Physical processes in laser ablation into liquid and laser shock wave pinning

The marking system by laser shock wave (LSW) based on liquid crystal mask, which differs entirely from marking by laser ablation (or laser thermal effect), was established. Two-dimension (2D) nondestructive markings based on liquid crystal mask were prepared by LSW, and the distribution of residual stresses in laser-shocked region was measured and analyzed. The results showed that tensile residual stresses of sample surface were converted into compressive residual stresses by LSW, which is a nondestructive marking for aviation key parts.

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Effect of Laser Shock Wave Cleaning Direction on Particle Removal Behavior at Trenchs

ECS Transactions ◽

10.1149/1.3202661 ◽

2019 ◽

Vol 25 (5) ◽

pp. 257-262 ◽

Cited By ~ 1

Author(s):

Jin-Su Kim ◽

Ahmed A. Busnaina ◽

Jin-Goo Park

Keyword(s):

Shock Wave ◽

Particle Removal ◽

Laser Shock ◽

Laser Shock Wave

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Analysis and experiment on deformation of sheet metal by laser shock wave

Frontiers of Mechanical Engineering in China ◽

10.1007/s11465-006-0056-5 ◽

2006 ◽

Vol 1 (4) ◽

pp. 448-451 ◽

Cited By ~ 1

Author(s):

Chao-jun Yang ◽

Yong-kang Zhang ◽

Jian-zhong Zhou ◽

Ming-xiong Ni ◽

Jian-jun Du ◽

...

Keyword(s):

Shock Wave ◽

Sheet Metal ◽

Laser Shock ◽

Laser Shock Wave

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Application of the method of dimensional analysis in laser-shock-wave processing of titanium alloys with shape memory

10.36652/0042-4633-2021-11-66-72 ◽

2021 ◽

pp. 66-72

Author(s):

Keyword(s):

Shock Wave ◽

Finite Element ◽

Plastic Zone ◽

Shape Memory ◽

Dimensional Analysis ◽

Peak Pressure ◽

Laser Shock ◽

Zone Depth ◽

Peak Pressures ◽

Laser Shock Wave

The processes of laser-shock-wave processing of NiTi alloys with shape memory effect are investigated by the methods of dimensional analysis and finite element modeling. The dependences of the depth of the plastic zone on the peak pressure in the shock wave and the duration of the laser pulse are obtained at different peak pressures. Keywords: shape memory alloys, laser-shock-wave processing, dimensional analysis, residual stresses, plastic zone depth. [email protected]

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Research on Formation Mechanism of Dynamic Response and Residual Stress of Sheet Metal Induced by Laser Shock Wave

EPJ Web of Conferences ◽

10.1051/epjconf/201816705007 ◽

2018 ◽

Vol 167 ◽

pp. 05007

Author(s):

Aixin Feng ◽

Yupeng Cao ◽

Heng Wang ◽

Zhengang Zhang

Keyword(s):

Shock Wave ◽

Residual Stress ◽

Dynamic Response ◽

Formation Mechanism ◽

Experimental Studies ◽

Material Surface ◽

Propagation Mechanism ◽

Laser Shock ◽

Surface Residual Stress ◽

Laser Shock Wave

In order to reveal the quantitative control of the residual stress on the surface of metal materials, the relevant theoretical and experimental studies were carried out to investigate the dynamic response of metal thin plates and the formation mechanism of residual stress induced by laser shock wave. In this paper, the latest research trends on the surface residual stress of laser shock processing technology were elaborated. The main progress of laser shock wave propagation mechanism and dynamic response, laser shock, and surface residual stress were discussed. It is pointed out that the multi-scale characterization of laser and material, surface residual stress and microstructure change is a new hotspot in laser shock strengthening technology.

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