The points raised in this mail are quite correct we must however realise
that the different methods of rapid tooling are quite complimentary and each
one has its own advantages.
Question
Which method of rapid tooling would we chose for the following applications?
1. A part for which no CAD exists the part is reasonably shallow with no
significantly vertical sidewalls 4k off required?
2. A forge tool 2m by 3m in overall dimension CAD existing?
3. A small detailed tool insert CAD existing 20k off
4. A tool to produce waxes for an investment cast component
The four examples above with the exception of the large tool could be
answered with the use of many different rapid tooling techniques. All would
be valid, and results would be similar between the processes. The typical
measurements which would differentiate between the processes would be
surface finish, accuracy, hardness,durability and speed (there are many
more).
Accuracy therefore is only one limiting limiting factor.
I guess my point is that as professionals we must recommend to our clients
the best way forward for their projects. Unfortunately the best way forward
may not be using our preferred technique or involve the purchase of our
equipment.
So be honest and give your clients all the information they need to make an
informed decision.
Have a great Christmas and new year
Dr. Chris. Sutcliffe
Product Innovation and Development Centre
Department of Engineering
3 Brownlow St.
Liverpool L69 3GL
(0151) 794 8022 Direct
(0151) 794 8021 Secretary
01893 209 556 Bleeper
EMail c.j.sutcliffe@liv.ac.uk
-----Original Message-----
From: MIN CHANG-SHIK <mcs9413@lge.co.kr>
To: rp-ml@ltk.hut.fi <rp-ml@bart.lpt.fi>
Date: 22 December 1998 08:44
Subject: CNC High Speed Machining as an Alternative of Rapid Tooling
Dear ALL :
I think there might be some alternatives for all the rapid tooling
methods that have already reached their critical point.
When it comes to accuracy(the 1st priority of production mold),
all the rapid tooling methods developed so far could't go over
the conventional CNC tooling.
For turnaround time too, high speed machining technologies have
much more possibilty than rapid tooling methods.
For Invetment Cost, high speed machining technologies can give
us much more possibilty than rapid tooling methods.
So I think there is no alternative of rapid tooling tech. except CNC
HIGH SPEED MACHINING for the time being.
Is there anyone who has some opinions on this ?
Any opinion you can give me would be greatly appreciated...
Best Regards.
Chang-Shik,Min
Precision Technology Center,LG-PRC / LG Electronics Inc.
19-1,Cheongho-Ri,Jinwuy-Myon,Pyungtaek(451-713), R.O.Korea
(Voice)+82-333-660-7090
(Fax)+82-333-660-7384
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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