The Murphy Builders Site

Received: from dbis.ns.ca(really [24.231.18.13]) by smtp.fundy.net
via sendmail with esmtp
id <m102F2Y-00000EC@smtp.fundy.net>
for <murphy-rebel@dcsol.com>; Mon, 18 Jan 1999 09:48:26 -0400 (AST)
(Smail-3.2.0.101 1997-Dec-17 #4 built 1998-May-27)
Message-ID: <36A33CCF.FAA0F653@dbis.ns.ca>
Date: Mon, 18 Jan 1999 09:53:19 -0400
From: David Ricker <ricker@dbis.ns.ca>
X-Mailer: Mozilla 4.05 [en] (WinNT; I)
MIME-Version: 1.0
To: " (Murphy Rebel)" <murphy-rebel@dcsol.com>
Subject: Re: Engineering Book + Nutplates
References: <fe801386.36a24069@aol.com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Brian

Here is another galvanic corrosion chart with more detail on alloys etc.
This
seems to indicate that certain types of SS which haven't been passivated are
not
too far from the commonly used aluminum alloys. Of course, matching
material for
material is usually a good idea.

BTW, for thicker sheet metal, it might be interesting to look at the PEM
fasteners vs nutplates on this companys' pages.

Dave R.

http://www.pemnet.com/cgi-bin/pemnav.pl ... ldir=fastp
resshome/designinfo/&nav-location=Fasteners+and+Presses/Design+Information/G
alvanic+Corrosion+Potential&site-area=fasteners




RebelAir@aol.com wrote:

Hi Ken

Sorry to bother you again about this, but, I misplaced the info you gave

me

about the book on basic engineering principles. Would you please mind

giving

me the title and authour is possible? I would sure like to go pick it up.

As an example, I was talking to Carey at MAM on Friday about the floatfix

and

I suggested stainless steel rivets. He said no because of the use of
disimilar metals?
I don't understand. I would like to learn more. I am sure we could build
better, less maintenance prone aircraft armed with more information.

By the way Ken, Carey said that you do not need 12 rivets forward and

behind

of the ones already in the doorpost. He suggested 8 or so altogether is
enough. Hard to understand what they send you sometimes and what they

tell

you over the phone. I think I will go by what feels right in the space
allowed. Carey did say that the rivets thru FUS-9 must be interpitched

with

additional rivets for the full length of the doorpost. This is now going

in

the manual. Nice of them to let us know?!

Those guys still continue to frustrate me with their lack of information
dissemination.

Cheers

Brian #328R

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Received: from albedo.net (ppp201.albedo.net [206.51.22.220])
by juliet.albedo.net (8.9.0/8.9.0) with ESMTP id WAA19243
for <murphy-rebel@dcsol.com>; Mon, 18 Jan 1999 22:00:06 -0500
Message-ID: <36A354E5.EB50D147@albedo.net>
Date: Mon, 18 Jan 1999 10:36:05 -0500
From: klehman@albedo.net
X-Mailer: Mozilla 4.05 [en] (Win95; I)
MIME-Version: 1.0
To: " (Murphy Rebel)" <murphy-rebel@dcsol.com>
Subject: Re: Engineering Book + Nutplates
References: <fe801386.36a24069@aol.com> <36A33CCF.FAA0F653@dbis.ns.ca>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Great chart Dave. Presumably 6061 is about the same as the 6053 aluminum
shown
in the chart.
Can't find a spec for the type of stainless in our rivets but I assume they
are
all passivated. Anybody suspect or know otherwise? 5052 and 5056 are common
for
aluminum rivets and the mandrels of avex rivets are zinc yellow dichromate
covered steel according to Avdel.
Ken

David Ricker wrote:

Brian
Here is another galvanic corrosion chart with more detail on alloys etc.

This

seems to indicate that certain types of SS which haven't been passivated

are not

too far from the commonly used aluminum alloys. Of course, matching

material for

material is usually a good idea.

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------