Saturday, December 6, 2014

[MW:22484] GTAW ASME-IX QW-256

Dear ASME experts,

Could you please explain me the GTAW as per ASME-IX , QW 256,

Closed to out chamber is given .
So exactly where we use this in GTAW , is it a special accessory to be used?
Give some reference for this Closed to out chamber.

And I guess the retainer and backing usage is almost same , am i right?

Regards
Saravanan
Regards

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