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1. 发明申请

US20070120288A1 System, method, and apparatus for production-worthy, low cost composite tool fabrication 有权
标题翻译：用于生产有价值的低成本复合工具制造的系统，方法和装置
公开(公告)号：US20070120288A1
公开(公告)日：2007-05-31
申请号：US11289263
申请日：2005-11-29
申请人： Todd Ashton , Richard Batzer , Ronald Schmidt
发明人： Todd Ashton , Richard Batzer , Ronald Schmidt
IPC分类号： B29C70/36
CPC分类号： B29C70/443 , B29C33/3842 , B29C33/40
摘要： Composite tooling is fabricated with low cost dry fabrics and a neat resin instead of expensive prepregs. Dry, three-dimensional woven joint preforms are placed on a dry tool substrate and dry, 3D preforms are also placed between pre-cured egg crate-like junctions. The entire tool substrate and substrate-to-support structure joints are then resin-infused simultaneously through the use of rota-molded tooling aids, providing an additional reduction in cost. Tight control of resin content and distribution with vacuum infusion is thereby provided. This process eliminates the primary cause of structural weakness and cooling distortion, which typically occur at the attachment interface when existing methods are used. The preforms provide significantly greater pull-off strengths at interfaces than do hand-laid tie plies. Issues with tool surface durability are addressed through the use of ceramic-filled face coat.
摘要翻译：复合模具采用低成本干布和纯树脂而不是昂贵的预浸料制成。将干燥的三维织物接合预成型件放置在干燥的工具基材上并干燥，将3D预制件也放置在预固化的蛋壳状结之间。然后通过使用旋转模制工具辅助工具同时注入整个工具基板和基板到支撑结构接头，从而提供额外的成本降低。从而提供了通过真空输注对树脂含量和分布的严格控制。该过程消除了结构弱化和冷却失真的主要原因，当现有方法被使用时，这通常发生在附接界面处。预成型件在接口处提供比手工制作的粘结层显着更大的脱落强度。通过使用陶瓷填充的面漆来解决工具表面耐久性问题。

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