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  • Users: wongweiyew
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  1. wongweiyew

    Infusion of resin at 30 poise to dry fabric tow

    Dear all, Does anyone know how of any technique of infusing a resin film with 30 poise viscosity (lowest in can go @ 250°F) to a highly compacted dry carbon tow of 24K strands? I've tried using vacuum bag at 28 in-Hg heat to 250°F and a dwell of 30 minutes but the core is dry. Will the use of...
  2. wongweiyew

    Cleanroom Requirements

    Hi Does anyone knows the spec call out for Boeing Requirements on cleanroom? I've got ISO 14664-1 & -2 as a reference cleanliness but have got no reference for boeing requirements.
  3. wongweiyew

    NDT for delamination in graphite laminated structure

    Do anyone has any research into detecting delamination in graphite laminate structure? I've tested using ultrasonic testing but the results doesn't seem promising. I've imparted a delamination in a laminate was this delamination was not detected using ultrasonic testing. The delamination was...

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