Woven fiber preform for producing composite part, in particular turbine blade

• Main Authors: COUPE, DOMINIQUE MARIE CLAUDE, DAMBRINE BRUNO JACQUES GERARD, MARCHAL YANN DIDIER SIMON, COLLOT, MARIE-ANTOINE
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; LOOMS; MACHINES OR ENGINES IN GENERAL; MAKING GRANULES OR PREFORMS; MECHANICAL ENGINEERING; METHODS OF WEAVING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; STEAM ENGINES; TEXTILES; TRANSPORTING; WEAPONS; WEAVING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WOVEN FABRICS

A one-piece fibrous preform (100) obtained by three-dimensional weaving is disclosed, the preform comprising a first skin (110), a second skin (120) and a longitudinal reinforcing portion (130) connecting the skins, the portion forming a reinforcing element in a longitudinal direction (L). The preform has an intermediate portion in the longitudinal direction (L) between two end portions. The longitudinal reinforcement portion comprises, in an intermediate portion, a plurality of longitudinal non-woven longitudinal threads (c5-c12) held together by a plurality of first transverse threads (t4) from the first skin (110) and a plurality of second transverse threads (t5) from the second skin (120). In the end portion, the longitudinal threads of the longitudinal reinforcement portion are woven with the transverse threads. 公开了一种通过三维编织获得的单件纤维预制件(100)，该预制件包括第一表皮(110)、第二表皮(120)和连接各表皮的纵向加强部分(130)，该部分沿纵向方向(L)形成加强元件。预制件具有在两个端部部分之间沿纵向方向(L)的中间部分。纵向加强部分在中间部分包括多个纵向非编织纵向线(c5-c12)，它们被来自第一表皮(110)的多根第一横向线(t4)和来自第二表皮(120)的多根第二横向线