Hey guys,
I work at an independent O&G company where we often inlay Inconel 625 to 4130 valve bores. We are qualified for this process.
We often receive repair valves which require the machining of the inlay bores by .050" or so and then welding Inconel back over Inconel to get within tolerance. This is the process we need help qualifying.
We know the coupon size/configuration that we used to qualify the first process also the values and ranges qualified. Would the new coupon we send off be the same OD, Thickness, ETC. except machined and then have another Inconel pass welded to it? Or is the "repair" process included within the first WPS as it often requires more than one pass?
Any help would be appreciated.
-Tony