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
|
|
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
This communication and any files transmitted with it contain information which is confidential and which may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s), please note that any disclosure, copying, printing or use whatsoever of this communication or the information contained in it is strictly prohibited. If you have received this communication in error, please notify us by e-mail or by telephone as above and then delete the e-mail together with any copies of it. ESAB does not accept liability for the integrity of this message or for any changes, which may occur in transmission due to network, machine or software failure or manufacture or operator error. Although this communication and any files transmitted with it are believed to be free of any virus or any other defect which might affect any computer or IT system into which they are received and opened, it is the responsibility of the recipient to ensure that they are virus free and no responsibility will be accepted by ESAB for any loss or damage arising in any way from receipt or use thereof. --~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---
No comments:
Post a Comment