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Pretty cleaver, here is a few pics of a radius bender I made for my brake, it was fairly easy and worked well. I think it is 7/8" radius. It snaps right onto the nosebar.
That's a nice, simple looking die, Burninbriar. I've made some dies for my brake too, as we're always needing to form different contours. I think we also did a 7/8" radius and I know we've done some 10 ga. stainless on it.
I'll try to remember to snap some pics.
It takes some thought and time, but there's nothing like being able to form it up in-house.
Looks like you're taking your time to get it right. That was a good idea to do the fibreglass release. We do a lot of that for aero/body work. Looks like you're getting good use out of your CNC. Thumbs up and good luck with the rest of the project.
I wanted a fairly sharp/even bend. Since the piece I was bending was 1/4" on the edges and 1/8'' in the machined areas and I was bending right along side gauge openings I didn't want to distort, I played it safe & got the aluminum hot enough to be pliable. 1/4'' plate aluminum is a little beyond what this brake is rated for. I put a fair amount of pressure on it and then heated the plate until it gave.
I use to have a chart that told what thickness of different alloys you can bend with a brake based on its mild steel rating but I can't find it anywhere. It was just approximation anyway but still interesting. I think 16 gage mild steel rated will handle 20 gage stainless and probably 14 or 12 gage soft aluminum. I wish I could find the chart.
To all who contribute to this board.
My sincere thanks , Pete.
Westinghouse 300 amp AC stick
Miller Syncrowave 250
Hexacon 250 watt solder iron