The shrouding is fitted over the blade, the tenon is then either riveted with 4 or 5 blows or welded. Care must be taken either method of fixing as it can lead to crack formation. Once the shrouding is fitted the surveyor may request a pull off test. The pull is determined by calculation and governed by the expected centrifugal stress on the shroud during normal operations.
Centenary Shrouding
For blade batches where the centrifugal stress on the shroud of very large LP blades is significant, then centenary shrouding is employed.
