The fitting is gas cut and then grinded for modification work of pipeline.
On Tue, Sep 18, 2012 at 2:17 PM, muthu barathi <muthu_barathi@rediffmail.com> wrote:
You have to mention some more details for correct advice.
1. whether the bevel was made by gas cut or machining?
If gas cut used w, while gas cutting it might be opened if lamination was present.
AC will detect only surface not sub surface.
If you want to see sub surface defects then you have to go for HWDC. That also you can go up
to 3mm effectively.
On Mon, 17 Sep 2012 21:36:56 +0530 wrote
>Dear Exparts,
I have a doubt regarding MPT method.
I am going to check the lamination of plates from the bevel edges.
What MPT current mode should we use.
Is it AC or HWDC?
Please share your knowledge and code references.
--
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Thanking You.
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Biplab Pal
Welding Inspector
Biplab Pal
Welding Inspector
E-mail: biplab.mech@gmail.com
Information in this email and any attachments is confidential and intended solely for the use of the individual(s) to whom it is addressed or otherwise directed. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the Company. Finally, the recipient should check this email and any attachments for the presence of viruses. Myself accepts no liability for any damage caused by any virus transmitted by this email.
Information in this email and any attachments is confidential and intended solely for the use of the individual(s) to whom it is addressed or otherwise directed. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the Company. Finally, the recipient should check this email and any attachments for the presence of viruses. Myself accepts no liability for any damage caused by any virus transmitted by this email.
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