An experimental study on the prediction of back-bead geometry in pipeline using the GMA welding process

• Autorzy: Kim J.S. , Kim I. S. , Lee J.H. , Jung S.M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this research paper is to select optimal welding condition for a root-pass welding for pipeline and to provide a best process for desirable welding quality. Design/methodology/approach: In this study, a variety of welding experiments were carried out to optimize an automated welding process using a GMA (Gas Metal Arc) process, these has been applied for root-pass welding. Welding current, welding speed, wire feed speed and torch angle were chosen as input parameters, while back-bead geometry representing quality of root-pass welding as output parameter. Findings: Based on the results from welding experiments, optimal welding conditions were selected after analyzing correlation between welding parameters and back-bead geometry such as back-bead width and back-bead height. Moreover, not only effectiveness of empirical models developed was compared and analyzed. The optimized empirical models were finally developed for predicting back-bead geometry by analyzing the main effect of each factor and their influence on interaction. Research limitations/implications: This research was concentrated on the developed empirical models that can predict back-bead width and height for root-pass welding in pipeline. Originality/value: This study is intended to define correlations between process parameters and back-bead geometry as welding quality and eventually select optimal welding condition by performing root-pass welding experiment under various conditions.

Słowa kluczowe

EN

welding; GMA welding; pipeline

PL

spawanie; spawanie GMA; rurociąg

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2011
• Tom: Vol. 49, nr 1
• Strony: 53--61
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Kim J.S.

autor

Kim I. S.

autor

Lee J.H.

autor

Jung S.M.

• Department of Mechanical Engineering, Mokpo National University, 534-729, South Korea,

Bibliografia

• [1] J.W. Jeong, I.S. Kim, H.H. Na, J.H. Lee, S.H. Hong, A Study on the Selection of Optimal Conditions in V-Groove Root-pass Welding of STS316L, Proceeding of the KAMES 2010 Joint Symposium, 2010, 275-276.
• [2] N.A. Sosin Optimization of the Conditions of Plasma Welding with a Penetration Arc, Welding Journal 67/4 (1988) 311-314.
• [3] V.V. Bashenko, N.A. Sosin. Optimization of the Plasma Arc Welding Process, Welding Journal 67/10 (1988) 233-237.
• [4] R. Gaillard, S. Debiez, M. Hubert, J. Defourny. Methods for Optimizing the Preheat Temperature in Welding, Welding in the World 26/9 (1988) 230-249.
• [5] S. Kikushima, R. Katsutani, Development of a Parameter Generating System for Arc Welding based on Heat Conduction Analysis, Welding International 9 (1987) 829-834.
• [6] D. Kim, M. Kang S. Rhee, Determination of optimal welding conditions with a controlled random search procedure, Welding Journal 84 (2005) 125-130.
• [7] J. Raveendra, R.S. Parmar, Mathematical models to predict weld bead geometry for flux cored arc welding, Metal Construction 19/2 (1987) 31-35.