Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional de Colombia
2018
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| _version_ | 1876466621800775680 |
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| author | David Bernardo Hoyos Arango |
| author_facet | David Bernardo Hoyos Arango |
| contents | Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development David Bernardo Hoyos Arango Oscar León Mejía López Jorge Enrique Giraldo Barrada Ingeniería WPS MTM map stubbing Metal transfer mode (MTM) short circuit frequency map A short circuit frequency map was constructed for GMAW-S using a carbon steel filler metal class AWS ER70S-6 and 75%Ar-25%CO2 shielding gas. This kind of map is proposed as a tool for selecting GMAW-S currents and voltages that enable welds with higher stability and quality. The map was constructed by analyzing current and voltage signals recorded during welding applications at 5000 samples/second. Adequate operation regions were defined over the map based on visual inspection results of bead-on-plate welds and the establishment of instability boundaries. Some examples were analyzed by locating two common parameters for industrial welding qualification (current and voltage) and drawing the limits established by AWS D1.1:2015 code for these essential variables (±7% PQR voltage and ±10% PQR amperage) on the frequency map. The results show that sometimes these limits may contain regions with poor stability related to electrode stubbing against the base metal and lack of arc re-ignition. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49657889031 https://www.redalyc.org/journal/496/49657889031/ https://www.redalyc.org/journal/496/49657889031/html/ https://www.redalyc.org/journal/496/49657889031/49657889031.epub https://www.redalyc.org/journal/496/49657889031/movil 10.15446/dyna.v85n205.69256 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.205 Vol.85 |
| format | Artículo científico |
| id | redalyc_49657889031 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development David Bernardo Hoyos Arango Ingeniería WPS MTM map stubbing Metal transfer mode (MTM) short circuit frequency map Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development David Bernardo Hoyos Arango Oscar León Mejía López Jorge Enrique Giraldo Barrada Ingeniería WPS MTM map stubbing Metal transfer mode (MTM) short circuit frequency map A short circuit frequency map was constructed for GMAW-S using a carbon steel filler metal class AWS ER70S-6 and 75%Ar-25%CO2 shielding gas. This kind of map is proposed as a tool for selecting GMAW-S currents and voltages that enable welds with higher stability and quality. The map was constructed by analyzing current and voltage signals recorded during welding applications at 5000 samples/second. Adequate operation regions were defined over the map based on visual inspection results of bead-on-plate welds and the establishment of instability boundaries. Some examples were analyzed by locating two common parameters for industrial welding qualification (current and voltage) and drawing the limits established by AWS D1.1:2015 code for these essential variables (±7% PQR voltage and ±10% PQR amperage) on the frequency map. The results show that sometimes these limits may contain regions with poor stability related to electrode stubbing against the base metal and lack of arc re-ignition. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49657889031 https://www.redalyc.org/journal/496/49657889031/ https://www.redalyc.org/journal/496/49657889031/html/ https://www.redalyc.org/journal/496/49657889031/49657889031.epub https://www.redalyc.org/journal/496/49657889031/movil 10.15446/dyna.v85n205.69256 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.205 Vol.85 |
| title | Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development |
| topic | Ingeniería WPS MTM map stubbing Metal transfer mode (MTM) short circuit frequency map |
| url | https://www.redalyc.org/articulo.oa?id=49657889031 https://www.redalyc.org/journal/496/49657889031/ https://www.redalyc.org/journal/496/49657889031/html/ https://www.redalyc.org/journal/496/49657889031/49657889031.epub https://www.redalyc.org/journal/496/49657889031/movil |