I riveted my left leading edge over the past couple of days. I ended up drilling out about 10 rivets overall that I wasn't happy with. I also used 4 oops rivets as some of the holes got a little big.
So this led me to an interesting observation. I was looking at the mil-spec for a 3/32 rivet. The max hole tolerance is .103. I measured my untouched dimpled holes and they were literally already at the max tolerance. I reamed them with a #40 reamer and dimpled with a standard cleaveland dimple die on a c-frame. So since they're already starting at max tolerance, anytime I drill out a 3/32 AN426 rivet, the hole is going to be out of spec.
What I typically do is just use a longer rivet, plump it a bit with a squeezer, and then set it with a bigger shop head. I'm wondering if I should start match drilling with a #41 bit and see if that helps.
Anywho, I thought it was an interesting observation.
So this led me to an interesting observation. I was looking at the mil-spec for a 3/32 rivet. The max hole tolerance is .103. I measured my untouched dimpled holes and they were literally already at the max tolerance. I reamed them with a #40 reamer and dimpled with a standard cleaveland dimple die on a c-frame. So since they're already starting at max tolerance, anytime I drill out a 3/32 AN426 rivet, the hole is going to be out of spec.
What I typically do is just use a longer rivet, plump it a bit with a squeezer, and then set it with a bigger shop head. I'm wondering if I should start match drilling with a #41 bit and see if that helps.
Anywho, I thought it was an interesting observation.
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