For laser welds in thick section steel, the main cause of solidification cracking is the weld profile shape. The high depth to width ratio of laser welds causes restraint and means that high thermal stress acts across the weld where the solidification fronts meet, causing centreline cracking.
Two days later they will participate in a Rose Ceremony as the final step in their graduation process. While a rose is symbolic for many things, the School of Nursingâs Jasmine Clark says it has become a traditional event at UBC and a time-honoured tradition.
Flowers are not just reserved for female graduates. They can be worked into the decor during celebrations for male graduates as well. While it might not seem like you can go wrong with selecting flowers, some might be too formal while others might not match the decor of the ceremony or post-graduation celebration.