公开(公告)号：US09120246B2

公开(公告)日：2015-09-01

申请号：US13782127

申请日：2013-03-01

Applicant: Bell Helicopter Textron Inc.

Inventor： Paul K. Oldroyd ,  James D. Hethcock, Jr. ,  David B. McNeill

IPC: B29C33/04 ,  B29C43/02 ,  B29C53/82 ,  B32B3/12 ,  B29C33/02 ,  B29C33/76 ,  B29C65/00 ,  B29C70/34 ,  B29C33/48 ,  B29D99/00 ,  B31D3/02 ,  B29C43/32 ,  B29L31/60 ,  B29C35/04

CPC classification number: B29C33/02 ,  B29C33/046 ,  B29C33/485 ,  B29C33/76 ,  B29C35/045 ,  B29C53/821 ,  B29C53/824 ,  B29C66/8284 ,  B29C70/347 ,  B29C2035/046 ,  B29C2043/3261 ,  B29D99/0089 ,  B29L2031/608 ,  B31D3/0223 ,  B32B3/12 ,  B32B2305/024

Abstract: A method of making a composite core can include configuring a plurality of mandrels to have a desired thermal expansion characteristic, placing a composite material around each mandrel, placing the plurality of mandrels in a tool, the tool being configured to constrain the plurality of mandrels as the mandrels experience a thermal expansion, heating the mandrels so that the mandrels thermally expand, thereby applying a pressure to the composite material during a cure cycle, and then cooling and separating the mandrels from the composite core. The mandrel is configured as an internal form for making a tube member of a composite core.

Abstract translation: 制造复合芯的方法可以包括配置多个心轴以具有期望的热膨胀特性，将复合材料放置在每个心轴周围，将多个心轴放置在工具中，该工具被配置为将多个心轴约束为 心轴经历热膨胀，加热心轴使得心轴热膨胀，从而在固化循环期间对复合材料施加压力，然后冷却并将复合芯分离。 心轴被构造成用于制造复合芯的管构件的内部形式。

公开(公告)号：US20140246141A1

公开(公告)日：2014-09-04

申请号：US13782127

申请日：2013-03-01

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Paul K. Oldroyd ,  James D. Hethcock, JR. ,  David B. McNeill

IPC: B29C33/02

CPC classification number: B29C33/02 ,  B29C33/046 ,  B29C33/485 ,  B29C33/76 ,  B29C35/045 ,  B29C53/821 ,  B29C53/824 ,  B29C66/8284 ,  B29C70/347 ,  B29C2035/046 ,  B29C2043/3261 ,  B29D99/0089 ,  B29L2031/608 ,  B31D3/0223 ,  B32B3/12 ,  B32B2305/024

Abstract: A method of making a composite core can include configuring a plurality of mandrels to have a desired thermal expansion characteristic, placing a composite material around each mandrel, placing the plurality of mandrels in a tool, the tool being configured to constrain the plurality of mandrels as the mandrels experience a thermal expansion, heating the mandrels so that the mandrels thermally expand, thereby applying a pressure to the composite material during a cure cycle, and then cooling and separating the mandrels from the composite core. The mandrel is configured as an internal form for making a tube member of a composite core.

Abstract translation: 制造复合芯的方法可以包括配置多个心轴以具有期望的热膨胀特性，将复合材料放置在每个心轴周围，将多个心轴放置在工具中，该工具被配置为将多个心轴约束为 心轴经历热膨胀，加热心轴使得心轴热膨胀，从而在固化循环期间对复合材料施加压力，然后冷却并将复合芯分离。 心轴被构造成用于制造复合芯的管构件的内部形式。