6061-t6?
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RE: 6061-t6?
I just tried to make a set out of 3/16" 60-61. Ordered it, cut it out, cleaned it all up, and when I bent it in the brake, the bends had cracks on the outside radius. It went into the scrap pile.
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RE: 6061-t6?
6061 - t6 is the cheap run of the mill aluminum alloy with a neat sounding name. I'm a machinist and thats what my customers spec for cheap disposable parts. Check with "Metal Supermarkets" they are franchised around the country and usually have a good selection or look in the yellow pages and call a local aluminum supplier. Ask for the order desk and start asking questions about alloys, they'll help or get you to someone who can tell you what a good alloy is and then ask where to get what you want.
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RE: 6061-t6?
ORIGINAL: marzo91
I just tried to make a set out of 3/16" 60-61. Ordered it, cut it out, cleaned it all up, and when I bent it in the brake, the bends had cracks on the outside radius. It went into the scrap pile.
I just tried to make a set out of 3/16" 60-61. Ordered it, cut it out, cleaned it all up, and when I bent it in the brake, the bends had cracks on the outside radius. It went into the scrap pile.
I know there is a spec for each type of aluminum for bending. For example I know that 2025 can be bent no sharoer that 2x its thickness, or in other words any bend's radius must be at least 2 times the thickness of the metal. I do not know the spec for 6061 but it should be easy to determine.
TF
#9
RE: 6061-t6?
6061-T6 is good aluminum, but it is hard to bend because if is already tempered. To get a good bend in 6061, your bend radius should be a minumum of 2X the material thickness, 3X if you bend to 90 deg. Even then you will see stretch marks.
You can go to www.mcmaster.com to order aluminum if you do not have a local sullpier. 6061 is plenty for most rc planes.
You can go to www.mcmaster.com to order aluminum if you do not have a local sullpier. 6061 is plenty for most rc planes.