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PQR-WPS overlay

PQR-WPS overlay

PQR-WPS overlay

(OP)

Dear all,

I have a GTAW semi-autom. WPS-PQR for overlay ER308L-ER309L on P1
Is it possible to create a new WPS for 309-316 on P1, based on the existing PQR without requalification?
Thnx! Patrick

RE: PQR-WPS overlay

You need to check the A number (QW-442) of 309-316 and compared to A number of 308L-309L. If they are the same, then you don't need requalification.

RE: PQR-WPS overlay

Re-qualification is unnecessary. The A-No for 316 is the same as 308.

RE: PQR-WPS overlay

Agreed. That however is not to say chemistry will meet your customer requirements. You may need to use a Mo bearing consumable for the first layer.

RE: PQR-WPS overlay

(OP)
thanks for the comments!

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