Adi,
A joint gets repair - it is condemned, how much part was defective is immaterial. So, that joint should go in a welder's record as a repair joint. If you want to measure repair length / total length ratio, that is your business for guidelines only. A 2" joint is much more difficult to weld, hence, it does have more weightage. The whole joint irrespective of defect length is to be cut out and repaired.
After training and re-qualification, a welder's record starts anew. Though the old record for that job activity is still maintained in the background. For a new job activity welder selection can be based on all these previous records.
Hope this is Ok, now? But still, you must formulate your own criteria for this in line with client's requirements. In absence of any, this one can be in used, it is suitable for most job requirements as per my own experience.
Best regards,
Shashank Vagal
--- On Fri, 25/9/09, Adi N Rao <adinraos@gmail.com> wrote:
From: Adi N Rao <adinraos@gmail.com>
Subject: [MW:3312] Re: Welder reapir %
To: materials-welding@googlegroups.com
Date: Friday, 25 September, 2009, 10:26 AM
Thank Q to all If I calculate full cut out (especially for 2") The repair % is coming too much Exp: 10 joints 1 joints repair means 10%repair rate However the repair portion is very small, I have to cut the joint
Observed welder repair rate above 5%, he should be taken off the job and sent for re-training for a week.. ok After requalification his repair % calculation start from fresh or from the old ? Adi
On 9/25/09, Shashank Vagal <nach_sam@yahoo.com> wrote: | Hi, Whatever amount of repair was caused by the welder and no. of joints repaired should be attributed fully to him. Indication type etc are immaterial, it is the bad workmanship that we are considering. And indication is repairable if it is a defect (not acceptable), right? Indicates bad workmanship. Accordingly it needs to be treated. But a record can be kept of % length repaired, just for comparison. Otherwise, it is for the % repair rate per joint that a welder's record should be maintained. Just for your info, If the repair rate shows sign of exceeding 1.5%, the welding supervisor should take cognizance. If it is >3%, the welder should be warned officially. Above 5%, he should be taken off the job and sent for re-training for a week. These are the general norms in the welding world in the industry. Or, so my notes say. Shashank Vagal --- On Thu, 24/9/09, MNS <mn.senthilkumar@ymail.com> wrote:
From: MNS <mn.senthilkumar@ymail.com>
Subject: [MW:3303] Re: Welder reapir %
To: "Materials & Welding" <materials-welding@googlegroups.com>
Date: Thursday, 24 September, 2009, 5:49 PM
If it is cut and reweld, 100% repair to be considered for quality
costing; but, for welder performance, the actual repair/defect % only
to be considered - this is just a thought....
Thanks
Senthil
On Sep 24, 3:35 pm, Adi <adinr...@gmail.com> wrote:
> If joint repair came in 2" pipe, it is very difficult to identify
> repair the exact location & root repair we can't do, so the joint
> should be cut out
> My question is When we are calculating the welders repair % we have
> to consider total length of 2" is repair ? Why because we repaired the
> total length
> Is it correct please advice
>
> Adi
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