When we test electrodes / weld metal properties / here, we interpret interpass temp. as the max. temp. when a new pass can be started. We do continue with the next electrode directly after the first regardless of temp. I.e. we measure interpass temp before starting the next weld bead. However, we do not weld titanium, so I understand there may be a problem in that case.
Claes Gillenius
Development Engineer, MMA. (Spec. stainless and non Fe-alloys)
Direct tel: +46 (0)31 509315
Mobile +46 (0)707532012
Company ESAB AB
Address Box 8004, 402 77 Gothenburg, Sweden
Lindholmsallén 9
Company reg number 556005-7738
| kataiah@bilfal.com Sent by: materials-welding@googlegroups.com 2008-12-15 04:06
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Dear Friends,
I have a confusion regarding the measurement of interpass temperature.During GTAW welding of Titanium material, interpass temperature should be maintained very low to avoid oxidation (Blue color formation). When weld length is more, the moment welder starts welding interpass temperature exceeds the specified limit. Before welding with next rod, interpass temp will be higher than specified but generally we won't stop welding until total run or weld length is completed.
Please advise me when to measure interpass temperature.
Regards
P.K
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