swisseagle
Well Known Member
Hello
I'm supporting two buddys during the start of their RV-7A project.
They showed me the first rivet results on the real parts ... ok, shop head looks very good, but what catch my eye was this:
Riveted with a pneumatic squeezer, not with a riveting-gun. The ring you can see on EVERY rivet.
The cupset is also pressing at the outisde of the rivet head. Ok, sometimes, when you hold it not absolutely perpendicular to the surface, you get a mark, but only about 1/4 of the diam. and not a full ring completely around!? On my plane and another buddys plane, we could not found such a ring on our rivets
This is what they are using:
Top row from left to right is a 3/32" & 1/8" cup sets; 1/8” modified cup set. The 3/32" cup set, we put them far away allready, before the start building. On a RV there is no 3/32" AN470 universal head rivet.
The rivet fits so far onto the cup set:
Now two questions:
- Build on, no replacemnt of the rivets?
- Redo with another cup set?
-Build on, but with a new rivet set?
For sure I will contact the manufactur of the cup set too.
Thanks for any inputs.
I'm supporting two buddys during the start of their RV-7A project.
They showed me the first rivet results on the real parts ... ok, shop head looks very good, but what catch my eye was this:
Riveted with a pneumatic squeezer, not with a riveting-gun. The ring you can see on EVERY rivet.
The cupset is also pressing at the outisde of the rivet head. Ok, sometimes, when you hold it not absolutely perpendicular to the surface, you get a mark, but only about 1/4 of the diam. and not a full ring completely around!? On my plane and another buddys plane, we could not found such a ring on our rivets
This is what they are using:
Top row from left to right is a 3/32" & 1/8" cup sets; 1/8” modified cup set. The 3/32" cup set, we put them far away allready, before the start building. On a RV there is no 3/32" AN470 universal head rivet.
The rivet fits so far onto the cup set:
Now two questions:
- Build on, no replacemnt of the rivets?
- Redo with another cup set?
-Build on, but with a new rivet set?
For sure I will contact the manufactur of the cup set too.
Thanks for any inputs.
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