Method of making a rotor yoke and rotor yoke thereof

Details Method of making a rotor yoke and rotor yoke thereof Method of making a rotor yoke and rotor yoke thereof

B - Operations, Transporting

64

C

B64C 27/32 (2006.01) B23P 15/00 (2006.01)

Patent

CA 2712638

A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.

Procédé de production d'un étrier de rotor comprenant la préparation d'une ébauche d'étrier de rotor composite durci simple face et l'usinage d'au moins une partie de l'ébauche d'étrier de rotor durci, en vue de former un étrier de rotor. Selon une forme d'exécution, le procédé comprend les étapes suivantes : préparation de l'étrier de rotor composite durci par application de couches successives d'un matériau composite polymère non durci sur un outil simple face, en une configuration permettant de produire une ébauche d'étrier de rotor non durci; disposition d'une plaque de presse semi-rigide sur une face non usinée de l'ébauche d'étrier de rotor non durci; mise en place de l'ébauche d'étrier de rotor non durci et de la plaque de presse semi-rigide à l'intérieur d'une poche à vide sur l'outil, scellée sensiblement hermétiquement; évacuation d'un volume d'air défini par la poche à vide et l'outil; et chauffage de l'ébauche de l'étrier de rotor non durci, éventuellement sous pression, de manière à former l'ébauche d'étrier de rotor composite durci.

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