I was not happy with the smaller and larger hand tools for setting rivnuts and during the build of the tanks I had some spinning rivnuts which is annoying to fix. So time for improvement.
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Category: Technical
Rivet shear / tensile test
While sanding the excess resin with micro from the rivet heads you have to be careful to not remove any aluminium from the rivet.
Removing just a tiny bit is done easily, I measured on a test rivet about 0.1/0.2 mm.
This doesn’t seem to be much but will it impact the strength of the rivet?
For educational purposes I did some shear and tensile tests with the 3.2 and 4.0 mm rivets.
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Torque vs tension
After digging a bit more into bolts and nuts a learned that torque isn’t tension.
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Tension test AN3 and NAS6603 bolts
I was curious about how strong the aviation grade bolts are. With help from the University in Delft at the faculty of Aerospace Engineering I did some tension tests.
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