Theoretical analysis and experimental research on laser cladding trajectory for slender shaft

doi:10.13251/j.issn.0254-6051.2021.07.039

Abstract

Abstract: Laser cladding model for slender shaft was established by using ANSYS finite element analysis software based on spiral and raster scanning trajectories, and the temperature field under different cladding trajectories was simulated. The results show that this two kinds of cladding trajectory methods produce heat accumulation, and the spiral laser cladding method is relatively small, while the raster laser cladding method has higher temperature at the suface position of each pass. When using raster laser cladding method, the temperature curve at the center of the slender shaft shows an irregular zigzag upward trend, while the temperature rise trend at center is more obvious when using spiral laser cladding method. In addition, the process test results show that the surface quality of the coating obtained by spiral laser cladding method is relatively ideal, while overburning has occurred when using raster laser cladding method.

Key words: laser cladding, slender shaft, temperature field, cladding track

CLC Number:

TG162.71

Cui Lujun, Hao Chaojie, Guo Shirui, Zheng Bo, Cao Yanlong, Zeng Wenhan. Theoretical analysis and experimental research on laser cladding trajectory for slender shaft[J]. Heat Treatment of Metals, 2021, 46(7): 201-206.

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