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


Testing Coating Thickness?

Testing Coating Thickness?

Testing Coating Thickness?

So since I started my co-op I've been struggling to figure out the cause of a stickiness issue between an I-Shaft and a latex painted yoke. Our shafts basically have a band of steel that stops the spline on one side, and starts a different spline on the other, I think on our drawings they call it a transition (correct me if I'm wrong, I'm still very new to the engineering world, right out of high school.). When the yoke is fully pressed up against the transition they bind, and you basically can hold the shaft by the yoke and it won't come apart. Some parts even need some assistance coming off...

So I started testing with different lead-in chamfers for the yoke, I had our model shop machine 3 new chamfers on existing yokes, no chamfer (Our drawings don't show a chamfer despite there being one on production parts), 45 degrees, and 70 degrees (the transition angle was measured at around 20 degrees). Nothing has worked so far. I'm thinking it's an issue with how thick the paint is, but I'm having trouble figuring out how to measure that. I'm stumped and I could really use your help and guidance! Thank you!

RE: Testing Coating Thickness?

Painting spline fits is a bad idea. Don't paint them and you won't have to worry how thick the non-existent paint could be.

RE: Testing Coating Thickness?

Google Paint thickness meter......

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!


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