Evaluation of a Welding Power Source
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Authors
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Welding Research Institute, BHEL, Trichy ,IN
S. Manoharan -
Welding Research Institute, BHEL, Trichy ,INK. L. Rohira
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Welding Research Institute, BHEL, Trichy ,INA. Raja
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Electrical & Electronics Engg. Dept., REC, Trichy ,INS. Palani
Abstract
A number of power sources are available today from different manufacturers for MIG/MAG welding. Thyristor power sources and transistor power sources are gaining popularity. The performance of MIG/ MAG welding power supplies is heavily dependent on their dynamic properties. However, present day codes are not adequate for evaluating the power source since dynamic properties are not taken in to consideration.
In this paper a simplified method is proposed for evaluation of a given power source which can form guidelines for ordering a new power source as well as to evaluate the same. Evaluation of arc stability, arc ignition and spatter level, are some of the factors considered in the present study.
