Arc voltage for GTAW process
Arc voltage for GTAW process
(OP)
Hello all,
I am welding engineer and currently I am working as surveyor for an inspection company. Looking on some WPSs and WPQRs I found 20-22V arc voltage for GTAW process (2.5%Cr and 9%Cr base materials). According to my experience this is a range to high for GTAW. Please let me know your opinion.
Regards,
ufo
I am welding engineer and currently I am working as surveyor for an inspection company. Looking on some WPSs and WPQRs I found 20-22V arc voltage for GTAW process (2.5%Cr and 9%Cr base materials). According to my experience this is a range to high for GTAW. Please let me know your opinion.
Regards,
ufo





RE: Arc voltage for GTAW process
RE: Arc voltage for GTAW process
Not that you asked, but I find AC usually is higher and still higher (19-21V) yet if helium is used for welding aluminum.
20 to 22V using argon and DCEN sounds high unless they are using large diameter electrodes.
Best regards - Al
RE: Arc voltage for GTAW process