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.
Graduation is the completion of all degree requirements in order to be awarded your degree and receive your printed diploma. Commencement is the symbolic ceremony at which your graduation is publically acknowledged and celebrated. Participation in the commencement ceremony does not equate to graduating.