Research on Laser Shock Induced Composite Forming of Copper Foil Flyer

2012 ◽  
Vol 39 (7) ◽  
pp. 0703009
Author(s):  
周建忠 Zhou Jianzhong ◽  
高彬 Gao Bin ◽  
黄舒 Huang Shu ◽  
刘会霞 Liu Huixia ◽  
陈寒松 Chen Hansong ◽  
...  
2013 ◽  
Vol 535-536 ◽  
pp. 306-309 ◽  
Author(s):  
Balasubramanian Nagarajan ◽  
Sylvie Castagne ◽  
Zhong Ke Wang

This paper reports on a novel microforming technique, Flexible-Pad Laser Shock Forming (FPLSF) which uses laser-induced shock waves and a flexible pad to induce plastic deformation on metallic foils. Thickness distribution at the cross-section of the craters formed by FPLSF is analyzed experimentally with respect to laser fluence, which is a significant process variable that controls the deformation pressure. Furthermore, hardness of the deformed samples at the cross-section is measured by nanoindentation testing. It is found that the thinning of copper foil by FPLSF ranges from 7% to 25% for laser fluence ranging between 7.3 J/cm2 and 20.9 J/cm2. Thinning is maximum at the crater center, which can be attributed to the maximum compressive stresses in the thickness direction, and minimum at the edge portions. With increase in laser fluence, thinning of the foil increases whereas minimum change in hardness is observed. The variation in thinning across different crater locations ranges between 6% and 8% only, which indicates that FDLSF can be developed as a competitive technique to produce components with uniform thickness distribution.


2018 ◽  
Vol 105 ◽  
pp. 35-42 ◽  
Author(s):  
Chao Zheng ◽  
Xiu Zhang ◽  
Yiliang Zhang ◽  
Zhong Ji ◽  
Yiguo Luan ◽  
...  

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1264
Author(s):  
Di Huang ◽  
Jiaxiang Man

The microscale structures prepared on copper foil by laser shock deformation was introduced in the paper. The various sizes of hexagonal structures were successfully fabricated on copper foil with different molds. The influence of laser energy on the deformation depth of a hexagonal structure was studied using experiments. The morphology of the hexagonal structures on copper foil was observed by a three-dimensional profilometer, and mechanical property were characterized by a nanoindenter. A finite element model was established in order to describe the copper foil forming mechanism on mold and calculate the residual stress distribution. The microstructures and cross-section deformation of copper foil on different molds were also observed. The results indicated that the depth of hexagonal structures on 50# mold was higher than that of the structures on 100# mold and 230# mold, and the depth of hexagonal structures increased with the increasing of pulse laser energy. The copper foil above the mold hexagon side was bent and thinned after laser shock, and the grains of copper foil were also refining. The mechanical properties of copper foil were improved after laser shock was performed on the mold.


2018 ◽  
Vol 258 ◽  
pp. 155-164 ◽  
Author(s):  
Xiangying Wang ◽  
Zhong Ji ◽  
Jianfeng Wang ◽  
Shuxin You ◽  
Chao Zheng ◽  
...  

2020 ◽  
Vol 127 ◽  
pp. 106205
Author(s):  
Chao Zheng ◽  
Zhirui Tian ◽  
Xinhai Zhao ◽  
Yongchao Tan ◽  
Guofang Zhang ◽  
...  

2019 ◽  
Vol 115 ◽  
pp. 390-397 ◽  
Author(s):  
Xiao Wang ◽  
Kai Sun ◽  
Youjuan Ma ◽  
Zongbao Shen ◽  
Fei Liu ◽  
...  

Author(s):  
Yang Haifeng ◽  
Xiong Fei ◽  
Wang Yan ◽  
Jia Le ◽  
Liu Hao ◽  
...  
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