[Amps] Sheet aluminum

[David Cutter]

If this is just the rf deck and not containing heavy things like 
transformers, you will probably do with 2mm thick 6082 for most of the work, 
unless you are trying to make it as light as possible.  If you are, then 
look carefully at the stresses on the panel in question and you could 
probably reduce to 1.5 or even 1mm in some places.  If you do this, you 
might need to beef up only small areas with a second small plate.  If you 
want to stop a large panel from flexing you can pop rivet a piece of quarter 
or half inch angle diagonally across the panel.  Panels above a certain area 
(can't remember exactly but it's around a square foot from old BS and UL 
standards) you should consider not going less than 1.5mm for impact 
resistance if on the other side there are high voltage components or devices 
that if impacted could lead to a dangerous condition.  Here again you can 
beef up with angle.

David
G3UNA


----- Original Message ----- 
From: "Steve Flood" <kk7uv at bresnan.net>
To: <amps at contesting.com>; <rfamplifiers at yahoogroups.com>
Sent: Friday, May 16, 2008 12:02 AM
Subject: [Amps] Sheet aluminum


>I have my homebrew amp project ready for the sheet metal order.  I already 
>have a .125" thick aluminum front rack panel.  But how heavy should I go on 
>the remaining panels?  I will have 2 side panels, a deck, an interior front 
>panel (the real "front" of the rf compartment.  The other front panel will 
>sit a few inches in front allowing space for meters and such), then of 
>course top, bottom and rear panels.  I will hold everything together with 
>half-inch aluminum angle stock.  I am thinking .068 to .075" thick for the 
>deck and sides, then .050" for top, bottom, back.
>
> Steve KK7UV
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps