Hello Kevin and rp-ml....
1400 ton clamp is very large for a part that would fit within a mold 10"
x 10" with a Z height of 4". You failed to qualify the manufacturing
process for your tool. However, using injection molding tool design
"rules of thumb" a minimum of 2 tons per square inch of projected area.
Some designers would request <> 3 tons if the materials were similar to
polycarbonate.
Insofar as DTM's SLS RapidSteel 2.0 Paramount has used it successfully
since 1997 in a <> 200 ton press. Never any evidence of crushing from
compression. Paramount has produced contiguous mold inserts in the size
range you specified with RapidSteel.
Regards,
Jim Williams, President and CEO
Paramount Industries
Rapid Product Development & Manufacturing Specialists
2475 Big Oak Road
Langhorne, PA 19047
215.757.9611 voice x229
215.757.9784 fax
888.RPTOOLS toll free
www.paramountind.com * watch for new page May '99
sales@paramountind.com * request company sales information
ftp.paramountind.com * digital data transfer
-----Original Message-----
From: Fusioneng@aol.com [mailto:Fusioneng@aol.com]
Sent: Friday, May 21, 1999 2:37 PM
To: kevin@lilesk.freeserve.co.uk; rp-ml@bart.lpt.fi
Subject: Re: Rapid Tool Question
In a message dated 5/21/99 11:07:29 AM Central Daylight Time,
kevin@lilesk.freeserve.co.uk writes:
<< Dear list,
I have a client who is interested in using a Rapid
Tool
in a press. The tool size will be around 250x250x100mm (10x10x4" for our
friends in the US) and the force the tool will be subjected to is 1,400
tons.
Does anyone know if Keltool or Rapidsteel will withstand this sort of
load?
Apart from machining, are there any other methods for creating a tool
of
this size and strength?
Best Regards,
Kevin Liles
>>
Kevin:
Hi my name is Bob Morton my Company is Fusion Engineering In Rockford
Il. We
have in house 3D Keltool capability. But we also have available most of
the
other processes available. In answer to your inquiry the 3D Keltool
process
can withstand the pressures you are stating as long as its static
pressure
(no shock) and it is distributed over the surface area. The size you
have
stated is a little large for single inserts ( our limit is 8 x 6 x 4 )
but if
you can live with a joint somewhere in the part we could segment the
inserts.
We don't recommend the process for stamping or forming of steel. Though
we
can do Zinc diecast (aprox 50,000-100,000 shots) we don't recommend
Aluminum
Diecast except for prototypes (500 shots max). If you are looking to
build an
injection mold ( it's unclear from your posting). The I would recommend
making it from cast P20 steel (Shaw process). Its not as accurate as 3D
keltool and doesn't last quite as long but it is a sound proven process.
There is an excellent shop in Chicago "Sorcol" that can do your
castings.
You can contact them directly or Email me and I can assist you. My
company is
a large international moldmaking concern and yes of course we would love
to
build a mold for you using whichever technology you desire.
regards
Bob Morton Fusioneng@aol.com
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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