Evaluation of Arc Stability in Double-Wire DP-GMAW of Aluminum Alloy Based on U-I Graph-Reference-Cited by-同舟云学术

Evaluation of Arc Stability in Double-Wire DP-GMAW of Aluminum Alloy Based on U-I Graph

Published:2021-12-03 Issue:6 Volume:144 Page:
ISSN:1087-1357
Container-title:Journal of Manufacturing Science and Engineering
language:en
Short-container-title:

Author:

Wu Kaiyuan¹²,Zhang Mingjin¹²,Zeng Yucai¹²,Hong Xiaobin¹²,Xie Peimin¹²

Affiliation:

1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;

2. Engineering Research Center for Special Welding Technology and Equipment of, Guangdong Province, South China University of Technology, Guangzhou 510640, China

Abstract

Abstract Severe arc interference in double-wire double pulsed gas metal arc welding (DP-GMAW) can affect the stability of the welding process. In this study, voltage and current waveforms during double-wire DP-GMAW of aluminum (Al) alloy in the 0 deg and 180 deg phase shift modes were recorded. The relationship between arc voltage and welding current was investigated through the output voltage-current (U-I) graph. In addition, arc load characteristics and variation of voltage and current during the DP switching process were analyzed. The arc behavior was recorded throughout the welding process using a high-speed photography system, and the relationship between the U-I graph characteristics and arc stability was further investigated. The experimental results demonstrate that the arc is more stable in the 180 deg phase shift mode. In both phases, the leading arc impedance is more capacitive, and the trailing arc impedance is more resistive.

Funder

China Scholarship Council

National Natural Science Foundation of China

Publisher

ASME International

Subject

Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering

Link

https://asmedigitalcollection.asme.org/manufacturingscience/article-pdf/144/6/061012/6805798/manu_144_6_061012.pdf

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