Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus
    1.
    发明授权
    Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus 有权
    用于制造具有刚性/可延展的SMP装置的复合加强件的方法和系统

    公开(公告)号:US08815145B2

    公开(公告)日:2014-08-26

    申请号:US13238695

    申请日:2011-09-21

    IPC分类号: B29C51/10

    摘要: A method and apparatus for fabricating a composite part with a shape memory polymer (SMP) apparatus usable as both a rigid tool and as a bladder. The SMP apparatus may be heated until malleable, shaped, and then cooled in a desired rigid tool configuration. The composite material may be applied onto the SMP apparatus and then placed into a rigid external mold and heated to composite cure temperatures at which the SMP apparatus is malleable. In some embodiments, an impermeable sheet of material may also be placed over portions of the composite material to compress it against the SMP apparatus. A pressure differential may be induced which urges the SMP apparatus to compress the composite material against the rigid external mold. When the composite material is cured, the pressure differential may be equalized and/or reversed and the malleable SMP apparatus may be removed from within the composite part.

    摘要翻译: 一种用于制造具有可用作刚性工具和膀胱的形状记忆聚合物(SMP)装置的复合部件的方法和装置。 可以将SMP装置加热直到有韧性,成型,然后以期望的刚性工具构型冷却。 可以将复合材料施加到SMP装置上,然后将其放置在刚性外部模具中并加热至复合固化温度,在该温度下SMP装置可延展。 在一些实施例中,不透水的材料片材也可放置在复合材料的部分上以将其压靠SMP装置。 可以引起压力差,其推动SMP装置压缩复合材料抵抗刚性外部模具。 当复合材料固化时,压差可以相等和/或反转,并且可延展的SMP装置可以从复合部件内移除。

    RECONFIGURABLE SHAPE MEMORY POLYMER SUPPORT TOOLING
    8.
    发明申请
    RECONFIGURABLE SHAPE MEMORY POLYMER SUPPORT TOOLING 有权
    可重构形状记忆聚合物支持工具

    公开(公告)号:US20120119411A1

    公开(公告)日:2012-05-17

    申请号:US13288393

    申请日:2011-11-03

    IPC分类号: B29C33/38 F16M13/00

    CPC分类号: B29C33/485 B29C33/046

    摘要: A support apparatus and method for providing structural support to a shape memory polymer (SMP) apparatus during fabrication of composite parts. The support apparatus may comprise an adjustable, rigid structural member and a plurality of SMP support components transitionable between a rigid and malleable state and fixed to an outer surface of the rigid structural member. The rigid structural member may extend in at least one cross-sectional dimension toward the SMP apparatus, pressing the SMP support components, in their malleable state, against the SMP apparatus. The SMP support components may thereby conform to a first surface of the SMP apparatus, then return to their rigid state while pressed against the SMP apparatus, thus providing a rigid load path between the SMP apparatus and the rigid structural member. Then composite material may be applied to a second surface of the SMP apparatus, opposite of the first surface.

    摘要翻译: 一种用于在制造复合部件期间向形状记忆聚合物(SMP)装置提供结构支撑的支撑装置和方法。 支撑装置可以包括可调节的刚性结构构件和多个SMP支撑构件,其可在刚性和可延展状态之间转变并且固定到刚性结构构件的外表面。 刚性结构构件可以以至少一个横截面尺寸朝向SMP装置延伸,在其可延展状态下将SMP支撑部件按压SMP装置。 因此,SMP支撑部件可以符合SMP装置的第一表面,然后在压靠SMP装置的同时返回到其刚性状态,从而在SMP装置和刚性结构件之间提供刚性的载荷路径。 然后复合材料可以施加到与第一表面相对的SMP装置的第二表面上。