Effect of the Process Parameters on the Indentation Size of Particle Deposited Using Supersonic Laser Deposition

In order to solve the wear repair problem of large steam turbine rotor shaft journal, the material of steam turbine rotor shaft was used as a substrate and the self-made special laser cladding remanufacturing powder as the experimental material, and the experiments were carried out by a laser cladding remanufacturing method based on the laser cladding remanufacturing system with coaxial powder feeder. Focusing on effect of different widths of laser cladding layers on total indicated runout (TIR) of steam turbine rotor, the experiment research and mechanism simulation verification were performed, and the influence mechanism of different factors were analyzed. The total data indicates runout are closely related to probe diameter and laser cladding layer width. The width of cladding layer determines the turbine rotor surface magnetic, eddy current density and magnetic flux density distribution. Due to the interference of matrix magnetic field and eddy current density of the surface, the magnetic flux density suddenly changes in the laser cladding layer edge when the laser cladding layer width is less than 8 mm. The measurement results are too large caused by the comprehensive effect of the substrate and the laser cladding layer. According to the numerical simulation of magnetic flux density distribution of measured metal body surface, the critical value of laser cladding width is 9.82 mm.

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Effects of Deflection Scanning of Electron Beam on Microstructure, Hardness and Treated Depth of TC18 Titanium Alloy

Zhang

Peng

et al. 2017

Rare Metal Materials and Engineering

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Effect of the Process Parameters on the Indentation Size of Particle Deposited Using Supersonic Laser Deposition

Cited by 3 publications

References 4 publications

Investigation of coatings of austenitic steels produced by supersonic laser deposition

Investigation of coatings of austenitic steels produced by supersonic laser deposition

Effects of Laser Cladding Layers Width on Total Indicated Runout Characteristics of Steam Turbine Rotor Surface

Effects of Deflection Scanning of Electron Beam on Microstructure, Hardness and Treated Depth of TC18 Titanium Alloy

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