[TheForge] Re: Power hammer questions

Thu Mar 27 18:09:01 2003

Wouldnt a cast iron anvil be a bit weak on the rebound? or did you mean cast
steel?

----- Original Message -----
From: "Jerry Frost" <[email protected]>
To: <[email protected]>
Sent: 28 March, 2003 5:43 AM
Subject: Re: [TheForge] Re: Power hammer questions

> Thanks Mike and everybody else who came through with anvil / hammer
ratios.
>
> A 15:1 anvil to hammer ratio will be reasonably easy for me, even if I
have
> to cast my own. <grin>
>
> Being in the far northern hinterlands as I am makes finding something like
a
> 12" sq x 36"  hunk of steel a bit problematical. Still, once I get a shop
> up, hopefully this summer, building a cupola melter won't be a big deal. A
> 1,500 lb. one shot pour will make that alumanized fire suit useful. Just
> like I said it would be when the wife gave me THE LOOK when I brought it
> home.
>
> Of course she has NO idea what 1,500 lbs of molten iron hitting the mold
> will be like. I'll probably send her to town that day. <grin>
>
> Frosty
> ------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
>
> Meadow Lakes, AK.
>
>
> ----- Original Message -----
> From: "Mike Spencer" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, March 23, 2003 11:35 AM
> Subject: [TheForge] Re: Power hammer questions
>
>
> >
> > > I'm contemplating a self contained hammer in the 100 lb. range.
> > >
> > > How heavy should the anvil be? Is there a ratio I can apply?
> >
> > I just checked the specs for the 300# Alldays and Onions and no
> > weights are given except for the tup.  But I took the dimensions of
> > the anvil off the blueprints and calculated the weight:  5700#.
> >
> > That's 19:1.  If the ratio is linear, that'd make the anvil for a 100#
> > hammer around a ton.
> >
> > That might be +/- 10%.  Dimensions infra in case you want to check
> > my calculations.
> >
> > (BTW, Frosty, the A&O is still tarped up.  Our 3' of snow is down to
> > 6" now but more is falling as I write.  I'll look for the patent
> > numbers you wanted RSN. :-)
> >
> > - Mike
> >
> > ---
> >
> > Anvil is sort of upside-down square mushroom shape.  The base is 27" x
> > 30" x 8".  The rest of it is 20" x 20" x 36".
> >
> > --
> > Michael Spencer                  Nova Scotia, Canada
> >
> > [email protected]
> > http://home.tallships.ca/mspencer/
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