welder or welding operator shall be affected when one of the following
occurs: . . . (b) When there is a specific reason to question his
ability to make welds that meet the specification, the qualifications
that support the welding he is doing shall be revoked. All other
qualifications not questioned remain in effect."
ASME does not address what the "specific reason" is; that is does not
quantify size, shape, or number of discontinuities that will result in
loss of the welders qualification. This is usually described in
contract documents or, often, a contract will state that it is up to the
discretion of the customers inspector. Sometimes a company will have a
failure rate or some other guidance in their quality manual as to when
the welder will be disqualified or have to have additional training.
I will let others address how the EN Code(s) or other Codes address
this.
One should be cognizant of the fact that even the best welder may have
an occasional bad weld and that other factors may affect the ability to
make a good weld. Most contracts, I've seen have a second chance clause
in that if a weld is rejected, the next two will be inspected/evaluated
and failure with either of those will result in 100% inspection and/or
disqualification.
John
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of Shaunak
Upadhyay
Sent: Thursday, February 24, 2011 5:02 AM
To: Materials & Welding
Subject: [MW:9988] Disqualified Welders
Dear All,
If one 6G Qualified welder welds one joint and after rt test that
joint full repair, than can we disqualify that welder?
Is there any code or specification for this issue.
Please give your suggestion.
Regards,
Shaunak Upadhyay.
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