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Reply by macatlin1

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Posted on Roasted maple -- information on process

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macatlin1

78 posts in 3949 days


#1 posted 08-08-2013 12:31 PM

Wood high temperature tooling

A few years ago we needed to make some tooling for curing composite parts at 350 degrees for 16 hours. Normally such tooling is made from steel or composite cast from a inverse tool made from a low temperature material. We didn’t have time or material to go through either process. So we made the tooling out of wood. Even though Machineries Handbook says that pine can go to 800 degrees and oak 900 degrees, our safety people said we needed testing to demonstrate that the wood wouldn’t burst into flame. We ran pine at 600 degrees for 3 hours and yes it smells and gets a beautiful color. Since we couldn’t use glue all the parts were assembled with dowels. All the wood was precooked to drive out moisture and to solidify the resin. To mould the part we vacuum bagged the tool and then put a vacuum bag over the layed up part. The part came out acceptable with only surface touch up where it picked up the wood grain through the first bag.

I wish I had known that this created desirable characteristics as I would have started my own “bakery” and retired sooner!


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