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portada Study on Laser Shock Processing
Type
Physical Book
Language
English
Pages
140
Format
Paperback
Dimensions
22.9 x 15.2 x 0.8 cm
ISBN13
9786202434591

Study on Laser Shock Processing

Qu, Xiangming; Wei, Lei; Zhang, Yongkang (Author) · LAP Lambert Academic Publishing · Paperback

Study on Laser Shock Processing - Qu, Xiangming; Wei, Lei; Zhang, Yongkang

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Synopsis "Study on Laser Shock Processing"

This paper investigates the FGH95 powder alloy used for turbine discs, focusing on the laser incidence angle based on the disc's tongue and groove structure. It examines how different LSP treatment parameters affect the surface integrity of FGH95 materials and analyzes the residual stress release mechanism post-treatment, establishing an analytical model for this process.The study explores how laser processing parameters and temperature influence tensile fatigue and micro-motion fatigue performance in relation to damage conditions of turbine disc tongues and grooves. Additionally, it analyzes cracking mechanisms under both types of fatigue.A pressure distribution model is developed to align with the shock wave generated by oblique laser incidence, validated against experimental data. This modified model is then employed for finite element simulations of the tenon-groove structure in FGH95 turbine discs, with results corroborated through experiments.

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