In situoptical measurement of liquid drop surface tension in gas metal arc welding
| Autor: | D J Scholl, W H Weber, D R White, S Subramaniam |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
In situ
Acoustics and Ultrasonics Chemistry business.industry Liquid drop Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Gas metal arc welding Surface tension Plasma arc welding Optics Surface-tension values visual_art Aluminium alloy visual_art.visual_art_medium Shadowgraph business |
| Zdroj: | Journal of Physics D: Applied Physics. 31:1963-1967 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/31/16/004 |
| Popis: | The surface tension of detached liquid drops in pulsed gas metal arc welding was determined in situ from the period of the prolate-oblate oscillations initiated by the detachment event. The oscillating drops were imaged by an optical shadowgraph technique utilizing laser illumination. Images obtained during the welding process were recorded with a high-speed video camera and stored for subsequent analysis. For 4047 aluminium alloy wire, surface tension values in the range 0.54-0.7 were obtained for various droplet sizes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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