Keith;
I dimly remember reading an article in "Machine Design" a long time ago
on how those aluminum cans were made. The main part is formed by "impact
extrusion".
Regards, Neil Tucson, AZ
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net] On Behalf Of Pork Pie
Sent: Sunday, February 20, 2005 7:29 AM
To: Keith Turk; list answer
Subject: Re: a coke can?
Keith,
the patent on this was registered for a company named Lubeka - based in
my hometown Heilbronn.
About 25-30 years ago they went into financial trouble and the patent
was worldwide sold to pay the people. A friend of mines father was a
engineer in this company.
The trick is to get the alumininum pressed and length in the same time -
high quality (three pieces) wheels are done the same way - only not so
deep. If you cut the can you will see that the material thickness is not
always the same. When the can is filled the "cap" laid on the top of the
can and a tool is bending the overstanding alu down and against the can.
Depends on how big the can is the tool is a rotating two wheel equipment
or a complete round double cone - the inner one holds the cap, the outer
one press the overstanding down, a third ring come from two sides and
close it.
If you see it you will be surprised hwo easy it is.
See ya
Pork Pie
"Keith Turk" <kturk@ala.net> schrieb:
> I was just looking at one of my Diet Coke cans... I'm tempted to take
it down
> to the shop and do some measuring... Just never really considered the
work it
> took to make one of these. Realize that a soda can is made from a
single
> sheet of aluminum and then capped after it's filled?
>
> Someone out there has the answer to how this was done...
>
> Keith ( see it's easy to boggle a feeble mind )
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