Welder Red Seal · Question
When adding filler metal during manual GTAW, where should the welder keep the hot tip of the filler rod when not adding it to the puddle?
The hot tip of the filler rod will oxidize rapidly if exposed to the atmosphere. To prevent this contamination from being introduced into the weld, the rod tip
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Question: When adding filler metal during manual GTAW, where should the welder keep the hot tip of the filler rod when not adding it to the puddle?
Answer options:
- Completely removed from the welding area to let it cool
- Dipped into the middle of the molten weld pool continuously ✅ Within the protective shielding gas envelope
- Touching the tungsten electrode to preheat it
Correct answer: Within the protective shielding gas envelope
Explanation: The hot tip of the filler rod will oxidize rapidly if exposed to the atmosphere. To prevent this contamination from being introduced into the weld, the rod tip must always be kept within the protective column of shielding gas, even when it is not being actively dipped into the puddle.
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