Representative ceramic weld backing systems

Ceramic Welding Backing | Ceramic Backing Welding| Ceramic Backing Taps

Representative ceramic weld backing systems were evaluated with representative FCAW and SAW processes to determine their efficacy to
produce second side weld contours not requiring subsequent back welding or preparation for inspection. Weldments were prepared and
evaluated for soundness, toughness, bead shape, ceramic attaching methods and ceramic neutrality. Significant weldment soundness
problems were identified for certain FCPW processes in certain positions. Changes in welding technique appear promising for control
of these problems (though at some expense in bead shape) but further development in certain instances is required. Relatively minor bead
shape problems were identified and corrected for FCAW. More significant bead shape problems were identified for submerged arc particularly in tandem applications. No other problems of potential significance were identified. Promising joint designs, parameters and techniques were identified for welding over ceramic backing. Recommendations for future development are made.

Date: 2023-04-10     hits: 482    Return