Return to Index  

Acid etching

June 20 2012 at 4:18 PM
Joe  (Login JersyJoe)
HyperScale Forums
from IP address

Response to "Acid etch" on P-51's...

Aluminum, like nearly all metals, gains a thin layer of oxidation when exposed to air and moisture. There are many
types of aluminum fluxes but acid is the quickest and surest in a production mode. Aluminum spot welding make oxidation free surface an abolute must or the weld will inferior and fragile. Aluminum requires three times the curent (150 amps) and only one fourth the welding time (.10 sec) as steel. The power requirement for aluminum spot welders can be very expensive unless capacitor induction macines are used in thye production mode.
After a period of time the acid etched or acid fluxed
surfaces regain the oxidation layor.
Aluminum stick (Heliarc) welding must use a helium cloud to keep oxigen out of the welds. Heliarc welding for aluminum also require more curent and les time.
Even though it costs more, it is the weight of the steel alternative that makes aluminum and aluminum welding a necessity.

 Respond to this message   

Posting or replying to messages on Plane Talking requires visitors to register:

  1. First you will need to register with Network 54, the Forum provider. Click here to register with Network 54. (If you already have a Network 54 Login you can go straight to the next step)
  2. Then, while signed in to Network 54, you can sign up for HyperScale's forums. Click here to sign up for HyperScale's forums.

Your user name and password will give you full posting privileges to all of HyperScale Forums.

Please note the following conditions of posting:

All contributions are welcome but please refrain from political or abusive comments, racially or religiously offensive remarks, swearing (including the thin disguising of swear words with asterisks and other characters), insulting language and crude metaphors. Please do not use Plane Talking as a public platform to complain about retailers or manufacturers (about issues such as broken or missing parts) before you have followed all normal channels to resolve any greivance. Plane Talking is not the place to conduct personal feuds or for posting personal attacks. Please do not post in capital letters only, as this is considered to be shouting and therefore impolite. Also, please do not post in 'texting message' word format. Any posts breaching these guidelines will promptly be removed from the server and the offender may be excluded from further posting to the HyperScale Forums. Off-topic posts may also be removed from the server.

In addition, Plane Talking is not a forum for the public criticism of the models that appear as Galleries or Articles. Please make any suggestions for improvements or criticism direct to the author via the email link at the bottom of the Article.

Finally, please note that this Discussion Group is privately operated and that I reserve the right to delete any post or cancel any registration for any reason whatsoever.

free counters