高温热聚氨酯工装板,为自主直升机用碳纤维部件保持紧密的耐性_海外动态_业界资讯__复合材料信息网
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高温热聚氨酯工装板,为自主直升机用碳纤维部件保持紧密的耐性
发布日期:2018-11-02  来源:JEC  浏览次数:337
 
   接骨木航空公司已经完成了其即将到来的SH-410和SH-415 Vixen载人/可选载人直升机系统的外部燃料吊舱的原型工具,使用了来自美国Duna公司的新的最先进的工具板,黑科林斯800。
  
  在为即将进行的飞行测试做准备时,Scion需要为Vixen直升机生产线建立外部碳燃料箱,而保持精确性是关键。在直接工具应用中使用了黑色Corintho 800,一旦板被粘合、数控加工和密封,Hexcel M35-4环氧预浸料就被铺在工具上,在50 PSI/180°F的高压釜中固化16小时。
  多年来,用可供选择的工具制造低成本、高精度的原型几乎是不可能的。对于这种类型的应用程序,金属工具是笨重的,昂贵的,并且在10次中超过9次。自然的解决方案是模具板,但传统上,热膨胀的协同效率已被证明难以维持对高精度原型的必要容忍,“Scion航空公司的所有者吉姆·桑普森说。“对Scion来说,黑色Corintho 800正是这方面的最佳选择,因为它非常稳定,热膨胀系数极低,并且大大加快了我们的进程,从而节省了时间和金钱。”这确实改变了我们的工作方法,使我们在报价过程中更具竞争力。“
  
  Vixen直升机系列由无人/可选的载人变体组成,目前正在接受Scion航空公司与Safran合作进行的飞行测试,最终用作海上巡逻艇(OPV)和美国海军、美国陆军和民用的其他应用-案例。该项目自2011年以来一直在开发中,并将于2019年全面生产,并将由科学航空公司的科林堡、CO和WY的夏延地区进行。
  黑色Corintho 800是一种高温工装板,可供400°F使用,提供低CTE、高维稳定性和高导热性。它旨在生产原型,或低体积模具,是杜纳集团开发的高温工装系统的一部分,由黑色Corintho系列工装板、Dunapox黑AD 135高温环氧胶粘剂和Dunapox黑海125高温环氧密封板组成。
  

 
原文如下:
  Scion Aviation has completed prototype tooling for the external fuel pods for their upcoming SH-410 and SH-415 Vixen manned/optionally manned helicopter system, using a new state-of-the-art tooling board from Duna-USA, the Black Corintho 800.
  High-temp polyurethane tooling board to maintain tight tolerances on carbon fiber components for autonomous helicopter
  In preparation for upcoming flight tests, Scion needed to create external carbon fuel tanks for the Vixen helicopter line, and maintaining accuracy was key. The Black Corintho 800 was utilized in a direct-tool application, and once the boards were bonded, CNC machined, and sealed, Hexcel M35-4 epoxy prepreg was layed up onto the tool, and cured in an autoclave for 16 hours at 50 PSI/180°F.
  “For years, making low-cost, highly accurate prototypes with the available tooling options was next to impossible. metal tooling is heavy, expensive, and overkill 9 times out of 10 for this type of application. The natural solution is tooling board, but traditionally, the co-efficient of thermal expansion has proven to be prohibitive to maintaining the necessary tolerance for a highly-accurate prototype,” says Jim Sampson, owner of Scion Aviation. “For Scion, the Black Corintho 800 fits the sweet spot in this regard in that it is highly stable, has an ultra-low coefficient of thermal expansion, and significantly sped up our process allowing relevant savings in time and money. It has truly changed our working method and enabled us to be more competitive in our quoting process.”
  High-temp polyurethane tooling board to maintain tight tolerances on carbon fiber components for autonomous helicopter
  The Vixen helicopter line consists of unmanned/optionally manned variations, and is currently undergoing flight testing by Scion Aviation in collaboration with Safran for ultimate use as offshore patrol vessels (OPV) and other applications for the US Navy, US Army and civilian use-cases. The program has been in development since 2011, and full-scale production is slated for 2019 and will be conducted by Scion Aviation’s Fort Collins, CO and Cheyenne, WY locations.
  The Black Corintho 800 is a high-temperature tooling board, designed for use up to 400°F, offering low CTE, high dimensional stability, and high thermal conductivity. It is designed to produce prototype, or low-volume tooling, and is part of a high-temperature tooling system developed by the DUNA Group consisting of the Black Corintho series tooling boards, Dunapox Black AD 135 high-temp epoxy adhesive and the Dunapox Black Sea 125 high-temp epoxy sealer.
 
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