Panther Sport Aircraft Forums

Thanks for the info all!

Also make sure that the stem has broken off in the rivet head and not pulled through.

Ken

Panther #3

About the only way to inspect pulled rivets is make sure there are no cracks on the expanded bulb area. Also, make sure the bulb is squeezed against the skin tightly. And finally, like any rivet make sure there are no gaps between the material, and the head is tight against the skin.

Hi Scott,

IMHO maybe the other rivets were pulled using too high PSI and the hand pulled one is appropriate. Right or wrong, I typically lowered my air pressure until the pneumatic riveter would just barely complete the process. Having the pressure too high may be aggressively pulling the mandrel further into the material before separation. Consider lowering your pressure even further below 40. They may look more like your hand pulled rivet. Adjust the PSI as needed for the various rivet types throughout your build.

Will

Please forgive the ignorance of this post... When using driven rivets there are quantifiable and measurable ways to check the quality. However, I'm not finding a lot of information on how to tell if a pulled rivet was properly done. I've used pull rivets before but never on anything that I was worried about 'getting it right' on. so never really cared what they looked like.

So, my question is how do you tell if you have pulled the perfect rivet?

I pulled a few on some scrap at various pressures and one by hand. This is what they look like:

https://www.dropbox.com/s/x32s5jt6hnsqi ... s.jpg?dl=0

The hand pulled rivet doesn't look like it pulled far enough. I don't see much difference between the others.

Thanks for any input.