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Flowforming.
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Previously:
https://www.homemadetools.net/forum/...211#post130552
https://www.homemadetools.net/forum/...942#post133742
You can do that on a mini-lathe, too.
Attachment 30317
What sort of wall thickness were you able to achieve?Quote:
Originally Posted by jdurand
And was that for a particular purpose or were you just experimenting?
I’m thinking the coolant was not used for the video?
Seemed like a lot of heat building up.
I don't remember the wall thickness, I was making a punch for some soft material. So, the ID was the only thing I cared about.
I had to do some experimenting after Jon posted those previous videos of the copper forming. This is just 3/4" copper tube down to about 1/2"
Attachment 30346
I just ground a piece of HS Steel cutting tool to a rounded profile. I was not able to polish the surface as much as necessary to get a really nice finish. You notice the surface is a bit rough, I feel like if I spent the time polishing the tool surface, the result would be much better.
