Groove sidewall penetration modeling for rotating arc narrow gap MAG welding

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• 作者：Wenhang Li (1) (2)
  Kai Gao (1)
  Jing Wu (3)
  Jiayou Wang (1)
  Yunhong Ji (1)
  
  1. School of Materials Science and Engineering ; Jiangsu University of Science and Technology ; Zhenjiang ; 212003 ; Jiangsu Province ; China
  2. Jiangsu Modern Shipbuilding Technology Co. ; Ltd. ; Zhenjiang ; 212003 ; China
  3. Department of Mechanical Engineering ; Aerospace and Biomedical Engineering ; The University of Tennessee ; Knoxville ; TN ; 37996-2210 ; USA
  
• 关键词：Rotating arc ; Narrow gap MAG welding ; Penetration modeling ; Support vector machine
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：78
• 期：1-4
• 页码：573-581
• 全文大小：2,665 KB
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• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

It is important to predict the groove sidewall penetration for narrow gap MAG welding quality control. In this paper, we present a hybrid model to describe the groove sidewall penetration dynamics. First, sensing system was set up to obtain and fuse the signal from arc sensor, visual sensor, and sidewall penetration sensor. Next, the center position of the rotating arc was varied to generate the experimental data. Due to the fact that sidewall penetration on the left side varies greater than that on the right side, a support vector machine (SVM)-based dynamic model was built to predict the penetration on the left side and a cubic polynomial regression model for the right side. The model developed in this paper can be applied to the further penetration control.