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Numerical Simulation of Temperature Field and Residual Stress Distribution for Laser Cladding Remanufacturing
Author(s) -
Hua Liang,
Tian Wei,
Liao Wenhe,
Zeng Chao
Publication year - 2014
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
ISSN - 1687-8132
DOI - 10.1155/2014/291615
Subject(s) - residual stress , materials science , cladding (metalworking) , remanufacturing , finite element method , composite material , ultimate tensile strength , laser , laser power scaling , residual , stress field , structural engineering , optics , mechanical engineering , mathematics , engineering , physics , algorithm
A three-dimensional finite element model was employed to simulate the cladding process of Ni-Cr-B-Si coatings on 16MnR steel under different parameters of laser power, scanning speed, and spot diameter. The temperature and residual stress distribution, the depth of the heat affected zone (HAZ), and the optimized parameters for laser cladding remanufacturing technology were obtained. The orthogonal experiment and intuitive analysis on the depth of the HAZ were performed to study the influence of different cladding parameters. A new criterion based on the ratio of the maximum tensile residual stress and fracture strength of the substrate was proposed for optimization of the remanufacturing parameters. The result showed well agreement with that of the HAZ analysis.

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