Zenith Aircraft Builders and Flyers
Online Community of Zenith Builders and Flyers
Modified Rivet guns
I remember reading the reason for the modified heads on the rivet guns, but for the life of me can't find it...So can someone enlighten me and is it necessary?
Replies to This Discussion
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Permalink Reply by Chris Aysen on
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The rivets commonly used on Zenith aircraft have a countersunk head thus they would require dimpling or countersinking of the skins. So I would assume (don't know for sure it was HIS idea) Chris Heintz recommended the rivet puller heads be modified to create a domed head.
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Permalink Reply by Jared Morgan on
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Cheers Chris...One more thing to do before I start :(
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Jared - I would believe at some point you will have a pnematic riveter. Save yourself some frustration and buy the modified puller heads from Zenith. When I purchased the puller the 2 (A4 & A5) heads came with it. I paid about $95 with shipping (5 years ago).
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Permalink Reply by Fred Stratman on
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It's necessary. The countersink-shaped head of the rivet needs to be folded over until it becomes a dome shaped head with total bearing on the part being riveted. When pulled to that shape the nail will "pop" and you have a strong rivet. An added benefit is that it is a more aerodynamic shaped rivet.
You need to read page 9 of the 701-Construction-Manual PDF on the builders resource section of Zenithair.com which describes the process.
I just did mine using the SE-5 egg shaped burr in a die grinder without softening the riveter head. Although I had to build a jig to hold the grinder and the riveter head steady.
A good place to get this burr is from http://www.burrs4less.com/ It cost $9.90. They have a $50 minimum order but I picked up a half dozen other burrs and because I was a first time customer they included a free inline die grinder.
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Permalink Reply by Allan / Zenair Australia on
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Hi Jared check out Chris Heintz
Heintz Design College Articles: Aircraft Design and Construction
Riveted Joints (Part 2)
the doming pulls the rivets from the top and the bottom which sets the rivets tighter then if you just used a normal domed rivets
Cheers
Allan
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Hi all,
Thanks for your answers...and Allan thats exactly what I was trying to find!
"Heintz Design College Articles: Aircraft Design and Construction
Riveted Joints (Part 2)"...Knew I had read it somewhere!
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Permalink Reply by Vergoz Max on
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Hi...
What kind of rivet ( flush or protruding head ) are used on Zenith a/c? countersunk are they the same than flush head like those i can get from A/C Spruce.??
My Cz 701 equiped with protruding rivets when i bought it and i got flush rivets when ordered at Zenith store .
need some infos /pics about rivet gun head modification
Tks a lot
Have a nice w/end
Best regards from La Reunion
Max
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