Wheel disc and production machine

A device configured to form at least partially a disc of a wheel comprising a rim and at least one support of at least one hub defining an axis of rotation, the device comprising, at least:

• one central zone;
• one peripheral zone partially surrounding the central zone;
• one first portion comprising at least one first layer of at least one first composite material formed by a first one-directional fibre bundle in an array and extending into the peripheral zone and into the central zone along a first axis of extension parallel to a main direction extension of the fibres of the first one-directional bundle;
• one second portion comprising at least one second layer of at least one second composite material formed by a second one-directional fibre bundle in an array and extending into the peripheral zone and into the central zone along a second axis of extension parallel to a main direction of extension of the fibres of the second one-directional bundle, the second axis of extension being different from the first axis of extension;
• and
• at least one third portion comprising at least one third layer of at least one third composite material formed by a third one-directional fibre bundle in an array and extending into the peripheral zone and into the central zone along a third axis of extension parallel to a main direction of extension of the fibres of the third one-directional bundle, the third axis of extension being different from the first axis of extension and of the second axis of extension,
• and wherein the first portion, the second portion, and the at least one third portion are superposed relative to one another at the level of the central zone defining a multidirectional stack of one-directional bundles, within which portions of the first layer, portions of the second layer, and portions of the third layer are superposed alternately.