Influence of GMAW-P current waveforms on heat input and weld bead shape
| Autor: | R. Richardson, A. Joseph, D. Harwig, Dave F. Farson |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Science and Technology of Welding and Joining. 10:311-318 |
| ISSN: | 1743-2936 1362-1718 |
| DOI: | 10.1179/174329305x40624 |
| Popis: | Manufacturers use different, proprietary pulse current programming algorithms in their synergic 'one knob control' pulsed gas metal arc welding (GMAW-P) power supplies. Since the different pulse waveforms produced by these supplies can produce somewhat different welding characteristics, inconsistent results can be obtained when transferring welding procedures between different GMAW-P power supplies. A primary objective of this work was to characterise the differences in welding heat input and weld bead shape that could be produced by the pulsed current waveforms from four different commercial supplies. To eliminate the affects of subtle differences in electrical characteristics and to ensure that the exact shape of all waveforms was fully known, the comparison was also done by simulating the waveforms generated by three of the four power supplies on the fourth supply, which was equipped with waveform programming capability. Then, the four waveforms were used to create 'bead on plate' welds over a ... |
| Databáze: | OpenAIRE |
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