ISOMANDREL, CURE SEQUENCE, CARBON FIBER/EPOXY PREPREG

The isomandrel on which this carbon fiber/epoxy prepreg is wound is super thermally conductive. It is 3.0" O.D. X 64.0" L.O.A. The wall stock of the filament wound tube is 0.5" The material is carbon fiber/epoxy prepreg. The energy required to heat this HPTE mandrel is provided by the copper tube, water cooled induction coil seen near the headstock. Thermal energy produced by the coil is very localized. The Isomandrel, through two phase heat transfer, distributes this localized energy at high speed and with extreme uniformity throughout the Isomandrel surface causing the resin to cure very rapidly with and with high uniformity.

Category:

Science & Technology

Tags:

• Isomandrel
• mandrel
• filament winding
• thermoset composite
• induction heating
• Acrolab
• isobar
• composite curing

[MOLRobocop]

Pretty slick operation. You get much off-gassing? Also, I can hear Brad in the background.

[AcrolabLTD]

@MOLRobocop The outgassing was very limited and assumed to be primarily water vapor.

[Acrolab1]

Dear YoungJim409 - The part you are seeing is test sample made from a Pre-preg Carbon resin. We are demonstrating how the ISOMANDREL "which is patented", impacts filament widing using induction. There is more information from Acrolab on the isomandrel on SLIDESHARE. - Regards, Acrolab1

[YoungJim409]

This is a fascinating process. What is the part for? (I mean, if the answer isn't proprietary.)

[datzfast]

looks like a drive shaft carbon fiber

[Acrolab1]

@corotor12345 the answer is yes to your first three questions and for your final question it is used to more effectively manufacture products such as pipes or tubes for many applications.

[corotor12345]

@Acrolab1

So, in other words... you're enhancing the curing process? Is this carbon fiber? And do you want to mold it into a tube? Or what's the point... are these filaments going to be used to fabricate a woven sheet?

[Acrolab1]

@corotor12345 What you are seeing is a heatpipe/thermosyphon augmented mandrel to improve cure quality and to reduce cure time in the thermoset pipe and tube filament winding process.

[corotor12345]

This all looks pretty cool, but what is it exactly?

[Ambrellinduction]

Very nice! Excellent combination of technology between Acrolab, Ameritherm and McClean Anderson!