Thread Tools Search this Thread Display Modes
Old 07-22-2009, 04:24 AM   #15
Rivet Monster
wahoonc's Avatar

1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
Join Date: Jun 2003
Posts: 7,174
Images: 40
Originally Posted by AgPnut View Post
I'd love to hear more about your sheet metal experience--that's what I'm trying to gain. I've worked alot with aluminum (sounding rockets, airships, and lightweight structures), but my experience is limited to machining, welding, bending, and brazing.

In your experience have you ever done rolled edges (where a flap, say 1/4" or 1/2") is folded over flat to make a cleaner, stiffer, and safer (in terms of cuts) edge? I'd really like to learn how to do that without using a brake.
That would be known as a hem. Biggest issue with hemming aluminum is that it likes to crack or craze when folded over, especially in the thicker sheets. I have seen small hand tools that will deburr and put a small hook edge that will keep the front of the sheet from cutting you. I believe at one time AS used to put a small "extrusion" on the edge of the sheet to stiffen it. I looked like a bead. That will have been done on either a forming machine or possibly with a hand tool. I have an ECKO(sp) Bender that will roll a brake on anything it will fit on, especially useful on curved pieces. However it is not an inexpensive tool. IIRC I paid over $500 for the one I have.


__________________ many little time...
Why are we in this basket...and where are we going
wahoonc is offline   Reply With Quote
Old 07-22-2009, 04:31 AM   #16
Rivet Master
Ganglin's Avatar
1971 27' Overlander
Central , Ohio
Join Date: Jun 2006
Posts: 2,365
Images: 13
Originally Posted by Aerowood View Post
I've done aircraft sheet metal since 1975. Everything you are proposing is doable but replacing the exterior skin with 3003 from the 2024-T3 is going to produce less then steller results. At a mimimun you should use the 6061-T6. The 3003 is so much softer then the TEMPERED 2024 that even with minor pressure, wear and tear, and the riveting process, the 3003 is going to dent, distort and generally look like S%#T in short order. save the untempered alloys for the belly skin etc. Folding the edge if metal over is called Hemming and really does require a brake to look professional. It cannot be done with 2024-T3 unless the aluminum is annealed first.
Aerowood - I have a minor repair to do around the steps on our 71. The original wrap material was 3004 .025. I found a "deal" on 3003 .032 at a local scrap yard that has aluminum coming out their ears ($38 for a 4 x 12 sheet). At some point two sections of side wrap will be replaced and, at that price, I'm planning to stock away enough to eventually replace the entire pan. Would you recommend anything different before I buy the rest of the stock..... Thanks

Ganglin is offline   Reply With Quote
Old 07-22-2009, 09:16 AM   #17
Rivet Master
Aerowood's Avatar

1971 21' Globetrotter
Arvada , Colorado
Join Date: May 2006
Posts: 2,881
Sounds like a fantastic deal. Whish I were closer as I would race you to the dealer. I still need three 12's for my interior. The cheapest I can find it in the Denver area is 98 per sheet. I would not have any problem doing what you are planning. Go for it.

Aerowood is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Greenball 15" alloys? truckasaurus Wheels, Hubs & Bearings 28 10-25-2015 12:39 PM
Skin replacement Ken J Ribs, Skins & Rivets 292 05-29-2015 09:47 PM
Sealing exterior skin panels with Lizard Skin BB 55 Bubble Leaks - Weatherstrips, Gaskets, Caulks & Sealants 15 11-21-2006 04:50 PM
'65 OL skin ronmcor 1966 Overlander 1 11-11-2004 06:51 PM
polished skin talmage Cleaning, Stripping & Polishing 4 02-15-2004 08:46 AM

Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:54 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.