Title:
LINEAR LIGHT SPOT LASER BENDING METHOD FOR FORMING METAL SHEET
Document Type and Number:
WIPO Patent Application WO/2021/012844
Kind Code:
A1
Abstract:
A linear light spot laser bend method for forming a metal sheet, the method comprising: using a multi-mode laser scanning rotating mirror (6) or a single piezoelectric deformable mirror (11) to convert Gaussian distribution point light spots (5) of a laser into evenly distributed linear light spots (9, 14), while loading the laser onto a bend line (8, 13) area to conduct bend formation on the metal sheet. Thus, a temperature field on the bend line of the metal sheet is evenly distributed, thereby achieving the purposes of reducing warping deformation, increasing bend angle consistency and improving bending efficiency.
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Inventors:
WANG XUYUE (CN)
LI CHENGHANG (CN)
YAN YING (CN)
LI ZIHUI (CN)
GUO DONGMING (CN)
LI CHENGHANG (CN)
YAN YING (CN)
LI ZIHUI (CN)
GUO DONGMING (CN)
Application Number:
PCT/CN2020/096562
Publication Date:
January 28, 2021
Filing Date:
June 17, 2020
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
B21D31/00
Domestic Patent References:
| WO2011058775A1 | 2011-05-19 |
Foreign References:
| CN110314980A | 2019-10-11 | |||
| CN108856474A | 2018-11-23 | |||
| CN206717293U | 2017-12-08 | |||
| CN101332537A | 2008-12-31 | |||
| CN103056521A | 2013-04-24 | |||
| CN1307947A | 2001-08-15 | |||
| CN105057409A | 2015-11-18 |
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