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Old 02-10-2014, 05:43 PM   #101
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Re: Senza Legno, Senza Pontilli

So what thickness of metal do people like to skin with?, talking sheet metal distributors here some recommend 18ga, some say 20 ga will be fine
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Old 02-11-2014, 11:16 AM   #102
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Re: Senza Legno, Senza Pontilli

I agree ...try to match what you have around the windows. And if you are riveting or welding directly you can avoid "oil canning" by pre-heating the sheets and keeping them around 125* (about the same as a hot shower) until secured at several points. A small propane torch is more than adequate. Never put sheet metal on "cold". The first time it warms up and expands you will not like what you see.
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Old 02-14-2014, 10:44 AM   #103
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Re: Senza Legno, Senza Pontilli

I've decided to go with .040" aluminum for skinning , what do you think of these rivets?

http://www.rivetsinstock.com/rivets/bli ... ivets.html

I know I need to but a barrier between the 2 different metals for corrosion purposes
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Old 02-14-2014, 12:58 PM   #104
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Re: Senza Legno, Senza Pontilli

Steel & aluminum need to be fully insulated from one another. Any area of contact is essentially a battery and both will oxidize very rapidly.
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Old 02-23-2014, 11:04 PM   #105
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Re: Senza Legno, Senza Pontilli

Not a whole lot to report, I did get doublers installed over the ribs this weekend
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Old 03-09-2014, 01:52 PM   #106
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Re: Senza Legno, Senza Pontilli

Trying to work on the bus but between work & the rain not getting very far, just wondering tho would treating steel & aluminum with por 15 be adequate for protection between dissimilar metals?
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Old 03-09-2014, 09:29 PM   #107
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Re: Senza Legno, Senza Pontilli

Nat is absolutely correct. You need total isolation of dissimilar metals and the Butyl tape is one of very few solid solutions. Anywhere they come in contact you have electrolysis and very rapid destruction of both metals.
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Old 03-17-2014, 07:01 PM   #108
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Re: Senza Legno, Senza Pontilli

Well, I was welding in the supports for the fwd section & the wire feed stopped working on my welder, the drive wheel doesn't move & I can hear something clicking, any quick ideas?
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Old 03-17-2014, 07:28 PM   #109
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Re: Senza Legno, Senza Pontilli

Oh & it's a Lincoln 125
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Old 03-17-2014, 09:09 PM   #110
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Re: Senza Legno, Senza Pontilli

Well I'm on hold until I get it working again, as far as doing a good job welding I discovered that purchasing a auto darkening & adjustable shade helped a lot in being able to see my work , not saying professional grade but a co worker who is also a licensed welder here on aircraft said they looked good, I do need to practice welding thin materiel a little more
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