Is it possible with a folding table to make a 150 x 50mm x 1200mm U shaped profile.
I want to make a deep shelf out o black tread plate. Know 1 fold with radius is fine, but not putting in a second.
Might need dressing over a mandrel like a cricket stump but would prefer a straight front.
So 150mm top and bottom with a 50mm deep section or face, ovet 1200mm long, 2mm thick ally probably. Will be mounted on hidden rod chemfix to wall.
Then crazy foamed.
What material?
If aluminium I'd be concerned about it cracking whilst being folded.
Aluminium, can be super skinny. As thin as 1mm.
I had some 3mm ally bent into boxes then tig welded on the edges way over my skills and tooling but easy for the fab shop
Edit * not sure how narrow the edge of the press was but I've seen them make 70mm U shape stuff in mild steel
Probably easier using a press brake rather than a folder (esp if steel). Any big fab shop should have one.
You can't usually press anything bigger than the smallest dimension on a press brake because when putting the second bend in the material will hit the top tool way before it gets to ninety degrees.
You can use swan neck tooling in the top of the press brake
but not for the profile you require.
You're right - I'd misread where the 50mm bit was. Sorry.
I can ask the guys at work tonight how to do it
I work in a large aluminium fabrication factory with big machines, and the guys there say they couldnt do it
Thanks. Didn't think it was possible. Might get 2 peice of 150x 50 and bond on the overlap with a couple of lost head rivets.
Why do you need a full return?
150x50x20 would be just as rigid with an upstand to fix to the wall?
A bit more elaborate and probably beyond the scope of DIY but you can laser cut fold lines into aluminium / sheet materials so you can then bend by hand or with simple box folders.
I did it once on a work project but I have Solidworks and access to industrial laser cutters - worked well.
https://inhabitat.com/sheet-metal-origami-cuts-down-on-energy-materials/
https://www.sculpteo.com/blog/2017/03/15/metal-laser-cutting-how-to-fold-sheets-of-metal-easily/
A bit more elaborate and probably beyond the scope of DIY but you can laser cut fold lines into aluminium / sheet materials so you can then bend by hand or with simple box folders.
You could quite possibly rout a score line on the back of it following a straight edge..
I'd not use my best cutters obvs but you could.
I guess it's pretty thin stock but could be an option perhaps.
