×
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

Rivet length

Rivet length

Rivet length

(OP)
Hi Everyone, does anyone know how to calculate the length of a rivet? This rivet will be process with orbital pinning. Thanks

RE: Rivet length

What kind of head?  How are you compressing/squishing the rivet head?  One side access or two sided?   

What thickness material?  What meterials are you fastening?

What budget do you have, and how many dozen/hundred/thousand/million rivets do you need to fasten?  

Shop or field?   

RE: Rivet length

(OP)
We are using orbital forming to secure a baffle to a cam cover by using aluminum rivets. We are fastening only from the upper side.

This looks like the machine we are using:

http://www.baltecorporation.com/about_radial.html

We are riveting at 14 places

We need to have a 6.30 and 7.30(both are min) diameter after riveting. Current diameter before riveting is 5.0 mm for the 6.30 and 6.0mm for the 7.30. I am having problems after the riveting operation, some of the rivets are breaking.
 

RE: Rivet length

According to the Orbitform reference your 'h' length should be .5*d; 1/2 half the rivet diameter.  The other reference recommends 1.5 times the rivet diameter for your length 'h'.
If you are forming the rivet to a sharp edge, I would suspect you are forming too little material too far and the sharp edge is cracking.
What is the length you are using before forming?

Ted

RE: Rivet length

(OP)
The length of the rivet is 3.4 mm, measured from the base to the top of the rivet.

RE: Rivet length

What is the grip length?

Ted

RE: Rivet length

(OP)
what is the grip length?

RE: Rivet length

Grip length is the finished thickness of the metals being riveted.

say.....10 gauge (.1345) to 16 ga (.0598)  = 0.1943" grip length


this information (if I had not known) is available in a 10 second web search

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