Inspection criteria for rivet manufactured heads
Inspection criteria for rivet manufactured heads
(OP)
Hi all,
I am trying to find out what the inspection criteria for solid rivet manufactured heads are. If we install a rivet on a cylindrical surface ( imagine a 2ft ID pipe 1/8 inch thick) the surface wouldn't be flat for the manufactured head to sit flat.
AC43-13b doesn't provide any criteria in such a situation.
is the gap under the manufactured head acceptable in this condition? if not what is acceptance criteria and the fix?
Thanks
I am trying to find out what the inspection criteria for solid rivet manufactured heads are. If we install a rivet on a cylindrical surface ( imagine a 2ft ID pipe 1/8 inch thick) the surface wouldn't be flat for the manufactured head to sit flat.
AC43-13b doesn't provide any criteria in such a situation.
is the gap under the manufactured head acceptable in this condition? if not what is acceptance criteria and the fix?
Thanks





RE: Inspection criteria for rivet manufactured heads
Generally, it is acceptable to have a gap between the rivet head/bucktail and a curved surface as long at the portion of the rivet which contacts the surface meets whatever standard you use for head/bucktail gapping.
If you weren't satisfied with that, you could machine an adapter (shim) to provide rivet support. Just be sure to take into account any fastener bending due to the shim.
RE: Inspection criteria for rivet manufactured heads
RE: Inspection criteria for rivet manufactured heads
RE: Inspection criteria for rivet manufactured heads
You do not say what rivet you are using, but most rivets will conform to that slight a curvature, I second what rb1957 has said, shoot some into a sample and see what they look like, see if you ,can, get a feeler gauge under the head.
B.E.
RE: Inspection criteria for rivet manufactured heads
The curvature is enough for us to stick a two thou feeler gage under the manufactured head.
RE: Inspection criteria for rivet manufactured heads
RE: Inspection criteria for rivet manufactured heads
Check out following for solid rivet installation criteria You need...
MIL-STD-40007 RIVETS, SOLID, INSTALLATION OF
BAC5004-1 (Boeing Spec)
Both have rational discussions and examples.
Regards, Wil Taylor