Subject: New Direction??
From: ACRE
Date: 2/17/2004, 11:37 AM


rvz wrote:

carbon fiber for the case.

I came across that link some time ago, and dismissed it for a
couple of reasons.  Since it wasn't shot down here, maybe I
was too hasty.  My original thought was that there would be a
variety of thermal expansion coefficient problems, given the
pile of metal parts bolted to the CF itself.  It also looked like a
lot of machining anyway, no real savings there.  The only appeal
I could find was the weight savings, which of course in some
cases is a major factor to consider.  Critique's anyone?

Bob

Well in our case I don't think we need any metal inserts except
perhaps around the bolt holes and then just simple spool shaped
spacers.

Paul Lamar


This looks very attractive, but if there is a concern about non-structural
engine parts (such as intake manifolds or oil pans) being
heat-sensitive/combustible, wouldn't this element be even more
mission-critical in case of fire or excessive heat >300 degrees?

In my humble, past experience, it has been difficulty to achieve reliable,
long-term bonding between rigid metal elements and flexible resins, such as
ones might require in small-diameter, high-load areas (e.g. the
engine-bellhousing bolts).  Perhaps the technology is better now?

Scott Gettings

 
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