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    COMPOSITE FEEDSTOCK STRIPS FOR ADDITIVE MANUFACTURING AND METHODS OF FORMING THEREOF
    3.
    发明申请
    COMPOSITE FEEDSTOCK STRIPS FOR ADDITIVE MANUFACTURING AND METHODS OF FORMING THEREOF 审中-公开
    用于添加剂制造的复合饲料条及其形成方法

    公开(公告)号：US20170057181A1

    公开(公告)日：2017-03-02

    申请号：US15051285

    申请日：2016-02-23

    Applicant: The Boeing Company

    Inventor： John C. Waldrop, III ,  Matthew S. Thompson ,  Michael W. Hayes ,  Stephen R. Heinz

    IPC: B29C70/30 ,  B29C70/02 ,  B29B11/02 ,  B29C47/02 ,  B29C70/08 ,  B29C67/00 ,  B29C47/00

    CPC classification number: B29C70/30 ,  B29B11/02 ,  B29C48/08 ,  B29C48/154 ,  B29C64/106 ,  B29C64/141 ,  B29C70/021 ,  B29C70/08 ,  B29C70/20 ,  B29C70/386 ,  B29K2105/08 ,  B29K2105/16 ,  B29K2995/0077 ,  B33Y70/00

    Abstract: Provided are composite feedstock strips for additive manufacturing and methods of forming such strips. A composite feedstock strip may include continuous unidirectional fibers extending parallel to each other and to the principal axis of the strip. This fiber continuity yields superior mechanical properties, such as the tensile strength along strip's principal axis. Composite feedstock strips may be fabricated by slitting a composite laminate in a direction parallel to the fibers. In some embodiments, the cross-sectional shape of the slit strips may be changed by reattributing material at least on the surface of the strips and/or by coating the slit strips with another material. This cross-sectional shape change may be performed without disturbing the continuous fibers within the strips. The cross-sectional distribution of fibers within the strips may be uneven with higher concentration of fibers near the principal axis of the strips, for example, to assist with additive manufacturing.

    Abstract translation: 提供用于添加剂制造的复合原料条和形成这种条的方法。 复合原料条可以包括彼此平行延伸并连接到条的主轴的连续单向纤维。 这种纤维连续性产生了优异的机械性能，例如沿钢带主轴的拉伸强度。 可以通过在平行于纤维的方向上切割复合层压板来制造复合原料带。 在一些实施例中，狭缝条的横截面形状可以通过至少在条带的表面上重新赋予材料和/或通过用另一种材料涂覆狭缝条来改变。 可以在不干扰条带内的连续纤维的情况下执行该横截面形状变化。 条带内的纤维的横截面分布可能是不均匀的，较高浓度的纤维在条的主轴附近，例如有助于添加剂制造。

    COMPOSITE FEEDSTOCK STRIPS FOR ADDITIVE MANUFACTURING AND METHODS OF FORMING THEREOF
    4.
    发明申请
    COMPOSITE FEEDSTOCK STRIPS FOR ADDITIVE MANUFACTURING AND METHODS OF FORMING THEREOF 审中-公开

    公开(公告)号：US20200016845A1

    公开(公告)日：2020-01-16

    申请号：US16584129

    申请日：2019-09-26

    Applicant: The Boeing Company

    Inventor： John C. Waldrop, III ,  Matthew S. Thompson ,  Michael W. Hayes ,  Stephen R. Heinz

    IPC: B29C70/30 ,  B29C70/20 ,  B29C70/38 ,  B29C64/141 ,  B29C64/106 ,  B29C48/08 ,  B29C48/154 ,  B29B11/02 ,  B29C70/02 ,  B29C70/08

    Abstract: Provided are composite feedstock strips for additive manufacturing and methods of forming such strips. A composite feedstock strip may include continuous unidirectional fibers extending parallel to each other and to the principal axis of the strip. This fiber continuity yields superior mechanical properties, such as the tensile strength along strip's principal axis. Composite feedstock strips may be fabricated by slitting a composite laminate in a direction parallel to the fibers. In some embodiments, the cross-sectional shape of the slit strips may be changed by reattributing material at least on the surface of the strips and/or by coating the slit strips with another material. This cross-sectional shape change may be performed without disturbing the continuous fibers within the strips. The cross-sectional distribution of fibers within the strips may be uneven with higher concentration of fibers near the principal axis of the strips, for example, to assist with additive manufacturing.

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