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.
A ribbon cutting ceremony is a public ceremony conducted to inaugurate the opening to the general public of a new building or business.ormer First Lady Laura Bush and quarterback Brett Favre attend a ribbon cutting ceremony that honors the reopening of a playground in Kiln, Mississippi destroyed by Hurricane Katrina.