aluminum alloy serves as a restraint layer; laser energy is determined; a high-frequency pulse current is applied to the surface of the aluminum alloy by means of an electrode (3), a peening laser generates laser beams according to the laser energy to impact the surface of the aluminum alloy, the aluminum alloy forms a bent arc surface under the action of electric pulse and laser impact, and a porous micro-nano multistage surface is formed on the impact surface of the aluminum alloy; and the impact surface of the aluminum alloy is chemically modified to reduce the surface energy of the material, so as to obtain a super-hydrophobic arc-shaped aluminum alloy surface. The method can synchronously complete shape control and property control to the aluminum alloy material and the surface appearance, such that an aviation aluminum alloy plate matrix is effectively strengthened.
Inventors:
ZHOU JIANZHONG (CN)
GOU YANQIANG (CN)
LI LI (CN)
ZHANG YU (CN)
MENG XIANKAI (CN)
HUANG SHU (CN)
JIANG GAOQIANG (CN)
LI PENGFEI (CN)
FENG XV (CN)
GOU YANQIANG (CN)
LI LI (CN)
ZHANG YU (CN)
MENG XIANKAI (CN)
HUANG SHU (CN)
JIANG GAOQIANG (CN)
LI PENGFEI (CN)
FENG XV (CN)
Application Number:
PCT/CN2022/097093
Publication Date:
November 02, 2023
Filing Date:
June 06, 2022
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
B23K26/352; B21D26/06; B23K26/00; C21D1/00; C21D1/09; C21D10/00; C22F1/00
Foreign References:
| CN112853086A | 2021-05-28 | |||
| CN103540715A | 2014-01-29 | |||
| CN112111780A | 2020-12-22 | |||
| CN113146049A | 2021-07-23 | |||
| CN103111751A | 2013-05-22 | |||
| CN101007304A | 2007-08-01 | |||
| CN1695873A | 2005-11-16 | |||
| CN102628095A | 2012-08-08 | |||
| CN110578047A | 2019-12-17 | |||
| CN110315210A | 2019-10-11 | |||
| US20130052479A1 | 2013-02-28 | |||
| JP2015105402A | 2015-06-08 |
Other References:
WANG, CHANGCHI: "2024-T351 Aluminum Alloy Laser Shock Convex Forming Experiment and Simulation Research", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE AND TECHNOLOGY I, no. 5, 15 May 2019 (2019-05-15), ISSN: 1674-0246
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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