Use Double operator GTAW ie two welders welding from either side simultaneously in 3G, pulling same weld puddle with Square butt joint, 5 mm gap.
Welders to practice first in 1 M long test plate. Use 2 or -2.4dia filler. 80/120 amps.
Provide stiffnars to act gap closing . 1stStriking arc welder to add filler in joint gap second welder to operate at lower current level and add filler as and when required moving arc behind 3-4 mm from first welder. His arc also provide argon shielding to weld
On Thu, Jan 21, 2021, 08:43 Shahil Saini <sainishahil98@gmail.com> wrote:
Hello everyone,--How to overcome the distortion in pressure vessel of material SS 304L?, having thickness 8mm of two dish-end and shell having thickness of 6 mm, I am attaching photographs of vessel for your reference,
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