[TheForge] Cone Question

[GHS]

If your blank was round or a large washer perhaps.

Imagine the mandrel with a corresponding female half.
Put them together and weld a u shaped piece of strap, one end to each piece.

Place blank heated or not on top of the female die with male die 
centered. Hit the sandwich with sufficient force and you have the cone.

If it ripples or tears try it again with a hot blank.

Cutting the opening with a grinder, chisel appropriate cutting die or 
however suits you.

Bob Ehrenberger wrote:

> Dave & Mike,
> 
> I've made a mandrel of sorts by swaging down a piece of pipe.  It didn't
> seem to help much since it was hard to hold the blank up to it while
> working.
> 
> I need to make about 25 for now but expect to have more ordered later.
> Unless I do a really bad job then they will probably look for someone else.
> 
> My blanks look like pieces of pie.
> 
> Mike please explain what you mean be clapper die.
> 
> So far the method that seems to work best is to start the pieces by driving
> them into the half circles on the edge of my swage block, close them up by
> hammering on the edges, and then smoothing out the kinks and flat spots on
> my make shift mandrel.  Very time consuming.
> 
> Robert Ehrenberger
> Shelbyville, Mo.
> 
> ++++ Original Message +++
> Message: 10
> Date: Fri, 16 Jul 2004 10:57:13 -0500
> From: GHS <ghs at execpc.com>
> Subject: Re: [TheForge] Cone Question
> To: Sponsored by ABANA <theforge at mailman.qth.net>
> Message-ID: <40F7FAD9.8080403 at execpc.com>
> Content-Type: text/plain; charset=us-ascii; format=flowed
> 
> How many do you need to make?
> Is it enough to make a clapper die?
> I am assuming that your blanks are circles and not "C" shaped.
> (That is cut for a blacksmiths approach not a tin smiths.)
> 
> Mike Graf
> 
> Dave Brown wrote:
> 
> 
>>At 09:51 07/16/04, you wrote:
>>
>>
>>>I've got a project where I need to make a large number of small
>>>cones.  They
>>>have a 1 1/2" opening and are 2 1/2" tall out of 14 ga steel.  I've
>>>got the
>>>blanks cut out and have formed a couple of them, but they are clumsy
>>>to work
>>>with and take a lot of time.
>>>
>>>Have any of you guys come up with a technique for forming cones that you
>>>would like to share?
>>>
>>>Robert Ehrenberger
>>>Shelbyville, Mo.
>>
>>
>>Two approaches come to mind, neither of which involve Wal-Mart parking
>>lots.
>>
>>1.  Turn, or have someone turn a hardwood cone that matches the size and
>>slope of your metal cones.  Use this as your forming mandrel.  Wrap
>>around the wood cone, you may want to strap it tight, and weld/braze the
>>edges where they meet.
>>
>>2.  Use a slip roll with ... never mind, your cones are too small for
>>this approach.
>>
>>Dave Brown
>>Heritage Smithing
>>Green Bay, WI
> 
> 
> 
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