Getting Annealed Angle to "lay" Flat

Anything to do with mechanical, construction etc

Getting Annealed Angle to "lay" Flat

Postby JohnF » Wed Feb 15, 2006 11:01 am

I put the aluminum top on my Cubby and added the alum. angles to 'tie' in the top and sides. I had very carefully annealed the angles and they were fairly easy to get in place. The "problem" is that the side edges of the angle would bow out a bit when the angle was bent, and while I could easily put them down with the big rubber hammer I never could get them perfectly flat. The distortions are minor but the light reflection from these small imperfections make the angle look bad. Is that normal? I am going to live with it I suspect.
JohnF
Donating Member
 
Posts: 88
Images: 5
Joined: Wed Sep 21, 2005 7:31 pm
Location: Salida,Colorado

Postby Bandit » Wed Feb 15, 2006 12:44 pm

I guess that the angles have caused the aluminum to wave or ripple. This becomes more of a problem as the radius gets tighter. You could eliminate the high spots with sanding, but this will not help with the low spots.
Just my thoughts!
:thinking:
First Metal Cut 02/11/06
Complete! (Almost) 08/22/06
Looking for a trip in the SPRING!!!!
Not Up to Testing the Heater!!!
Thanks for all the HELP!!!!
User avatar
Bandit
Donating Member
 
Posts: 207
Joined: Tue Dec 06, 2005 12:25 pm
Location: McMinnville, TN

Postby PaulC » Wed Feb 15, 2006 4:38 pm

I had the same problem when I did mine. Remedy-- 1 block of 4X2 and a hammer. It did not completely remove the bumps and dips but it minimised it to the point that it is hardly noticeable.
Cheers
Paul :thumbsup:
Time is the only real capital we have. Money you can replace but time you cannot.
User avatar
PaulC
3rd Teardrop Club
 
Posts: 4392
Images: 36
Joined: Mon May 24, 2004 7:27 am
Location: Laura, Souther Flinders Ranges, South Australia
Top

Postby Jim Marshall » Wed Feb 15, 2006 6:29 pm

Which works easier, the annealed aluminum or the soft aluminum? We are getting close to that part of our build.
I started out with nothing and I still got plenty left.

VOL-N-TEAR
User avatar
Jim Marshall
The 300 Club
 
Posts: 343
Images: 63
Joined: Wed Sep 28, 2005 12:31 pm
Location: Chattanooga, Tennessee
Top

Postby toypusher » Wed Feb 15, 2006 7:43 pm

Jim Marshall wrote:Which works easier, the annealed aluminum or the soft aluminum? We are getting close to that part of our build.


If you anneal it right, then they are about the same. The deadsoft is alot less work and it is always the same. With annealling, one piece may be softer than another. JMO!
User avatar
toypusher
Site Admin
 
Posts: 42832
Images: 324
Joined: Fri Jan 28, 2005 12:21 pm
Location: York, PA Area
Top

Postby D. Tillery » Wed Feb 15, 2006 8:12 pm

If you are hammering on it much you will "work harden" it and it will need to be re-annealed.

It is a real challenge to get it perfect. You might try bending it tighter than you need it on the first bend. Then open it up a bit as you attach it to the trailer. You also could try making a sacrificial wood template and heat, bend and hammer as you go. Keep a wet rag handy to put out the template.
D. Tillery
User avatar
D. Tillery
Teardrop Master
 
Posts: 266
Images: 9
Joined: Thu Jul 22, 2004 5:47 pm
Location: Providence, still a Texan, RI
Top

Postby seahorse » Wed Feb 15, 2006 8:17 pm

One thing I found out about anealed metal is........if you bend VERY SLOWLY, it seems to help......
User avatar
seahorse
Donating Member
 
Posts: 143
Images: 39
Joined: Mon Jan 09, 2006 2:45 pm
Location: northeast Ohio
Top

Postby madjack » Wed Feb 15, 2006 8:45 pm

...we made a bending jig, which allows us to work on the horizontal instead of the vertical which makes it much easier...it'll also allow you to use more force with that BFH...bending slowly and hammering whild you bend also will help...dead soft will beat annealed just about hands down everytime like the man said, it is much more consistent...always keep in mind that the point at which AL anneals and it melts is only about an opps apart
madjack 8)
A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila.
most all personal problems can be solved with the proper application of high explosives
User avatar
madjack
Site Admin
 
Posts: 15099
Images: 177
Joined: Thu Dec 02, 2004 5:27 pm
Location: Central Louisiana
Top

Postby asianflava » Wed Feb 15, 2006 10:47 pm

madjack wrote:...we made a bending jig, which allows us to work on the horizontal instead of the vertical which makes it much easier


Got any pics???? We Luv Da pics!
User avatar
asianflava
8000 Club
8000 Club
 
Posts: 8410
Images: 45
Joined: Mon Aug 02, 2004 5:11 am
Location: CO, Longmont
Top

Postby madjack » Wed Feb 15, 2006 11:02 pm

asianflava wrote:
madjack wrote:...we made a bending jig, which allows us to work on the horizontal instead of the vertical which makes it much easier


Got any pics???? We Luv Da pics!


I'll take some next time I am in the shop however it is just a copy of the door that has been thickened to 1.25"s to accomodate the trim...we used an insert type RV trim on the edges which was dead soft and on the galley side walls we used some 3/4X1/4 channel that was annealed and bent easily on the gentler curve...we aslo have a jig to bend the sheet that will go along the side of the side box where it meets the curve of the camper body
A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila.
most all personal problems can be solved with the proper application of high explosives
User avatar
madjack
Site Admin
 
Posts: 15099
Images: 177
Joined: Thu Dec 02, 2004 5:27 pm
Location: Central Louisiana
Top

Postby Jim Marshall » Thu Feb 16, 2006 12:04 am

Thanks a bunch fellows, I for one really do appreciate all the great information. We are going with the deadsoft approach. Thanks once again for helping me make up my mind. :thumbsup:
I started out with nothing and I still got plenty left.

VOL-N-TEAR
User avatar
Jim Marshall
The 300 Club
 
Posts: 343
Images: 63
Joined: Wed Sep 28, 2005 12:31 pm
Location: Chattanooga, Tennessee
Top


Return to Teardrop Construction Tips & Techniques

Who is online

Users browsing this forum: No registered users and 0 guests