Hi folks,
I've got a question before I start bending aluminum the wrong way. 10-02 step 4 states to flute the frame halves. I have no trouble with the (obvious) advice that the humps go away from the skin surface, but I'm having trouble visualizing where to put flutes to flatten the frames.
With the frames laying flat such that the flanges point up, the webs of all of my frames are bowed somewhat aft. In my mind's eye, I feel like I need to stretch the flanges to make the outside perimeter longer. Since I can't stretch the outside web, that leaves fluting the inside web, but it's very short and I'm not sure that it can be fluted with any effect.
Please let me know if I'm overthinking the problem, or just let me know what worked for you.
Thanks in advance,
-dbh
I've got a question before I start bending aluminum the wrong way. 10-02 step 4 states to flute the frame halves. I have no trouble with the (obvious) advice that the humps go away from the skin surface, but I'm having trouble visualizing where to put flutes to flatten the frames.
With the frames laying flat such that the flanges point up, the webs of all of my frames are bowed somewhat aft. In my mind's eye, I feel like I need to stretch the flanges to make the outside perimeter longer. Since I can't stretch the outside web, that leaves fluting the inside web, but it's very short and I'm not sure that it can be fluted with any effect.
Please let me know if I'm overthinking the problem, or just let me know what worked for you.
Thanks in advance,
-dbh