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Kelly,
If it's hardened by localized heat then it's
probably 1045 ( .45 carbon steel). The underlying steel would be still hard to
some depth similar to the e-shaft. So the surface would not be as hard but as we
are only taking .5mm off each side, there would still be plenty of toughness in
the underlying material.
Coupled with the fact that there has been no
reported detriment to other rotors cut to 3mm in turbo applications, would
confirm my suspicions that there is nothing to worry about.
George ( down under)
Would be interesting to know the thickness of this
hardening........I wonder
if grinding of the apex seal slots for 3 mm seals removes the hardened
layer ??
--
Kelly Troyer
"Dyke Delta"_13B
ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold
--------------
Original message from "Ed Anderson" <eanderson@carolina.rr.com>:
--------------
> When my engine swallowed and apex seal, a
piece of it flew back and got
> squished by the next apex seal area
and actually caused a corner of the
> rotor to crack. So it appeared
to be harder than the rest of the rotor
> which was soft enough for
the metal to smear. Interesting videos for sure,
> thanks for
sharing, Marc
>
> Ed
> ----- Original Message -----
> From: "Marc Wiese"
> To: "Rotary
motors in aircraft"
> Sent: Sunday,
October 07, 2007 9:48 PM
> Subject: [FlyRotary] Mazda video on how to
make a rotary....
>
>
>
http://www.mazda.com/mazdaspirit/rotary/howto/index.html
>
>
Interesting. I never heard about the hig h frequency RF hardening of the
apex
> seal slot area before.....!
> Marc Wiese
>
==================================================
> Fellow RE
enthusiast.
>
> Mazda Japan has released a very interesting
set of small videos that detail
> how it creates and builds its
Rotary Engines.
>
>
>
>
http://rotarynews.com/node/view/950
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