agoessling
I'm New Here
I was riveting some of the HS ribs to the spar this evening and ran into some separation issues. The rib flange sat flush with the rivet in place before riveting. It also sat flush after giving it a few taps to swell the shank. However when I went to fully form the shop head, the rib flange pulled away from the spar ~0.006". These were some of my better rivets in terms of the quality of the shop and manufactured head, but twice I had the same separation problem. I read that too low pressure can be a cause of this so I increased the pressure on the mini-regulator until it was just on the edge of controllable for me (Here the rivet was being set in less than or equal to one second). This seemed like it might have slightly improved the separation distance, but not enough. I would have liked to put the manufactured head on the rib flange but that would require an offset set so I put it on the spar.
Any ideas what might be causing this or how I can improve it? Should I replace?
Images below:
Any ideas what might be causing this or how I can improve it? Should I replace?
Images below: