Method for manufacturing braided preforms

Details Method for manufacturing braided preforms Method for manufacturing braided preforms

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/14 (2006.01) B29C 61/02 (2006.01) B29C 70/18 (2006.01) F01D 5/28 (2006.01) F01D 9/02 (2006.01)

Patent

CA 2707409

The present invention relates to an automatic method for manufacturing a stator or rotor blade preform for a turbine engine, comprising at least the following successive steps : a) a step for the helical braiding of a plurality of interlocked tubular braids (1), called nested braids, said step being conducted on braiding machines (2) placed in a row in a braiding direction; b) a step for flattening the nested braids (1); c) a step for stitching the nested braids (1) together in a direction perpendicular to the braiding direction; d) a step for winding the nested braids (1) on a transport mandrel (3); e) a step for cutting the nested braids (1) unwound from the transport mandrel (3), said cut being performed in a direction perpendicular to the braiding direction.

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