Patent ID: 7390170

Claim:
A device for assembling together two annular flanges of a turbomachine rotor or stator, the device comprising a fastener passing through orifices in said annular flanges, wherein a first of the annular flanges is of a festooned or crenellated shape and has notches formed between solid portions including said orifices, and wherein the second annular flange comprises a keying mechanism that cooperates with the first annular flange during mounting of the annular flanges and configured to provide an indication of whether or not an angular position of the first and second annular flanges relative to each other is correct, said keying mechanism comprising at least one projecting element formed on a face of the second annular flange facing towards the first annular flange, said at least one projecting element being configured to engage in a notch of the first annular flange when said angular position of the two annular flanges relative to each other is correct.