Issues related to weld evaluation of composite panels
Thread Content
It involves a combination weld of the nozzle and the cylinder with full penetration (both are composite plates); the base layer of the nozzle is made of 16Mn forged material with a thickness of 60 mm, followed by a 3 mm layer of stainless steel welded on top. The cylinder is made of 24+3mm composite plate; a process evaluation for welding these composite plates together has been carried out. The nozzles are coated with corrosion-resistant surfacing material. However, in the fully welded joint between the nozzle and the cylinder, the thickness on the nozzle side is not sufficient. It would be possible to use 38+3mm composite plates for welding, but it’s difficult to purchase such plates individually. I wonder how everyone handles this situation?
All these problems exist; find a way to buy it.
The process evaluation for composite panels follows the principle of evaluating the base layer first and then the overlay layer. You can actually use a 38-mm-thick plate, build up layers on it using welding rods, and then conduct the evaluation; after that, find a material certification sheet. Hehe, actually, 30 mm is sufficient – no need for 38 mm