Ideally a shear/brake. but how many of us have one of those???
Me , nice big cast iron 4' Brown Boggs, hey it was cheap, but that doesn't help you Argentina
I'd use hand tools. its only .020, with good hand snips it will cut easily....but do get good ones, the cheap ones are just frustrating. Wise calls them patterns snips, Iíve found them to be good
If you want to get fancier and cut radii you can get left and right cutting aircraft (compound) snips
If you're just after straight cuts, you can't beat a good ol stomp shear, though it would be pretty cost prohibitive for just one project. That being said, I have a 36" Pexto shear that gets constant use.
At only .020", I would be awfully tempted to let the router have a whack at it using a single flute Onsrud bit like this: http://www.onsrud.com/Products.asp?A...1%3A12%3A14+AM
I have not tried this personaly, but .020 is awfully thin stuff. You would probably be albe to tell if it's a go or no in the first inch or so.
I would like to be able to cut 17 ga. SS sheet. I have been using a cutoff wheel on an angle grinder, but a cleaner, quieter method would be great. I have a shopbuilt throatless shear, but it is only capable of soft metals such as brass and aluminum. What type of material do the blades need to be made of? Hardness? etc?
Unabiker, one of the links you provided appears to work like a die grinder which I have:
All of those nibblers that I linked work like a punch. There is a little die that moves up and down an punches out a little chunk of material. When it's cutting, it will shoot out little toe nail shaped bits of metal.
I think the one you are talking about actualy goes in a drill. A die grinder would probably turn way too fast.
I've got this one: http://www.harborfreight.com/cpi/cta...emnumber=46061
It would easily cut that .020" sheet. You can also get a replacement foot and die if need be. It's not the highest quality tool in my arsenal, but at $29.99, it doesn't need to be either.
I'm not sure what material the blades on my Beverly shear are made of. If I had to guess, I's say probably hardened high carbon steel. That particular shear of mine is probably at least 50 years old. I think the blades' sharpness is more important than thier ultimate hardness.
I need to cut a 4foot x 2.5foot sheet of aluimum into several pieces. None of the pieces will have round edges. The aluminum is 1/4" thick. Im thinking of using a zipcut (grinder abrasive wheel) on a skillsaw. Would this be an okay route to go? It is the "free" route for me but if its not gonna work at all then ill have to do something different.
energy, I've never done this so check around first to make sure, but there lots of acounts of doing so with a table saw or skill saw with a regular carbide tipped blade - the main danger seems to be they give one hell of a kickback.