Application of Laser Shock Processing
نویسندگان
چکیده
منابع مشابه
Tensile properties and fatigue behavior of AHSS-DP 350/600 subjected to laser shock processing
This work presents the effects of strain rate on the tensile properties and fracture morphologies of AHSS-DP 350/600 subjected to LSP. Fatigue crack growth test was performed to evaluate fatigue behavior in the metallic plate of AHSS-DP350/600. However, this material is used in automobile industry and enhancing it fatigue resistance is a challenge in material engineering. In order to evaluate a...
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Laser shock processing of copper using focused laser beam size about ten microns is investigated for its feasibility and capability to impart desirable residual stress distributions into the target material in order to improve the fatigue life of the material. Shock pressure and strain/stress are properly modeled to reflect the micro scale involved, and the high strain rate and ultrahigh pressu...
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Microscale Laser Shock Processing (LSP) is a technique that may be potentially used to manipulate the residual stress distributions in metal film structures and thus improve the reliability performances of micro-devices. In this study, microscale LSP of copper thin films on single crystal silicon substrates is investigated. Curvature measurements verify that substantial average compressive resi...
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This paper reports modeling improvements for micro-scale laser shock processing (LSP), fatigue testing of shock processed copper samples, and microstructure characterization of shock processed materials (Cu and Ni). Plasma expansion is modeled as laser supported combustion wave, in which radial and axial expansions are considered. Stress/strain analysis is extended to three-dimensional and take...
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Previous work has reported numerical and experimental results pertaining micro-scale laser shock processing, which imparts compressive residual stresses in metallic targets with higher spatial resolution. In this paper, the more detailed physical process of laser-liquid-solid interaction is considered to achieve more accurate simulation results of shock pressure and to provide values for coeffi...
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ژورنال
عنوان ژورنال: Manufacturing Technology
سال: 2015
ISSN: 1213-2489,1213-2489
DOI: 10.21062/ujep/x.2015/a/1213-2489/mt/15/3/278