Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration
The weld pool shape created by the plasma arc interaction on a workpiece depends on many geometrical and physical parameters and on the operating conditions. Theoretical models are developed in such a way as to predict and to characterize the material. However, these models first need to be validate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-04-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/7/4/373 |
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| author | Marine Stadler Pierre Freton Jean-Jacques Gonzalez |
| author_facet | Marine Stadler Pierre Freton Jean-Jacques Gonzalez |
| author_sort | Marine Stadler |
| collection | DOAJ |
| description | The weld pool shape created by the plasma arc interaction on a workpiece depends on many geometrical and physical parameters and on the operating conditions. Theoretical models are developed in such a way as to predict and to characterize the material. However, these models first need to be validated. Experimental results are hence proposed with parametric studies. Nevertheless, the interaction time is often short and the weld pool shape evolution not presented. In this work, the experimental setup and the diagnostic methods characterizing the workpiece are presented. The weld pool shape was evaluated versus time according to several parameters such as the current intensity value, the distance between the two electrodes, the cathode tip angle or the plasma gas nature. The results show that the depth-to-width ratio alone is not enough to compare the impact of the parameters. The analysis points out the great influence of the current intensity on the increase of the width and depth compared to the influence of the value of the cathode tip angle. The rise of the arc length leads to an increase of the power through a higher arc voltage; nevertheless, for distances of three and five millimeters and a characteristic time of the welding process of one second, this parameter has a weak influence on the energy transferred. The use of helium leads to a bigger volume of the weld pool due to an increase of width and depth. |
| first_indexed | 2024-12-11T08:43:36Z |
| format | Article |
| id | doaj.art-e6e7b87091184e00be1daf62acd7406d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T08:43:36Z |
| publishDate | 2017-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e6e7b87091184e00be1daf62acd7406d2022-12-22T01:14:11ZengMDPI AGApplied Sciences2076-34172017-04-017437310.3390/app7040373app7040373Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG ConfigurationMarine Stadler0Pierre Freton1Jean-Jacques Gonzalez2LAPLACE, Université de Toulouse, CNRS, INPT, UPS 118 rte de Narbonne, 31062 Toulouse CEDEX, FranceLAPLACE, Université de Toulouse, CNRS, INPT, UPS 118 rte de Narbonne, 31062 Toulouse CEDEX, FranceLAPLACE, Université de Toulouse, CNRS, INPT, UPS 118 rte de Narbonne, 31062 Toulouse CEDEX, FranceThe weld pool shape created by the plasma arc interaction on a workpiece depends on many geometrical and physical parameters and on the operating conditions. Theoretical models are developed in such a way as to predict and to characterize the material. However, these models first need to be validated. Experimental results are hence proposed with parametric studies. Nevertheless, the interaction time is often short and the weld pool shape evolution not presented. In this work, the experimental setup and the diagnostic methods characterizing the workpiece are presented. The weld pool shape was evaluated versus time according to several parameters such as the current intensity value, the distance between the two electrodes, the cathode tip angle or the plasma gas nature. The results show that the depth-to-width ratio alone is not enough to compare the impact of the parameters. The analysis points out the great influence of the current intensity on the increase of the width and depth compared to the influence of the value of the cathode tip angle. The rise of the arc length leads to an increase of the power through a higher arc voltage; nevertheless, for distances of three and five millimeters and a characteristic time of the welding process of one second, this parameter has a weak influence on the energy transferred. The use of helium leads to a bigger volume of the weld pool due to an increase of width and depth.http://www.mdpi.com/2076-3417/7/4/373weldingweld pooltransient stateshapemetallography |
| spellingShingle | Marine Stadler Pierre Freton Jean-Jacques Gonzalez Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration Applied Sciences welding weld pool transient state shape metallography |
| title | Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration |
| title_full | Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration |
| title_fullStr | Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration |
| title_full_unstemmed | Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration |
| title_short | Influence of Welding Parameters on the Weld Pool Dimensions and Shape in a TIG Configuration |
| title_sort | influence of welding parameters on the weld pool dimensions and shape in a tig configuration |
| topic | welding weld pool transient state shape metallography |
| url | http://www.mdpi.com/2076-3417/7/4/373 |
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