Metallic Droplet, Weld Pool Temperatures Evaluation and Pulsed Wave Formulation in the Pulsed GMAW
| Autor: | Rodrigo Rodrigues Nogueira, Régis Henrique Gonçalves e Silva, Fernando Lucas dos Santos e Silva, Arthur Santos, Uallas Henrique de Oliveira de Brito |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Infrared Mechanical Engineering Phase (waves) temperature Welding Mechanics Condensed Matter Physics pulsed law.invention Gas metal arc welding Droplet Dwell time waveform Mechanics of Materials law Electrode GMAW Weld pool TA401-492 Waveform General Materials Science Materials of engineering and construction. Mechanics of materials |
| Zdroj: | Materials Research, Vol 23, Iss 4 (2020) Materials Research v.23 n.4 2020 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Volume: 23, Issue: 4, Article number: e20200074, Published: 16 NOV 2020 |
| ISSN: | 1516-1439 |
| Popis: | This study analyzed the average temperature value of the metallic droplets and weldpool of the Pulsed GMAW welding process using 309L-Si electrode as the addition metal. The study was based on the formulation and evaluation of pulsed waves, starting from the equation of energy constant (or detachment constant), and waveforms from two commercial welding sources, that were evaluated and reproduced. The technique of filming by high speed infrared radiation was used for evaluation. The results point to a higher droplet temperature for a lower intensity of pulse current, due to longer dwell time at this level, and also revealing that a longer time in the base phase may be responsible for a further heating of the fusion pool. |
| Databáze: | OpenAIRE |
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