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Title:
ULTRASONIC-ASSISTED LASER SHOCK FORMING METHOD AND SYSTEM FOR ALUMINUM ALLOY SHEET
Document Type and Number:
WIPO Patent Application WO/2023/245850
Kind Code:
A1
Abstract:
An ultrasonic-assisted laser shock forming method and system for an aluminum alloy sheet. The method comprises the following steps: defining surfaces of an aluminum alloy sheet as an inner concave surface (6) and an outer convex surface (7) according to sheet bending forming requirements; subjecting the inner concave surface (6) to shock induced a pulsed laser beam (1), and additionally applying ultrasonic shock waves (2) on the outer convex surface (7) at a position corresponding to the laser shock processing; and synchronously moving the pulsed laser beam (1) and the ultrasonic shock waves (2) according to a traveling path to obtain an aluminum alloy sheet having bending curvature. The use of the ultrasonic-assisted laser shock forming technology achieves flexible dieless forming of aluminum alloy sheets, an acoustic softening effect generated by ultrasonic shock-induced high-frequency vibration can effectively improve the plastic forming ability of aluminum alloy sheets, and then macroscopic plastic forming of high-strength aluminum alloy sheets by means of laser shock processing is achieved.

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Inventors:
ZHOU JIANZHONG (CN)
GOU YANQIANG (CN)
XIA XUEFENG (CN)
LI LI (CN)
LI PENGFEI (CN)
JIANG GAOQIANG (CN)
MENG XIANKAI (CN)
HUANG SHU (CN)
Application Number:
PCT/CN2022/114177
Publication Date:
December 28, 2023
Filing Date:
August 23, 2022
Export Citation:
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Assignee:
UNIV JIANGSU (CN)
International Classes:
B23K26/356; B21D26/06; B23K26/0622; B23K26/14; C21D10/00
Domestic Patent References:
WO2018201521A12018-11-08
Foreign References:
CN108796206A2018-11-13
CN109226720A2019-01-18
CN101486129A2009-07-22
CN101332539A2008-12-31
CN112760605A2021-05-07
JP2007169753A2007-07-05
JP2010248634A2010-11-04
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
Download PDF:
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