TIG weld on Mild Steel_WPS parameters
TIG weld on Mild Steel_WPS parameters
(OP)
Hi,
I have an old wps which I am trying to correct. It's for TIG welding of 1/2" inch thick plates with V-butt joint in flat position. It states 6 passes with 3 layers(1-root, 2&3-2nd layer and 4,5,&6-3rd layer). It specifies following parameters for all passes with 3/32" filler diameter.
Voltage : 20-21 V
Current : 100-160 A
Welding speed : 2.5 in/min
I guess only the root pass should be with TIG and the rest with MIG. The current range for TIG should be higher than above and also for higher passes, around Please let me know if I am right on this one and what should be these values. Also, what should be the interpass temperature requirements?
Thanks
Pranav
I have an old wps which I am trying to correct. It's for TIG welding of 1/2" inch thick plates with V-butt joint in flat position. It states 6 passes with 3 layers(1-root, 2&3-2nd layer and 4,5,&6-3rd layer). It specifies following parameters for all passes with 3/32" filler diameter.
Voltage : 20-21 V
Current : 100-160 A
Welding speed : 2.5 in/min
I guess only the root pass should be with TIG and the rest with MIG. The current range for TIG should be higher than above and also for higher passes, around Please let me know if I am right on this one and what should be these values. Also, what should be the interpass temperature requirements?
Thanks
Pranav
RE: TIG weld on Mild Steel_WPS parameters
"What code are you working with?"
Best regards - Al
RE: TIG weld on Mild Steel_WPS parameters
RE: TIG weld on Mild Steel_WPS parameters
RE: TIG weld on Mild Steel_WPS parameters
In this case, is it advisable to use TIG on all passes? Also, what about other parameters? Does the range sound good for current, speed and volts for all passes?
RE: TIG weld on Mild Steel_WPS parameters
Without a supporting PQR, the WPS is unsupported and is not valid for structural welding.
If there is a PQR, I would question the voltage. The voltage sounds very high for GTAW with DCEN and Argon shielding gas. If the parameters are questionable, the entire PQR is suspect.
Best regards - Al
RE: TIG weld on Mild Steel_WPS parameters
RE: TIG weld on Mild Steel_WPS parameters
RE: TIG weld on Mild Steel_WPS parameters
RE: TIG weld on Mild Steel_WPS parameters