Dissimilar metals - Page 2 - SailNet Community
Reply
 
LinkBack Thread Tools
post #11 of 12 Old 05-14-2011
Senior Member
 
Join Date: Mar 2008
Posts: 888
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
Then again you could use aluminum Rivnuts. They install like a pop rivet using a threaded mandrel. Then you use a stainless bolt. Corrosion problem, stripped thread? Drill off the head of the rivnut and push it through, install another. I've used thousands of them in fiberglass too. The holding power of a rivet in thin metal with the convenience of threads, the best of both worlds.

Gary H. Lucas
GaryHLucas is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #12 of 12 Old 05-14-2011 Thread Starter
Junior Member
 
Join Date: Jan 2009
Location: Lake Michigan - East Side
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Quote:
Originally Posted by knothead View Post
There is no problem drilling and tapping when the fasteners are subject to shear loads, but rivets are stronger if the fitting is being pulled away from the spar as they would be in flag halyards for example.
I found this over on wikipedia, and I'm trying to determine if it's the same as what Knothead is saying:
rivet, it can support tension loads (loads parallel to the axis of the shaft); however, it is much more capable of supporting shear loads (loads perpendicular to the axis of the shaft). Bolts and screws are better suited for tension applications.

Knothead "There is no problem drilling at tapping" -- which to me say installing something with threads (screw or bolt) -- "ok for shear" --which to me is what wikipedia is saying is lateral pull, not trying to pull the rivet straight out of its hole.

Correct?

But then Knothead continues: "but rivets are stronger if the fitting is being pulled away from the spar as they would be in flag halyards for example" -- which to me says being pulled straight out if its hole.

Conclusion? Knothead is saying the reverse? (Maybe it's late in the night after spending all day buffing the freeboard for launch on Tuesday.)
NoWet is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Newfound Metals Stainless Ports joub Gear & Maintenance 22 10-15-2013 10:30 PM
Raft-up with dissimilar boats bacampbe General Discussion (sailing related) 1 06-26-2010 03:00 PM
New Found Metals is in bankruptcy? Tartan34C Gear & Maintenance 4 08-08-2007 11:08 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome