Monday, October 21, 2013

Re: [MW:19007] Welder Repair Percentage Calculation

Yes it is OK, you calculate based only on the evaluated joints which are a representative sample of the whole lot.
Regards,
Paulo

On Thursday, October 17, 2013 2:28:21 AM UTC-4, Sam wrote:
also i want to add one more doubt. generally we are taking only NDT taken joints in calculation. if welder did 100 joints but RT requirement is only 10%. so we took 10 joint RT. and suppose we have 2 joint repair in those RT joints than %repair = 2/10 * 100 = 20 %. we do not calculate other 90 joints.

is it OK ?

regards,


On Sun, Oct 13, 2013 at 6:52 AM, Richard robes <mech.pr...@gmail.com> wrote:
Dear Gents,

I have one doubt regarding welder repair percentage rate calculation.

For one of welder he have done weld in 10" and 6". For 10" his repair percentage is 3 and for 6" his percentage is 2. For project its mentioned repair percentage for no. of joints welded shall not be more than 5 Percentage.

So if we add up his repair percentages it comes up to 3+2 = 5, but if we add up total no. of joints ie 10" and 6 " and then take total percentage repair rate come only up to 1.3 Percentage. 

Please advice which is the regular practice in doing repair calculation, whether its like adding up individual dia repair percentage or total no. of joints repair percentage?

Regards
Richard

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