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Cool fab job today

Sycan

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Joined
Aug 5, 2015
Messages
414
Had an aluminum trailer in that shredded a tire at 70mph, just destroyed the back corner. Much custom fitting and I got it back pretty damn close to original. Rewired the lights and made a light box. Still not very good at welding aluminum but it is definitely getting better.

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rharman

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Apr 22, 2012
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SoCal
Looks good to me too. Was it a complete fab from scratch or salvaged what got blown off?
 
OP
S

Sycan

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Joined
Aug 5, 2015
Messages
414
Looks good to me too. Was it a complete fab from scratch or salvaged what got blown off?
I tried to salvage some, but ended up fabbing the whole corner from scratch. I wanted to try something I had read about, take the torch with a rosebud and start it just on acetylene, no oxygen. Coat what you want to bend with the soot from the torch. Then turn on oxygen and set the rosebud for normal heating. When the soot burns off clean you can bend. It works slick, just my pieces were too far gone.

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Kent_B

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Jul 4, 2013
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Location
MI
Thanks for sharing that tip. I learned something new today.
 
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fnieto

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Aug 27, 2013
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Tucson,Arizona
I tried to salvage some, but ended up fabbing the whole corner from scratch. I wanted to try something I had read about, take the torch with a rosebud and start it just on acetylene, no oxygen. Coat what you want to bend with the soot from the torch. Then turn on oxygen and set the rosebud for normal heating. When the soot burns off clean you can bend. It works slick, just my pieces were too far gone.

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Annealing, works very good so long as you don't get too close. I use this to form aluminum in various alloys. Temp sticks work well too. Nice job on the repair.
 

MBfreak

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Dec 10, 2010
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Location
Linkoping , Sweden
A tip from the Land Rover 1963 body manual, wrt straightening aluminium and how to get the right temperature. Goes for body panels of old Land >Rovers, so thickness less than a mm.
In order to remove the hardness whisch results in banging on a panel with dolly and hammer. Get hold of some beech saw dust. Heat the panel with a oxy/ace torch and rub the beach saw dust over the surface. When the saw dust starts to ignite , stop heating, let cool off and sheet is pliable and will not crack under bending or hammering.

Old school, I have used this method, works great.

Ola
 
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