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An Experimental study on Prediction of Back-bead Geometry in Pipeline Using the GMA Welding Process  

Kim, Ji-Sun (목포대학교 기계공학과)
Kim, Ill-Soo (국립목포대 기계공학과)
Na, Hyun-Ho (국립목포대 기계공학과)
Lee, Ji-Hye (국립목포대 기계공학과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.20, no.1, 2011 , pp. 74-80 More about this Journal
Abstract
In this study, a variety of welding experiments were carried out to optimize root-pass welding process using GMA process. Based on the experimental results, optimal welding conditions were selected after analyzing correlation between welding parameters and back-bead geometry. Then, effectiveness of empirical models developed was compared and analyzed, and optimized empirical models were finally developed for predicting back-bead by analyzing the main effect of each factor which affects back-bead geometry and their influence on interaction. Also, functions proper for expressing the surface of back-bead were selected using diverse quadratic functions, and back-bead geometry was visualized using empirical models developed and quadratic functions.
Keywords
GMA welding; Root-pass welding; Empirical model; Back-bead prediction;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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