I am struggling a little with this, I still have a couple of things to try out, but I figure I would put this out there to see if any of you metal shaping gurus can shed any light on my issue.
I am fabricating the exhaust tunnel area. The belly sheet metal, when in place, sits nice everywhere - except at 2a and 3a. To get this hump to sit down, I have to raise the sheet at the front. So, this means I have to either add a curve to the sheet as it falls to the firewall (4a), or do 'something' locally at the hump location (2a and 3a).
I did have the same hump issue at 1b, but I fixed that by forcing the sheet to a curved profile (1a).
The test material is 6061-t6 0.25, not the best temper for this, I gather, but it is what I had to hand. For the final piece, I plan on using something like 5052.
Any guidance would be appreciated.
I am fabricating the exhaust tunnel area. The belly sheet metal, when in place, sits nice everywhere - except at 2a and 3a. To get this hump to sit down, I have to raise the sheet at the front. So, this means I have to either add a curve to the sheet as it falls to the firewall (4a), or do 'something' locally at the hump location (2a and 3a).
I did have the same hump issue at 1b, but I fixed that by forcing the sheet to a curved profile (1a).
The test material is 6061-t6 0.25, not the best temper for this, I gather, but it is what I had to hand. For the final piece, I plan on using something like 5052.
Any guidance would be appreciated.
![20110610_065146_ramp1.jpg](https://proxy.imagearchive.com/815/8158bc6560a51d0622d418f6106b5917.jpg)
![20110610_065208_ramp2.jpg](https://proxy.imagearchive.com/8e4/8e479ebd8b23944acf8a78e3e6e08862.jpg)
![20110610_065227_ramp3.jpg](https://proxy.imagearchive.com/7fa/7faab824bff226ce8dbe73d9bae15b04.jpg)
![20110610_065254_ramp4.jpg](https://proxy.imagearchive.com/b8c/b8c16dc89dc03942ac942227b5c97524.jpg)