3D reconstruction of laser scanning at weld surface defects

YANG Pengcheng; GAO Xiangdong; Lin Shaoduo; Ma Bo; Pan Chunrong

doi:10.12073/j.hjxb.20191101001

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(3): 59-63. > DOI: 10.12073/j.hjxb.20191101001

YANG Pengcheng, GAO Xiangdong, Lin Shaoduo, Ma Bo, Pan Chunrong. 3D reconstruction of laser scanning at weld surface defects[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(3): 59-63. DOI: 10.12073/j.hjxb.20191101001

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3D reconstruction of laser scanning at weld surface defects

1.
Guangdong Provincial Welding Engineering Technology Research Center, Guangdong University of Technology, Guangzhou, 510006, China
2.
Jiangxi University of Science and Technology, Ganzhou, 341000, China

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Received Date: October 31, 2019
Available Online: July 12, 2020

Graphical Abstract

Abstract

Abstract

The surface defects of the workpiece weld bead were detected suing a point laser displacement sensing method. Firstly, the data of weld defect surface was collected and the original data was filtered by Gaussian filtering. Then the Delaunay triangulation was applied for the processed data points and reconstruction of a three-dimensional model with the spatial coordinates. Experimental results showed that the 3D reconstruction method based on the point laser displacement sensing and the surface defect images of the weld bead can accurately judge the appearance of welds.
- laser ranging,
- weld defect,
- triangulation,
- 3D reconstruction

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References

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