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Old 10-30-2012, 07:14 PM   #1
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Use large head rivets on interior?

Deciding whether to use regular 1/8 pop rivets or 1/8 large flange rivets on the interior.

Either way would probably be OK, but since I'm only going to do this once, and soon, I'm looking for any advantage...

Installing new aluminum to the interior; 3015 or something like that alloy .040 sheets.

Thought is to reduce the appearance of indentation where the rivets are attached. Concern is that large flange rivets will look goofy.

Thoughts?

Thanks in advance.
-Dan
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Old 10-30-2012, 08:28 PM   #2
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Guess it depends on look you want. Would think if you want an industrial look the flange rivets would be ideal. Along this line more attention to spacing will be needed with the flange rivets as they will be more noticeable. Nothing looks worse than a line of bolts or rivets that are randomly spaced - but some folks think I'm a little anal retentive. I work in an old industrial facilities and fascinated with attention to detail that workers put into building these facilities. Little things like uniformly offsetting conduit couplings when there are multiple parallel runs of conduit. These days it all gets thrown in a cable tray - but I digress.
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Old 10-30-2012, 08:42 PM   #3
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I have given rivet spacing some thought. I was thinking that when I fit the piece I could mark at the top and bottom the center of the ribs, then lay the piece down and pop a line then use a tape to measure equal distances and mark with a the tip of a marker where the rivets will go.

The concern with this is that the ribs may not follow the same "line" when the piece is curved as it does when the piece is flat. I'm going to have to be very careful with that.
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Old 10-31-2012, 10:09 AM   #4
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I guess I would use the standard sized flange rivets. I used large flange rivets on my belly pan, and they really stand out. There are the folks that say that the interior skins add structural support to the shell, but I am thinking that with the way my original skins were installed, the rivets did little more than hold the sheets in place.

Are you using aluminum with some kind of clear coat, or just raw sheet (that will show finger prints, etc.)?
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Old 10-31-2012, 12:21 PM   #5
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What I have is raw sheet aluminum without a clear coat. Is there something that I can spray on them?
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Old 10-31-2012, 09:47 PM   #6
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I spoke to the factory, and they told me that the aluminum the use in the interiors is the same as the exteriors, and it has a clear coat that is bonded to it at the mill. Everything I hear is that it is very difficult to get a clear coat to stick to the bare aluminum because of the lack of a primer. Usually these discussions are about exterior aluminum, so getting clear coat to stay on interior aluminum might be easier without the weather and UV. I have yet to find a source for the factory coated stuff--thought you might have.
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Old 11-01-2012, 03:57 PM   #7
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I hadn't thought about fingerprints and what-not until you mentioned it.

Googled some this afternoon. Anodizing seems to help aluminum out in a number of different ways.
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Old 11-01-2012, 04:13 PM   #8
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Here is a link to Aircraft Spruce and a tool called a rivet spacer. Other sources have them as well.
ADJUSTABLE RIVET SPACER from Aircraft Spruce
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Old 11-01-2012, 04:28 PM   #9
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That will do the trick. Thanks.
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Old 11-01-2012, 04:59 PM   #10
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I picked up some 5000 series from Aircraft Spruce a couple of weeks ago and meant to pick up that spacing tool while I was in the store. Completely forgot when they handed me a bring printed catalog - this is the MCMaster Carr of airplanes. Well now I have about a dozen flags on various pages of neat toys and tools. Calling them in the morning as I'll be back in Atlanta Saturday.
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