RudiGreyling
Well Known Member
Hi Everyone,
I have a query how to countersink small radius pipes as used on the counter-balancing pipe on the rv7 ailerons for flush rivets. I searched my 2 sheet metal construction books but nothing on flush countersinking on pipes.
When one countersink the pipe perpendicular the result is an oval countersunk hole.
The oval hole has 2 diameters: a short one and a long one.
How deep should I countersink the pipe then?
1) So that the rivet head matches the Big Diameter i.e. a small oval hole: which means the long side of the oval will fit the rivet flush, but it will stand out i.e not be flush on the short side of the oval?
OR
2) So that the rivet head matches the Small Diameter i.e. a big oval hole: which means the short side the oval will fit the rivet flush, but it will be to deep on the long side of the oval?
I hope this makes sense...If not I?ll see if I can draw it and attach a picture to explain it better.
Thanks in advance,
Kind Regards
Rudi
I have a query how to countersink small radius pipes as used on the counter-balancing pipe on the rv7 ailerons for flush rivets. I searched my 2 sheet metal construction books but nothing on flush countersinking on pipes.
When one countersink the pipe perpendicular the result is an oval countersunk hole.
The oval hole has 2 diameters: a short one and a long one.
How deep should I countersink the pipe then?
1) So that the rivet head matches the Big Diameter i.e. a small oval hole: which means the long side of the oval will fit the rivet flush, but it will stand out i.e not be flush on the short side of the oval?
OR
2) So that the rivet head matches the Small Diameter i.e. a big oval hole: which means the short side the oval will fit the rivet flush, but it will be to deep on the long side of the oval?
I hope this makes sense...If not I?ll see if I can draw it and attach a picture to explain it better.
Thanks in advance,
Kind Regards
Rudi
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