Mold-free fs laser shock micro forming and its plastic deformation mechanism

Ye, Yunxia; Feng, Y.Y.; Lian, Z.C.; Hua, Yinqun

doi:10.1016/j.optlaseng.2014.11.002

Cited by 21 publications

(3 citation statements)

References 26 publications

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“…In the past several years, a lot of experimental and numerical studies have been conducted to investigate the forming mechanism [4][5][6][7], microstructure [8][9][10][11][12], mechanical properties [8,12], and explore the new applications [13][14][15][16]. But only a few studies have focused on the theoretical analysis of LSF.…”

Section: Introductionmentioning

confidence: 99%

Analytical Models for the Prediction of Deformation in Laser Shock Bulging

Zhang,

Zheng,

et al. 2024

Preprint

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Laser shock forming (LSF) is a novel plastic forming process which utilizes a laser-induced shock wave to deform sheet metals to 3D configurations. Quantitative evaluation of the deformation in LSF is of great importance to understand the forming mechanism and achieve the high precision. In this paper, considering parameters of material, geometry and processing, an analytical model was proposed to predict the deformation of plate in laser shock bulging. Models showed that the deformation is related to the impedances of the metal target and the confining overlay, the density, yield strength and thickness of the material, the radius of the die, and the energy, radius and pulse duration of the laser beam. The deformation profiles and the maximum deformation height calculated by the analytical model agree with those of the experiment, which validate the rationality of the constructed models. The maximum deformation height increases with an increase of laser energy, while it decreases with increasing plate thickness.

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Section: Introductionmentioning

confidence: 99%

Analytical Models for the Prediction of Deformation in Laser Shock Bulging

Zhang,

Zheng,

et al. 2024

Preprint

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“…They fabricated micro features with deformation depth of 80ȝm to 130ȝm and the radius of 485ȝm to 616ȝm was formed on 25ȝm thick copper foils. Ye et al [10] used fs laser and plasticine to produce micro pits on the pure aluminum foil and investigated the effects of important factors, including pulse widths, impacting times and clamping modes. Zhang et al [11] used plasticine as a flexible support to form micro-craters on the surface of aluminum, cooper, and titanium foils.…”

Section: Introductionmentioning

confidence: 99%

The Investigation on Mask and Plasticine Laser Shock Forming

et al. 2016

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Abstract.A novel technology called mask and plasticine laser shock forming (MAPLSF) was introduced to manufacture micro-features on the surface of pure copper foil with the thickness of 40ȝm. In this process, the laser-generated shock wave and plasticine are used to replace the conventional rigid punch and die. The result showed that the shape of laser beam can be roughly manufactured on the surface of the workpiece and this mold-free laser shock forming process is a fast method to fabricate controlled micro-feature on the metallic foils. In this damage-free forming process, the workpicec can keep good surface, because the plasticine is softer than metal foils.

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“…Fale uderzeniowe stosowane do kształtowania przez laserowe młotkowanie (laser peen forming) są wytwarzane za pomocą impulsów nano-, piko-i femtosekundowych, z użyciem lub bez dodatkowej warstwy absorpcyjnej [8][9][10][11]. Ta nowa metoda gięcia folii i blach cienkich jest analizowana pod kątem jej zastosowania w produkcji przyrządów medycznych, sprzętu elektronicznego [11] i ramion zawieszenia głowicy magnetycznej dysku twardego.…”

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Bi-direction laser microbending for MOEMS

Widłaszewski

2016

Mechanik

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Mold-free fs laser shock micro forming and its plastic deformation mechanism

Cited by 21 publications

References 26 publications

Analytical Models for the Prediction of Deformation in Laser Shock Bulging

Analytical Models for the Prediction of Deformation in Laser Shock Bulging

The Investigation on Mask and Plasticine Laser Shock Forming

Bi-direction laser microbending for MOEMS

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