FORMATION OF COMPOSITE FEATURES USING STEERED DISCONTINUOUS FIBER PREPREG

• Main Authors: MICHAEL J GRAVES, DEREK P VETTER, KENNETH H GRIESS
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2019
• Subjects: MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a method and apparatus for fabricating composite features of laminates which provide increased control over feature thickness and/or fiber orientation in local areas of a laminate structure, such as in tight contours and/or within transitions in laminate thickness.SOLUTION: A method of forming a composite feature 30 having discontinuous reinforcing fibers, comprises: fabricating a plurality of resin infused fiber segments 32 each having unidirectional reinforcing fibers 25; arranging the resin infused fiber segments on a substrate 34; and arranging the resin infused fiber segments such that the reinforcing fibers of the resin infused fiber segments disposed on the substrate are substantially aligned with a desired reference direction.SELECTED DRAWING: Figure 1 【課題】タイトな輪郭内及び／又はラミネートの厚さの移行部内などの、ラミネート構造体の局所領域において特徴部の厚さ及び／又は繊維方向に対する制御を増加させる、ラミネートの複合特徴部を製造するための方法と装置を提供する。【解決手段】不連続強化繊維を有する複合特徴部３０を形成する方法であって、各々が一方向性強化繊維２５を有する複数の樹脂注入繊維セグメント３２を製造すること、前記樹脂注入繊維セグメントを基板３４上に配置すること、及び前記基板上に配置された樹脂注入繊維セグメントの前記強化繊維が、所望の参照方向に対して実質的に整列されるように、前記樹脂注入繊維セグメントを配列すること、を含む方法。【選択図】図１