Chinese Journal of Mechanical Engineering >

2021 , Vol. 34 >Issue 5: 89 - 89

DOI: https://doi.org/10.1186/s10033-021-00609-9

Original Article

Oscillation Modes of Weld Pool in Stationary GTAWelding Using Structure Laser Method

  • Xingpei Wu ,
  • Jiankang Huang ,
  • Jing He ,
  • Shien Liu ,
  • Guangyin Liu ,
  • Ding Fan
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  • 1. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China;
    2. Department of Mechanical Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China;
    3. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China

收稿日期: 2020-04-29

  修回日期: 2021-02-04

  网络出版日期: 2022-03-22

基金资助

Supported by National Natural Science Foundation of China (Grant No. 51205197).

收起

Oscillation Modes of Weld Pool in Stationary GTAWelding Using Structure Laser Method

  • Xingpei Wu ,
  • Jiankang Huang ,
  • Jing He ,
  • Shien Liu ,
  • Guangyin Liu ,
  • Ding Fan
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  • 1. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China;
    2. Department of Mechanical Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China;
    3. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China

Received date: 2020-04-29

  Revised date: 2021-02-04

  Online published: 2022-03-22

Supported by

Supported by National Natural Science Foundation of China (Grant No. 51205197).

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摘要

Researchers have recently attempted to monitor pool oscillations using the three-dimensional laser vision method. However, the deficiency of simulation software will result in significant capital expenditure. Both simulations and experiments are performed in this study, and the Bessel equation is used to analyze the oscillation mode of a weld pool. The laser dot matrix images of (0, 1), (1, 1), (2, 1), and (0, 2) oscillation modes at different times are obtained via structured laser optical measurement simulation. The oscillation mode of a stationary gas tungsten arc weld pool is analyzed based on laser dot matrix images obtained from a structure laser experiment. Results show that the simulated laser dot matrix images are consistent with the experiment results. The oscillation mode of the weld pool can be recognized based on the laser dot matrix image. This study not only provides conditions for assessing the penetrating state of a weld pool, but also enable a further understanding of the oscillation mode of a weld pool and the development of more effective observation methods and measurement tools to effectively control and improve welding quality.

关键词： Weld pool surface; GTA welding; Bessel function; Oscillation mode; Geometric optics

本文引用格式

Xingpei Wu , Jiankang Huang , Jing He , Shien Liu , Guangyin Liu , Ding Fan . Oscillation Modes of Weld Pool in Stationary GTAWelding Using Structure Laser Method[J]. Chinese Journal of Mechanical Engineering, 2021 , 34(5) : 89 -89 . DOI: 10.1186/s10033-021-00609-9

Abstract

Researchers have recently attempted to monitor pool oscillations using the three-dimensional laser vision method. However, the deficiency of simulation software will result in significant capital expenditure. Both simulations and experiments are performed in this study, and the Bessel equation is used to analyze the oscillation mode of a weld pool. The laser dot matrix images of (0, 1), (1, 1), (2, 1), and (0, 2) oscillation modes at different times are obtained via structured laser optical measurement simulation. The oscillation mode of a stationary gas tungsten arc weld pool is analyzed based on laser dot matrix images obtained from a structure laser experiment. Results show that the simulated laser dot matrix images are consistent with the experiment results. The oscillation mode of the weld pool can be recognized based on the laser dot matrix image. This study not only provides conditions for assessing the penetrating state of a weld pool, but also enable a further understanding of the oscillation mode of a weld pool and the development of more effective observation methods and measurement tools to effectively control and improve welding quality.

Key words： Weld pool surface; GTA welding; Bessel function; Oscillation mode; Geometric optics

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