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Posted by Will on March 22, 2008, 8:23 pm
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I purchased a cheap hydraulic press to help flatten out warped pieces of
soft metal. Apparently the press does not come with a plate or die set.
Can someone recommend a cheap attachment for a 12 ton hydraulic press that
would work on soft metal, and I need a pressing area about eight inch by 12
inch.
--
Will
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Posted by Jeff R. on March 22, 2008, 10:50 pm
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>I purchased a cheap hydraulic press to help flatten out warped pieces of
> soft metal. Apparently the press does not come with a plate or die set.
>
> Can someone recommend a cheap attachment for a 12 ton hydraulic press that
> would work on soft metal, and I need a pressing area about eight inch by
> 12
> inch.
What variety of soft metal are you referring to?
Copper foil?
I fear you are going to be terribly disappointed with the results.
If the metal you are flattening is narrow enough you would be far better
served with a rolling mill. Not real cheap, but much more effective.
If you persist with the press, you'll just have to fabricate two heavy
plates to fit.
...but don't expect the metal to stay flattened once you remove the 12 tons.
(Don't take my word for it. Give it a go. Then Google "rolling mill".)
--
Jeff R.
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Posted by spaco on March 22, 2008, 11:48 pm
Please log in for more thread options Go to a welding shop and ask them for 2 plates of A36, 12" X 12 inches
and at least 1/2" thick. If they have anything the is close, but still
small enough to fit under your press, ask them if you can borrow them.
Take them home and try them out. Since your press may not have the
power to flatten the whole part at once, also try to get a 6" X 6" piece
of plate. Place your workpiece on the big plate, then put this smaller
plate on top, squish, move the work, and squish in the next spot. If
this works, you may have to bevel the edges of the smaller plate so it
doesn't dent the workpiece at the edges.
I have flattend 4" X 16" pieces of 16 ga steel successfully with this
method using my 20 ton HF press.
> http://www.spaco.org/Press.htm
Pete Stanaitis
---------------------
Will wrote:
> I purchased a cheap hydraulic press to help flatten out warped pieces of
> soft metal. Apparently the press does not come with a plate or die set.
>
> Can someone recommend a cheap attachment for a 12 ton hydraulic press that
> would work on soft metal, and I need a pressing area about eight inch by 12
> inch.
>
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Posted by Will on March 23, 2008, 2:22 am
Please log in for more thread options > Go to a welding shop and ask them for 2 plates of A36, 12" X 12 inches and
> at least 1/2" thick. If they have anything the is close, but still small
> enough to fit under your press, ask them if you can borrow them. Take them
> home and try them out. Since your press may not have the power to flatten
> the whole part at once, also try to get a 6" X 6" piece of plate. Place
> your workpiece on the big plate, then put this smaller plate on top,
> squish, move the work, and squish in the next spot. If this works, you
> may have to bevel the edges of the smaller plate so it doesn't dent the
> workpiece at the edges.
>
> I have flattend 4" X 16" pieces of 16 ga steel successfully with this
> method using my 20 ton HF press.
> > http://www.spaco.org/Press.htm
Going to your web site, I have basically the same Chinese press you do.
Doesn't anyone make some kind of die set that would fit the ram of such a
press as an off the shelf piece of equipment? It seems like a real hassle
to to have somehow balance two thick pieces of steel, then get a third one
between it.
My application is flattening rackmount rails on equipment or fixtures that
slide into rackmount equipment. I need to have both hands on the piece I
am working with and really wanted to avoid having to balance the plates on
either side of the equipment.
I'm willing to pay up to $200 for the die set.
--
Will
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Posted by Jim Wilkins on March 23, 2008, 8:03 am
Please log in for more thread options Generally you have to bend the metal past its yield point in the
opposite direction to remove a kink. A flat plate won't do that.
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> soft metal. Apparently the press does not come with a plate or die set.
>
> Can someone recommend a cheap attachment for a 12 ton hydraulic press that
> would work on soft metal, and I need a pressing area about eight inch by
> 12
> inch.