Indian Welding Journal

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Investigations on the Performance Characteristics of GMAW Power Sources


Affiliations
1 JJ College of Engineering and Technology, Tiruchirappalli, India
2 Sastra University, Thanjavur, India
3 Welding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli, India
     

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Performance evaluation of the transistorized and invertor type GMAW power source under various modes of operations as continuous, pulsed and dual pulse is discussed in this paper. The performance of the power source has been evaluated with respect to the variation of current and voltage under different wire feed rates. The data is analyzed for identification of optimum working range of current and voltage with reference to less spatter, porosity and good weld bead appearance. Based on the results, the choice of the GMAW power sources for different applications is established. This study provides wider scope for introduction of automation of welding.

Keywords

GMAW, Dual Pulse, Transistorized, Inverters and Power Source Characteristics.
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  • Investigations on the Performance Characteristics of GMAW Power Sources

Abstract Views: 457  |  PDF Views: 4

Authors

Rohith Joseph
JJ College of Engineering and Technology, Tiruchirappalli, India
M. Salai Selva Rani
Sastra University, Thanjavur, India
K. Devakumaran
Welding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli, India
P. R. Venkateswaran
Welding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli, India

Abstract


Performance evaluation of the transistorized and invertor type GMAW power source under various modes of operations as continuous, pulsed and dual pulse is discussed in this paper. The performance of the power source has been evaluated with respect to the variation of current and voltage under different wire feed rates. The data is analyzed for identification of optimum working range of current and voltage with reference to less spatter, porosity and good weld bead appearance. Based on the results, the choice of the GMAW power sources for different applications is established. This study provides wider scope for introduction of automation of welding.

Keywords


GMAW, Dual Pulse, Transistorized, Inverters and Power Source Characteristics.



DOI: https://doi.org/10.22486/iwj%2F2013%2Fv46%2Fi1%2F141198