RE: Some reliable equations for RT

From: Pattison, Will (
Date: Fri Feb 01 2002 - 18:47:35 EET

in my experience, the only equation that can be used to determine shot life
in a rapid tool is something like:

tool life is inversely proportional to part complexity, inversely
proportional to how many parts you need, inversely proportional to how much
your customer is willing to spend, inversely proportional to how fast they
need parts, directly correlated to the material they want, and directly
proportional to the real toolmaking knowledge that goes into design of the
rapid tool.

i'd be curious to see any mathematical model that effectively takes all that
into account.

will pattison, skeptic
product development
plano, texas

-----Original Message-----
From: Chang-Shik Min []
Sent: Friday, February 01, 2002 9:23 AM
Subject: Some reliable equations for RT

Dear Rapid Tooling specialists: are you today ? I have survived this field of RT research since
Based on statistics,probability and stochastics,I have been trying my best
to simplify all the RT business processes,especially for quoting and process

Meanwhile,I have recently come up with some highly reliable empirical
equations for tool (which is made by RT methods)life estimation,part cost
estimation for low-mid volume production from RT molds.
Is there any one who has ever tried to make some empirical equations for RT
Any comment you could give me would be greatly appreciated.

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