Mandrel for manufacturing a part of revolution in composite material

Abstract

Mandrel for manufacturing a part of revolution in composite material Mandrel (10) for manufacturing a part of revolution in composite material, comprising a forming support (Sf) movable in a radial direction (DR1, DR2) and having a symmetry of revolution around a longitudinal axis (A10).The forming support (Sf) comprising a first pair of angular sectors (11, 12) opposed to each other with respect to the longitudinal axis (A10) of the mandrel and a second pair of angular sectors (21, 22) opposed to each other with respect to the longitudinal axis (A10), and a first actuation mechanism configured to move the angular sectors (11, 12) of the first pair of angular sectors between a deployment position and a retraction position, a second actuation mechanism configured to move the angular sectors (21, 22) of the second pair of angular sectors between a deployment position and a retraction position.The first and second actuation mechanisms each comprise a threaded rod (100, 200) extending along the longitudinal axis (A10), at least one carriage (111, 112) cooperating with the threaded rod (100, 200) and configured to slide along the longitudinal axis (A10) when the threaded rod (100, 200) is rotated, and at least one radial translation means connected to each angular sector of one of the first (11, 12) or second (21, 22) pairs of angular sectors, said radial translation means being connected with the carriage (111, 112) and configured to radially translate the angular sector when the threaded rod (100, 200) is rotated. Figure for the abstract: Fig. 1.