File:TIG weld etch zone closeup.jpg
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Summary
| Description |
A closeup micrograph of a TIG weld etch zone on 6061 aluminium (pulsed at 200 amps peak current, 5 amps sustain current, 50% pulse duty cycle, AC, 65% electrode negative, pure argon shield gas). These intentionally suboptimal conditions produce an widened etch zone where the normal layer of aluminium oxide has been removed from the surface, leaving exposed metallic aluminium capable of being welded. Image is approximately 10mm across the field of view; photographed with a Wild M5Z microscope and a Konica-Minolta Dimage X1 digital camera by W.S. Yerazunis. |
| Date | 27 December 2005 (according to Exif data) |
| Source | No machine-readable source provided. Own work assumed (based on copyright claims). |
| Author | No machine-readable author provided. Dr. Crash~commonswiki assumed (based on copyright claims). |
Licensing
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:41, 4 January 2006 |  | 1,024 × 768 (778 KB) | Dr. Crash~commonswiki | A closeup micrograph of a TIG weld etch zone on 6061 aluminium (pulsed at 200 amps peak current, 5 amps sustain current, 50% pulse duty cycle, AC, 65% electrode negative, pure argon shield gas). These intentionally suboptimal conditions produce an widene |
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