RE: [MW:4894] repair of toe crak

The options are removal by grinding followed by PT or MPI. PT if properly used can give best results. Keep doing the grinding followed by test till there are no recordable indications. UT might not be the best method for cracks.

 

With Regards,

V.Vaidyanathan
Welding Inspection Engineer │ Worley Parsons│Kuwait
( +965 238 61657 │ Fax. +965 2398 1695
www.worleyparsons.com

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ali asghari
Sent: Tuesday, April 20, 2010 9:34 AM
To: materials-welding@googlegroups.com
Subject: [MW:4892] repair of toe crak

 

Dear All

in my project, after plate girder fabrication( with thickness of 35 to 50) in Tjoint that have double bevel joint, longitudinal crack in parent metal( that discontinuted) detected by MT in 6M length.

with grinding of a small part , it finded that the depth of crack is approximately 7mm.

now how can i remove this doubt that may be there are branches of crack in lower depth or close the root of double bevel?( how can i trust to UT to detectability?)

does anyone have procedure or recommendation about removing and repair of them?

regards

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