Detection of short circuit in pulse gas metal arc welding process

• Autorzy: Yarlagadda P. K. D. V. , Praveen P. , Madasu V. K. , Rhee S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper discusses several methods of detecting occurrence of short circuit and short circuit severity in pulse gas metal arc welding process (GMAW-P). Design/methodology/approach: Welding experiments with different values of pulsing parameter and simultaneous recording of high speed camera pictures and welding signals (such as current and voltage) were used to identify the occurrence of short circuit and its severity in GMAW-P process. The investigation is based on the measurement of welding signals specifically current and voltage signals and their synchronization with high speed camera to investigate the short circuit phenomenon in GMAW-P process. Findings: The results reveal that short circuit can be detected using signal processing techniques and its severity can be predicted by using statistical models and artificial intelligence techniques in GMAW-P process. Research limitations/implications: Several factors are responsible for short circuit occurrence in GMAW-P process. The results show that voltage and current signal carry rich information about the metal transfer and especially short circuit occurrence in GMAW-P process. Hence it's possible to detect short circuit occurrence in GMAW-P process. Future work should concentrate on development of advance techniques to improve reliability of techniques mentioned in this paper for short circuit detection and prediction in GMAW-P process. Originality/value: For achieving atomization of the welding processes, implementation of real time monitoring of weld quality is essential. Specifically for GMAW-P process which is widely used for light weight metal which is widely gaining popularity in manufacturing industry. However, in case of GMAW-P process hardly any attempt is made to analyse techniques to detect and predict occurrence of short circuit. This paper analyses different techniques that can be employed for real time monitoring and prediction of short circuit and its severity in the GMAW-P process.

Słowa kluczowe

EN

short circuit; pulse welding; gas metal arc welding; GMAW-P

PL

zwarcie; spawanie impulsowe; spawanie elektrodą topliwą w osłonach gazowych; impulsowe spawanie elektrogazowe; GMAW-P

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 24, nr 1
• Strony: 328--332
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Yarlagadda P. K. D. V.

autor

Praveen P.

autor

Madasu V. K.

autor

Rhee S.

• School of Engineering Systems, Queensland University of Technology,

Bibliografia

• [1] P. Praveen, M.J. Kang, P. K. D. V. Yarlagadda, Arc voltage behavior of one drop per pulse mode in GMAW-P, Journal of Achievements in Materials and Manufacturing Engineering, 17 (2006) 201-204.
• [2] P. Praveen, M.J. Kang, P.K.D.V. Yarlagadda, Characterization of dynamic behavior of short circuit in pulse gas metal arc welding of aluminum, Journal of Achievements in Materials and Manufacturing Engineering 14 (2006) 75-82.
• [3] M. Hanmandlu, M. H. M. Yusof, V.K. Madasu, Off-line signature verification and forgery detection using fuzzy modeling, Pattern Recognition 38/3 (2005) 341-356.