公开(公告)号：US20160303818A1

公开(公告)日：2016-10-20

申请号：US15195501

申请日：2016-06-28

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Ramesh Thiagarajan ,  Suvankar Mishra ,  Mark Chris ,  William Evans, III ,  Mike Mikel

IPC: B32B3/08 ,  B29C44/08 ,  B32B5/18 ,  B29C44/58 ,  B29C44/60 ,  B64C5/10 ,  B29C44/04 ,  B29C44/10

CPC classification number: B32B3/08 ,  B29C44/025 ,  B29C44/0415 ,  B29C44/086 ,  B29C44/10 ,  B29C44/588 ,  B29C44/60 ,  B29K2075/00 ,  B29K2105/04 ,  B29L2031/3076 ,  B32B1/00 ,  B32B5/18 ,  B32B5/245 ,  B32B5/26 ,  B32B5/28 ,  B32B7/06 ,  B32B7/12 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2266/0278 ,  B32B2305/022 ,  B32B2305/076 ,  B32B2305/10 ,  B32B2603/00 ,  B32B2605/18 ,  B64C1/068 ,  B64C3/20 ,  B64C3/24 ,  B64C5/10 ,  B64C2001/0072 ,  B64C2027/4736 ,  Y02T50/43 ,  Y10T156/10 ,  Y10T428/233 ,  Y10T428/249953 ,  Y10T428/249982

Abstract: A structure includes a skin and a foam member. The foam member has a molded contour, the mold contour being configured to provide tooled surface for the skin. When the skin is a composite skin, the foam member provides support for the skin so that the skin can be cured under heat and pressure. A method of making the foam member for a foam stiffened structure includes creating a mold having an interior cavity which resembles a desired shape the foam member. A subsequent step involves introducing a foam mixture into the mold. Next, the foam mixture is allowed to polymerize so as to expand and distribute within the cavity of the mold. The method further includes selectively controlling a density of the foam member in the mold. The foam member is at least partially cured. The foam member is assembled with a skin to produce the foam stiffened structure.

Abstract translation: 结构包括皮肤和泡沫构件。 泡沫构件具有模制轮廓，模具轮廓被配置成为皮肤提供工具表面。 当皮肤是复合皮肤时，泡沫构件为皮肤提供支撑，使得皮肤可以在热和压力下固化。 制造用于泡沫硬化结构的泡沫构件的方法包括产生具有类似于所需形状的泡沫构件的内部空腔的模具。 随后的步骤包括将泡沫混合物引入模具中。 接下来，允许泡沫混合物聚合，以便在模具的空腔内膨胀和分布。 该方法还包括选择性地控制模具中泡沫构件的密度。 泡沫构件至少部分固化。 泡沫构件与皮肤组装以产生泡沫硬化结构。

公开(公告)号：US20180141246A1

公开(公告)日：2018-05-24

申请号：US15872706

申请日：2018-01-16

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Suvankar Mishra ,  John R. McCullough ,  Mark Chris ,  Stanley B. Woychesin

IPC: B29C44/04 ,  B32B27/12 ,  B29C44/12 ,  B29C70/86 ,  B32B3/04 ,  B32B3/12 ,  B32B3/26 ,  B32B5/18 ,  B32B27/06 ,  B32B7/12 ,  B32B7/02 ,  B32B5/26 ,  B32B5/24 ,  B32B27/08

CPC classification number: B29C44/0415 ,  B29C44/128 ,  B29C70/865 ,  B32B3/04 ,  B32B3/12 ,  B32B3/263 ,  B32B5/18 ,  B32B5/245 ,  B32B5/26 ,  B32B7/02 ,  B32B7/12 ,  B32B27/065 ,  B32B27/08 ,  B32B27/12 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2307/542 ,  B32B2605/18 ,  Y02T50/43 ,  Y10T428/24149 ,  Y10T428/249953

Abstract: A composite structure includes a first face sheet, a second face sheet, and a foam member located between the first face sheet and the second face sheet. The foam member has a molded contour, the mold contour being configured to provide tooling surface for at least one of the first face sheet and the second face sheet prior to curing of the composite structure. A method of making the foam member includes creating a mold tool having an interior surface which resembles the desired outer contour of the foam member. A mixture is poured into a pour opening in the mold tool. The mixture is allowed to polymerize into a foam as the foam expands and distributes within the mold tool. Vent openings in the mold tool are selectively tailored to control the density of the foam member. The foam member is cured in the mold tool.