×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

joining Al to Al

joining Al to Al

joining Al to Al

(OP)
I need to fabricate a part from aluminum. Basically, it has a thin disk (33 mm x 0.6 mm) connected to a pin (4 mm x 9 mm). I know I can machine it from a round rod with much patience. But I would like to explore the possibility of joining the disk and pin after fabricating them separately.

The disk will be polished on the flush side (diamone paste). The assembly will be electroless nickel plated fist, and then hard chrome plated on the flush side.

RE: joining Al to Al

Press fit, brazing, welding would be the processes that jump to mind.

The disk is pretty thin, what's the loading on it?

Plating 'inseperable assemblies' can be problematic, I'm not sure how nickel is but I know the cracks/changes in material properties can affect other methods.

Posting guidelines FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm? (probably not aimed specifically at you)
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?

RE: joining Al to Al

it's my opinion
it's cheaper and easier to turn from bar.

the handling will be the issue with assy.

however that said, tig/mig tack weld & low temp vacuum braze.

RE: joining Al to Al

(OP)
1) Loading on the part: Highest loading will come from polishing the disk. No loading from operation. It is a collection plate of outgassing stuff from plastics. The pin is just to hold the disk from falling off.

2) The flush side cannot have a crevice.


 

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!


Resources