Characterization of welding arc and weld pool formation in vacuum gas hollow tungsten arc welding
| Autor: | Suck-Joo Na, Dae Won Cho, Seong-kuk Lee |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Physics::Instrumentation and Detectors Gas tungsten arc welding Metallurgy Shielding gas Metals and Alloys Shielded metal arc welding Industrial and Manufacturing Engineering Arc blow Submerged arc welding Computer Science Applications Gas metal arc welding law.invention Plasma arc welding law Modeling and Simulation Ceramics and Composites Physics::Accelerator Physics Arc welding |
| Zdroj: | Journal of Materials Processing Technology. 213:143-152 |
| ISSN: | 0924-0136 |
| DOI: | 10.1016/j.jmatprotec.2012.09.024 |
| Popis: | An experimental method is suggested to obtain the effective arc radii for various welding conditions in vacuum gas hollow tungsten arc welding. The irradiance distribution of welding arc next above the anode workpiece is obtained by applying Abel inversion algorithm to the CCD arc image, and then used to determine the distribution of arc heat flux, arc pressure and current density from the physical relations of arc irradiance, temperature and current density in gas tungsten arc welding. The resultant arc models are then adopted to simulate the gas hollow tungsten arc welding process for various gas flow rates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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