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Hydraulic Die Forming in larger sizes


#1

Hello, I would be most grateful if anybody could help me who might
have tackled hydraulic press die forming in larger sizes than
outlined in Susan Kingsley’s book. I would like to press out
half-hulls for toy sailboats. The size involved would be about 18
inches long X 5 inches in width X a press depth of 3 1/2 inches. The
material I propose to use would be 22 thou annealed sheet copper roof
flashing. Any personal experience would be most welcome, as would any
references to books etc., or to earlier postings on Orchid. Or to
other useful sites on the Internet.

Thanks Kindly,
Hugh F. Mowat


#2

Hugh, First you will need probably the biggest press made by
http://www.bonnydoonengineering.com Contact Lee Marshall there and
I’m sure he can help you with any questions. Thomas Blair Island Gold Works


#3

Hugh, Things of almost this size have been done using Bonny Doon
Engineering Form boxes. They are steel boxes with 3/8" thick walls
that are filled with the die and a very soft rubber and then a
plunger plate that is used to compress the whole stack the box walls
keep the rubber from escaping on the sides. You can get very deep
forms this way. They currently make a box that is 12"x6" x 4" so you
would need to have someone make you a larger one. Look at
http://www.bonnydoonengineering.com/catalogue/formbox.html it will
give you an idea if this solution will work for you.

Jim
James Binnion Metal Arts


@James_Binnion
Member of the Better Business Bureau


#4
    Hello, I would be most grateful if anybody could help me who
might have tackled hydraulic press die forming in larger sizes than
outlined in Susan Kingsley's book. I would like to press out
half-hulls for toy sailboats. The size involved would be about 18
inches long X 5 inches in width X a press depth of 3 1/2 inches. 

Suggest you contact Lee Marshall at Bonny Doone Engineering - Lee
developed the hydraulic press. He would have all the that
you need, I believe. I do know of one person who is using the 100 ton
press, but I still think your best bet is to go directly to the
engineer who designed the press. Lee could no doubt give you the best
available.

K