Disqualified Welders

[Shaunak Upadhyay]

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.

[John Henning]

ASME Section IX states in QW-322.1: "The performance qualification of a
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

Dear All,

Please give your suggestion.

Regards,
Shaunak Upadhyay.

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[Suresh]

No...

He will not disqualified untill he cross the perecentaage limit of
rejection as per project spec or code ...

Please refer related documents ...

I think he should able to do 2 weld joints W.r.t penalty....

Suresh

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> w.r.t. applicable code/standard/contract documents.
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Thanks & Best Regards,

Suresh

Mobile No: 91-92 92 905 905

[Karthik]

HI, NO NEED TO DISQUALIFY.A welder will be disqualified/requalified if he is not weld any production welding for a six months period.if he is not welded during six monhs,he need to be requalified.But in your case it is happen sometimes in many companies.you can repair with the same welder or some other qualified welder. Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Thu, 2/24/11, Shaunak Upadhyay <shanup...@gmail.com> wrote:

From: Shaunak Upadhyay <shanup...@gmail.com> Subject: [MW:9988] Disqualified Welders

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[Muhammed Ibrahim PK]

Hi,

 

Check the other joints also. If a skilled experienced welder makes repair joint, there may be some specific reason.

Check the electrode is properly baked, joint configuration is accessible to welder or batch of that electrode have any manufacturing deffect, or the physical condition of the welder was good or not.

 

If the reasons are not the above monitor the other joints also. Then you can decide to send him for requalification/training.

 

Thanks & Regards
Muhammed Ibrahim PK

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[Arun Das]

We have to check the repair rates welded by the welder,how many repairs on total welded joints by the welder on that project, just because of one jonit we cannot conclude.Normally percentage of repair by the welders will be recorded on projects.Before taking a decision verify the history.Then we have to verify as mentioned by Mr.Ibrahim.

 

regards,
 

Arun S Das

 

---

From: Muhammed Ibrahim PK <ibra...@gmail.com>
To: material...@googlegroups.com
Sent: Sun, 6 March, 2011 9:45:29 AM
Subject: Re: [MW:10164] Disqualified Welders

[srinivasan muthukrishnan]

Hi ,

check the other joint also means different  fitters( crew) and fit up  also & make sure he have secure protection also , we cannot conclude one joint , normally after his qualification first three joint production weld joints should be passed  in radiography & make sure his technique

Regards,

balaji

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From: Arun Das <indh...@yahoo.co.in>
To: material...@googlegroups.com
Sent: Wednesday, 9 March 2011 3:49 PM
Subject: Re: [MW:10239] Disqualified Welders