Alt-BEAM Archive
Message #04571
To: beam@sgiblab.sgi.com
From: "G.R.Reddy" rrgudur@krdl.org.sg
Date: Thu, 17 Jun 1999 13:15:44 +0800
Subject: [alt-beam] Re: glue for metals...
Hi!
The vibrations are soft but consistent. I can rearrange the layout to isolate the
vibrations in my next version, but for now, i want to get this thing done.
The electronics are assembled in this aluminum box for shielding, heat dissipation
as well as protection purpose. I am trying to glue this to main aluminum structure
(on which, i do not want to drill holes for rivets). The contact area for the
gluing is around 4 sq. inches. The box weighs around 500 grams. If it comes of one
more time i've decided to wrap fiber glass tape to reinforce the joint.
Reddy
-------------------------------------------------
Bob Shannon wrote:
> Lemme guess, gas engine, or a really honkin' big electric?
>
> Are you sure your not having a dynamic prop imballance?
>
> I learned to fly, and some basic aerobatics in a alumimun and epoxy
> Grumman with a over-sized engine. That epoxy bonding sure stuck
> well.
>
> Just how much viberation do you have?
>
> "G.R.Reddy" wrote:
>
> > Hi!
> >
> > Thanks for all the suggestions.
> > I did take all the precautions of sanding it with fine grain paper, 3m scrub
> > wash and final clean with isopropyl alcohol just before applying the glue.
> > But nothing seems to work. The problem could be the brittleness of the epoxy
> > glues.
> > I'll try rubber layer technique and see if it holds.
> >
> > Thanks again for suggestion.
> > Reddy
> > ----------------------------------------------------
> >
> > > G.R.Reddy wrote:
> > > >
> > > > Hi!
> > > >
> > > > I am having problems sticking two 1mm thick sheets of aluminum. I tried
> > > > araldite and other general purpose epoxy glues, but its not strong
> > > > enough. I would really appreciate if some one can suggest me some sure
> > > > shot glue to stick aluminium. This is for my autonomous flying machine.
> > > > The problem could be vibrations caused by engine. Presently nothing
> > > > works, i just want to get over my initial problems of things falling
> > > > apart.
> > > >
> > > > Thanks
> > > > Reddy
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