While welding itself I am getting crack.
Ring is holded in the positioner by means of clamps at 90 degree and we are proceeding the welding.
Regards
Suresh
On Friday, 20 November 2020 at 16:47:34 UTC+5:30 JS wrote:
Dear SureshAre you getting the crack during the deposition? Or after the job is cooled?SrinivasanOn Fri, Nov 20, 2020 at 3:16 PM SURESH <qms....@gmail.com> wrote:Dear ExpertsDuring welding of Duplex grade material we are facing crack on the weld metal as attached in the photo. Below is the detailed process for referenceProcess: PTAWBase Material: ASTM 182 Gr.F55Consumable: Stellite 12 (Powder)PreHeat: NilInterpass: <200*CCurrent: 128 to 145Gas: Ultra Pure ARGONJob Size: OD544 X ID 472 X Thk 36mmWelding: Overlay weld on OD Surface aloneWe are welding deposition thickness of 3mm. So as per this we are doing welding of 2 layer with multi pass, On welding second layer we found crack. Can anyone suggest where it is went wrong and why this crack is propagated. Please advice
In First layer- Total of 12 weld pass
In second layer- Total of 12 weld pass
Regards
Suresh
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