[TheForge] Pwr hmr anvil

[Jerry Frost]

We're in agreement Walt.

If I could get the 8 7/8" dia. RR axels I could put 
together 2,000lbs worth of anvil easily. They'd only 
need a few stitch beads to assure the billet couldn't 
shift. They certainly wouldn't need to be welded solid. 
This was exactly what I originally intended to do.

I don't have them available though and welding on a 
pile of indiscriminately shaped scrap till it weighs a 
ton not only won't look good it won't work.

If I can get them, (nothing's impossible) four, 30" 
lengths will weigh around 2,076lbs. welded to a heavy 
base and cap a "close to even" load would be okay. I'm 
only talking about a 100 lb+ tup and RR axels are med C 
or even 4140 in some cases, so close to even wouldn't 
deflect one enough to cause a shear failure in my 
lifetime, if ever.

Seven lengths welded in a hexagonal bundle, weighs in 
at around 3,637lbs. not counting caps, base, etc. It'd 
be about perfect for a 300 lb hammer. Dave Mudge built 
a hammer this way after quite a bit of research into 
built up anvils.

If on the other hand we're trying to get 2,000lbs from 
say RR rail the end loading would indeed hit ONE rail 
harder than all the others every single blow, even 
through say 2" of cap plate and a die. 1080 steel under 
those conditions will fail far sooner than I want to 
repair it.

This is exactly why I was so bummed to discover the 
recycling center would no longer sell to the public, 
all I need is four, 30" lengths of the 8 7/8" RR axel 
to make my weight. It'd be SO easy.

Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

http://www.artmetalradio.com/

From: <wmullett at bright.net>


>I can't believe that it is important to join your 
>axels vertically.  Mostly what you want with an anvil 
>is mass and you want to engage that mass.  With a 
>thick enough top & bottom plate, all of the axels 
>should load up close to being uniform so your only 
>concern is what we call slenderness ratio with 
>building columns.  You don't want the individual 
>columns to buckle under load.  I doubt they would ever 
>do that but if you were concerned, you could collar 
>the bundle of axels at a couple of points.
>
> Walt
>