Laser Shock Peening
Fundamentals and Advances
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Chapter
Quality Control Technology of Structures with Laser Shock Peening
The main purpose of LSP of blades is to improve the fatigue strength, thereby extending the service life.
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Chapter
Characteristics and Development Status of Laser Shock Peening
The absorption layer on the metal surface absorbs the laser energy and explodes and evaporates, producing plasma with high temperature (>10000 K) and high pressure (>1 GPa) when the laser with short pulse (sev...
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Chapter
Stability Factors and Safety Protection of Laser Shock Peening
With the development of laser device technology, the frequency of intense pulse laser can reach 1 Hz or even more than 10 Hz, and the processing efficiency of laser shock intensification has been greatly impro...
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Chapter
Evaluations of the Strengthening Effect of the Metals with Laser Shock Peening
Laser shock peening induced high-pressure shock waves into the interior of the target material, causing severe plastic deformation on the surface of the target, and introducing a high-amplitude residual compre...
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Chapter
Laser Shock Hardening Industrial Application System
Laser shock peening requires high peak power of laser output, and there should be a power density of GW/cm2 on a large enough spot. Almost all of the first researches on laser shock peening are Q-switched Nd glas...
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Chapter
Numerical Analysis of Mechanical Effects of Laser Shock Peening
Laser shock peening consists of 3 stages. The first stage is the light-wave conversion, which consists of the conversion of the laser beam into a plasma shock wave. In this process.
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Chapter
Strengthening Processes and Effect Evaluations of Airplane Structures with Laser Shock Peening
The research on LSP began in the 1970s when the main purpose was to improve the fatigue life of aircraft aluminum alloy structures.
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Chapter
Strengthening Processes and Effect Evaluation of Welded Structures with Laser Shock Peening
Early research on LSP was mainly carried out on aluminum alloy welded joints, but there has been no substantial application.
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Book
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Article
Surface Integrity of TA19 Notched Simulated Blades with Laser Shock Peening and Its Effect on Fatigue Strength
To reveal the fatigue strengthening mechanism of TA19 notched simulated blades with laser shock peening (LSP), surface integrity and fatigue strength were investigated. The surface morphology, residual stress,...
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Article
Study of the location of testing area in residual stress measurement by Moiré interferometry combined with hole-drilling method
This paper investigates the effect of the location of testing area in residual stress measurement by Moiré interferometry combined with hole-drilling method. The selection of the location of the testing area i...
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Article
A micro-scale strain rosette for residual stress measurement by SEM Moiré method
In this paper, a new method combining focused ion beam (FIB) and scanning electron microscope (SEM) Moiré technique for the measurement of residual stress at micro scale is proposed. The FIB is employed to int...
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Article
Surface profile and microstructure of laser peened Ti-6Al-4V
The surface profile of laser peening with square spots was compared with that of circle spots, and the microstructure of laser peened titanium alloy Ti-6Al-4V in the center of a square spot and at the edge of ...
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Chapter and Conference Paper
Investigation on the Key Techniques of Confined Medium and Coating Layer for Laser Shock Processing on Aeroengine Blade
Laser shock processing (LSP) is an advanced technology of surface treatment, which can remarkably extend fatigue life and improve corrosion resistance of aeroengine blades. Some key techniques are investigated...
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Article
Effects on mechanical properties in electron beam welding of TC4 alloy by laser shock processing
The surface of TC4 titanium alloy welding line by electron beam welding (EBW) was processed by high power Q-switched and repetition-rate Nd: glass laser. Effects of laser power and spot diameter on residual st...
