A motorhome friend came to see me today with an interesting problem. He has the Vogue Diesel Pusher motorhome from the early '90's and had backed into a post and crunched the engine cooling louvers.
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The louvers were welded into a bracket then into a U channel frame and then welded TO the frame. I THINK the material was 5052 aluminum but it was pretty stiff, There was a turned and flattened lip on the outside. I spent a while thinking out to attack the problem and finally decided that I could cut the worst 3 in half and then cut them loose. After that, it was straight hammer and dolly work. The other bent ones were able to be straightened without removing them. Once everything was straightened, I TIGGED it back in place and cleaned up the welds with some Vixen files.
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My friend will have it soda blasted and then painted in the correct colors.