Metal Spinning On Wood Latyhe - Woodworking Talk - Woodworkers Forum
 
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post #1 of 5 Old 10-13-2012, 04:10 AM Thread Starter
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Metal Spinning On Wood Latyhe

Hi All
Is there any one out there who has tried or doing metal spinning on their wood lathe (shaping sheet metal). The question I'm asking how difficult is it and what's the start up cost like ? The resson I'm asking is when I got my first shipment of bolt action pens from penn state a catalogue was sent with the goodies and it's got me thinking would it be worth doing along side the wood turning.

Huey
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post #2 of 5 Old 10-13-2012, 06:56 AM
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Do you really mean "sheet metal?" I cannot see turning that on ANY lathe.

George
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post #3 of 5 Old 10-13-2012, 07:38 AM
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There is a lot if information on metal spinning out there. It can be done on a wood lathe but only if the spindle presses in from the inboard side or the bearings are captured. The reason is a fair amount of force is applied to the metal while forcing it over the mandrel. This pushes against the lathe spindle pretty hard.
The Powermatic 3520 is an excellent lathe for this and I think I saw some metal spinning accessories on their site once. Oneway also dabbled in this but don't know if they still do. Of course Penn State Ind sells the tools and I think a tool rest. Sorby also sold some for a while.
Google metal spinning and you can find some info as well as videos on youtube.
https://www.youtube.com/watch?v=CsGVPUGMPXM
https://www.youtube.com/watch?v=YNk0tl5jbqw
https://www.youtube.com/watch?v=IkFd...eature=related
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post #4 of 5 Old 10-13-2012, 09:07 AM
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As John mentioned Penn State Industries started to sell the tool rest, tools and metal disc supplies last year.

http://www.pennstateind.com/store/metal-spinning.html

I have been looking at this and will eventually give it a try.

We should be able to make our own mandrels. Penn State sells a few.

It does not look to be too expensive to be able to give this a try.
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post #5 of 5 Old 10-13-2012, 09:10 AM
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Quote:
Originally Posted by GeorgeC View Post
Do you really mean "sheet metal?" I cannot see turning that on ANY lathe.

George
The metal is not turned per se, it is really being deformed by pressure from a special tool while the thin metal discs are being rotated by the lathe.

The pressure is the reason for John's comment about the bearings.

Metal spinning likely started on metal lathe's. A wood lathe should be able to deform the thin discs sold by Penn State.

Industrial machines can spin heads which are large and thick. Spun heads are preferred for pressure vessels.
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