Metallic Droplet, Weld Pool Temperatures Evaluation and Pulsed Wave Formulation in the Pulsed GMAW
| Autor: | Régis Henrique Gonçalves e Silva, Rodrigo Rodrigues Nogueira, Fernando Lucas dos Santos e Silva, Arthur Gustavo Moreira Santos, Uallas Henrique de Oliveira de Brito |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Materials Research, Vol 23, Iss 4 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1516-1439 1980-5373 |
| DOI: | 10.1590/1980-5373-mr-2020-0074 |
| 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: | Directory of Open Access Journals |
| Externí odkaz: |
|