[AR] Re: Electroforming Experiment
- From: Norman Yarvin <yarvin@xxxxxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Sat, 13 Jul 2019 15:20:15 -0400
On Sat, Jul 13, 2019 at 06:50:19AM -0700, Ed LeBouthillier wrote:
The largest benefit of this approach is the elimination of the minimum
gauge issue. As shown, making a 0.0025" thick shell is trivial. So, for
example, a low pressure propellant tank which needs to be 0.005" thick
(say in nickel instead of copper) is quite feasible.
Minimum gauge issues don't end with fabrication, though; 0.005" is
pretty flimsy and floppy, the latter perhaps being more important.
Many an engineering design has looked good when analyzed at zero
frequency but failed due to oscillations.
Besides electroplated copper, by the way, there's also electroless
copper, which is better at plating the inside of cavities (which in
electroplating are farther away from the anode and thus plate more
slowly). There's a DIY recipe at:
https://www.youtube.com/watch?v=Z228xymQYho
Other related posts:
