Arie
Well Known Member
Good day
I need to make the sharp downward bend in the longerons, but I have a few questions before I mess one up.
1. Do you need to off set the bend line ,to allow for a bit of a bend radius at the 28 1/4 mark ( the start of the downward bend). I think to clamp the longeron in my vice about 1/8 inch aft of where the sharp bend must be formed. I hope that the bend will then start slightly forward ( 1/8 of an inch) of where I clamp it.
2. I guess that you need to hit it with a rubber hammer as close to the vice as possible.
3. What happens to the vertical flange of the longeron as you bend down in the vice, the verical flange would then be in compression and surely the metal must go somewhere. Hopefully it will not cause a bulge at that point.
Maybe I am over thinking it?
I need to make the sharp downward bend in the longerons, but I have a few questions before I mess one up.
1. Do you need to off set the bend line ,to allow for a bit of a bend radius at the 28 1/4 mark ( the start of the downward bend). I think to clamp the longeron in my vice about 1/8 inch aft of where the sharp bend must be formed. I hope that the bend will then start slightly forward ( 1/8 of an inch) of where I clamp it.
2. I guess that you need to hit it with a rubber hammer as close to the vice as possible.
3. What happens to the vertical flange of the longeron as you bend down in the vice, the verical flange would then be in compression and surely the metal must go somewhere. Hopefully it will not cause a bulge at that point.
Maybe I am over thinking it?