a single detail i had to repair it was 16mm thick. prepared it to double V groove around 100deg. with 1,5mm root face and no gap, cleaned with soap and water.
i was unsure about our TIG if it can handle it since its only 200A but few runs without filler was enough to preheat. 2 passes per side, first i started with the root pass on both sides at 200A, waited a few minutes checked the weld for cracks, then at 160A (it was still hot) the second pass halfway on one side and same on the other side, then again waiting few minutes for the temperature to drop and fill the rest. but 2,4mm filler was hard to keep feeding.
didnt really knew what i was doing as it was the first time on something that thick but i like the final result
i was unsure about our TIG if it can handle it since its only 200A but few runs without filler was enough to preheat. 2 passes per side, first i started with the root pass on both sides at 200A, waited a few minutes checked the weld for cracks, then at 160A (it was still hot) the second pass halfway on one side and same on the other side, then again waiting few minutes for the temperature to drop and fill the rest. but 2,4mm filler was hard to keep feeding.
didnt really knew what i was doing as it was the first time on something that thick but i like the final result