DCat22
Well Known Member
Newbie riveting and dimpling questions... otherwise, all makes sense, and I actually like deburring. So, starting on my training kit and I had a few questions that I wasn't quite sure the answer to from reading around. No pics yet, but I can grab then tonight.
1. What is the best approach when putting a flush rivet through a dimpled thin skin and then into a countersunk thick piece (like an angle).
In the Vans material, and elsewhere here is "Drop a rivet in place on the flush material and then when it is flush with the dimpled surface go about another .005. Vans says "a few clicks" on the countersink."
When doing this last night...the dimple was still pretty far above sitting flat in the angle, with about a 0.020 gap in the metal next to it. I had to countersink (as an experiment) quite deeply to get the dimple to fully sit in the countersink. I'll have to look again, but I'm pretty sure this was about to the point of enlarging the hole in the angle.
Does this sound really wrong? If so, I'll get a step by step picture set of what I'm doing so its more clear..
2. What is the best way to handle a dimple that should not have been? (ie. if you dimpled the spot for a standard non-flush rivet by mistake.)
I did this on purpose to see what would happen...and then flattened out the dimpled area between two pieces of flat/polished steel in a vice. Seemed to work OK. But what is the proper method?
Thanks much!
1. What is the best approach when putting a flush rivet through a dimpled thin skin and then into a countersunk thick piece (like an angle).
In the Vans material, and elsewhere here is "Drop a rivet in place on the flush material and then when it is flush with the dimpled surface go about another .005. Vans says "a few clicks" on the countersink."
When doing this last night...the dimple was still pretty far above sitting flat in the angle, with about a 0.020 gap in the metal next to it. I had to countersink (as an experiment) quite deeply to get the dimple to fully sit in the countersink. I'll have to look again, but I'm pretty sure this was about to the point of enlarging the hole in the angle.
Does this sound really wrong? If so, I'll get a step by step picture set of what I'm doing so its more clear..
2. What is the best way to handle a dimple that should not have been? (ie. if you dimpled the spot for a standard non-flush rivet by mistake.)
I did this on purpose to see what would happen...and then flattened out the dimpled area between two pieces of flat/polished steel in a vice. Seemed to work OK. But what is the proper method?
Thanks much!