Hello ,
Are you using fillet joint ? If you use standard weldolet penetration could be better .Gas backing form underneath the weld also helps .
On Sat, Apr 26, 2014 at 9:47 AM, 'V G Pathak' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Hello all welding experts,--
We are welding fillet of incoloy 800 stub to tube with tube OD 12.86 mm and thickness 2 mm with GTAW and 99.999% purity argon gas with correct filler wire. When we do micro exam, we find root crack and LF.
We have been unable to resolve this issue for past 3 months.
Can any one give suggestion on how to overcome this problem?
Your earliest reply shall be highly valuable.
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