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.
Commencement. Widener University holds commencement, its formal graduation ceremonies, in May of every year. It is at commencement that diplomas are conferred to students who have successfully completed all degree requirements at Widener University. To participate in commencement, all degree candidates must follow this graduation checklist, including filling out the RSVP form.