[TheForge] Hydraulic Forging Press

Tue Apr 15 22:36:01 2003

Hey Cameron,

Is there any reason you'd want more snort?  I have the opportunity to make a
press with an 8 or 10 inch cylinder and my 28 gpm pump seems to match ok
with either one (.7 and 1 in/sec, respectively, at 1750 rpm).  The 8" would
be easier to squeeze into a frame and of course take less steel for the
frame.  What do you think?

Ed

----- Original Message -----
From: "Cameron Stoker" <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 12, 2003 5:26 PM
Subject: Re: [TheForge] Hydraulic Forging Press

> I scaled up the principles in the batson design guide to use a 7 1/2"
> trunion cylinder, resulting in a c-frame with about 50T force.  It will
> out forge my #50 Little giant by a lot.  It is great for heavy
> forgings.  Light forging is tricky on it because the dies cool the work
> much faster than a power hammer does.
>
>
> I've built cold punching dies and cold chamfering dies as well. 3/4"
> holes in 1/2" stock are easy to punch cold.
>   With 50T you can do quite a lot of forging without heating the metal.
> It can be particularly nice for doing chamfered square stock for
> curtain rods - the cold working stiffens the rods quite a bit and
> allows for longer spans with fewer brackets.
>
> Lately i've been doing more cold cutting and chiseling of shapes from
> plate. Handy.
>
> On Wednesday, March 12, 2003, at 12:42 PM, chuck schaeffer wrote:
>
> > Dave,
> > I built and used a Batson design a few years back.  In fact Ric has it
> > in
> > Sturgeion Bay with a few minor changes to it to meet his needs.  It is
> > a
> > very good design and easy to built. The only thing, it had limitations
> > un
> > what you could used for.
> >
> > I now build  H frame units as apposed to the C frame. The H frame
> > allows the
> > pressure to go up by using two cylinders and still be under 3000 psi.
> > The
> > press I build now has foot control with automatic return when it
> > reaches
> > pressure with the option of being able to cycle it with a selected
> > range.
> > It develops a conservative 40 tons of force.  The knifemakers at the
> > ABANA
> > conference used my H frame for their demos.
> >
> > If you would have more questions get back to me off line.
> >
> > Chuck
> >
> > Chuck Schaeffer
> > Metals Magic Shop
> > [email protected]
> > Ph. 608.798.4296
> > Fax 608.798.1940
> >
> >
> > ----- Original Message -----
> > From: "Dave Brown" <[email protected]>
> > To: "TheForge" <[email protected]>
> > Sent: Wednesday, March 12, 2003 12:03 PM
> > Subject: [TheForge] Hydraulic Forging Press
> >
> >
> >> I know there was a discussion about hydraulic presses a while back,
> >> but I
> >> wasn't interested then but I am now.
> >>
> >> Does anyone have any experience with the hydraulic forging press that
> >> Jim
> >> Batson
> >> designed?  (see:
> > http://www.artmetal.com/project/TOC/BookRevu/HydroPrs.html )
> >>
> >> I know our good friend and occasional poster to theforge, Chuck
> >> Schaeffer,
> >> has considerable experience in this area.  So, any comments and/or
> >> suggestions will be appreciated from any and all.
> >>
> >> Also, does anyone remember when the discussion on hydraulics took
> >> place on
> >> this list so I can go back to the archives and look the postings up?
> >>
> >> Dave Brown
> >> Heritage Smithing
> >> Green Bay, WI
> >> ABANA, UMBA, GoM, MODA, ARG
> >>
> >> _______________________________________________
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> >
> >
> > _______________________________________________
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> >
> Cameron Stoker
> [email protected]
> "May you run like a vicuna!"
> pgp key @ http://keys.stoker.net
>
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