[MW:3526] Re: defect free weld

1. get a talent welder
2. be sure that your joint design is suitable
3. electrode selected right way
4. handling and storage of the electrode are properly done
5. base metal precleaned
6. interpass temperature is maintained
7. preheating of the electrode if it is required is done
8. humidity level is suitable
9. preheating if required
10. interpass cleaning done properly
11. inspection is done before, during and after every step
12. heat treatment after joint completion if required
13. visual and non destructive testing are selected and done properly
14. etc.
note: after you do all these precautions i can not assure you that
your joint will be free of defect but at least it will give you high
propability of getting your joint free of defect
On Oct 13, 2:09 pm, "Vaidehi Ganesan" <vaid...@igcar.gov.in> wrote:
> Dear Moderators of the group,
> Can you please post the following for the benefit of all the members?
> Thank you,
> Regards,
> Vaidehi .G
> ---------------------------------------------------------------------------­-------------------------------------------
> Hi!
> We have recently organised a course on " Weld Defects Inspection and Quality
> Assurance- WDIQA-2009" during 24-26th Aug, at Chennai. My question is: How
> to get a defect free (closer to no defect-perfect) weld ? Group members can
> try to list the precautions, procedures, etc, etc to be followed to obtain a
> defect free weld (based on their experience). If we can compile all the
> details,  it will be an useful source of information for all of us.
> Thank you,
> Best Regards,
> Vaidehi Ganesan.
> ===========================================================================­======================================
> Dr. Vaidehi Ganesan,
> Metallurgy and Materials Group,
> Indira Gandhi Centre for Atomic Reseach,
> Kalpakkam-603 102, India.
> ===========================================================================­=========================================

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