×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

5052-H32 Aluminum

5052-H32 Aluminum

5052-H32 Aluminum

(OP)
I design solar panel mounting mounting hardware that needs to survive outdoors for 20 years or more.  In a new design, I have a flat piece of 5052-H32 1/8-thick aluminum, about 3-inches wide by 6-inches tall that rests, vertically, in a base piece made of the same aluminum.  The base piece is folded to form a rectangular opening, so that the flat piece I described fits inside it, loosely, and is free to move up and down in the base piece.  I realize this is difficult to picture.  In any case, could I expect that this aluminum, without any finish would survive for 20+ years outdoors, and that the piece would still slide up and down in the base piece after years of exposure?  Or, would anodizing be necessary?  

RE: 5052-H32 Aluminum

How frequent is the motion?  If the frequency is high enough, you would have a wear problem that would exacerbate corrosion problems.  You may need a surface treatment like anodizing, perhaps with friction modification.

RE: 5052-H32 Aluminum

(OP)
The sliding is not expected to happen often at all, maybe once in 5 or 10 years time.  Thanks for your reply.

RE: 5052-H32 Aluminum

I would recommend anodizing, or at least some type of light polymer coating, varnish, shellac, etc.

RE: 5052-H32 Aluminum

The problem is ore to do with the environment that it will be operating in. Although aluminium is regarded as non-corrosive to the normal person, it can actually corroded quite easily by a simple electolytic cell, typically salt water can be nasty.

Therefore, to cover all working environments i would perform some type of coating.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close