American Welding Society Forum
I have exsisting qualified WPS and PQR as per Sec IX. .After reviewing this WPS my client wants to add Hrdness test into this.
Can I go only for Hardness test and prepare a PQR only for Hardness test .
Can I preapre a new WPS supported by two PQR earlier exisiting PQR and PQR with only hardnrss .
I don't see how one can replicate the original welding conditions if the nonessential variables such as voltage, amperage, travel speed, and interpass temperature were not recorded on the PQR.
If the nonessential variables listed above were recorded for each weld bead, then I would venture to say you could weld a coupon and measure the hardness if you client agrees to the proposition. The same welding parameters would need to be used to produce that same cooling rates.
Just my opinion.
Thanks.I have gone for a new PQR
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