Printable View
Corrugated pipe extruder.
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Previously:
https://www.homemadetools.net/forum/...726#post223441
https://www.homemadetools.net/forum/...789#post220399
https://www.homemadetools.net/forum/...610#post209332
https://www.homemadetools.net/forum/...212#post207900
https://www.homemadetools.net/forum/...247#post184873
Love to see the business end of that! Is the inner mandrel "corrugated" too? or does it end up a smooth bore?
It could be that there is no inner mandrel, just a bunch of high-pressure spray nozzlesQuote:
Originally Posted by Hoosiersmoker
You can get pipe like that in both single layer ribbed inner surface and double layer smooth liner. Don't know how they do it though.
I do a lot of work in wood products and OSB. Most of the OSB you buy is made on a continuous press. Very similar in principle to this pipe extruder.
https://www.youtube.com/watch?v=BLLrhB9lI0Y
Now, that's a innovative molding technique!
Though if spraying is involved, it's not really molding, but forming. Additive yes, but still closely related work such as turning with form tools, which is subtractive.