Not sure what the radius is..looks like 7 or 8mm.....Not sure if you are trying to manually bend this or if you have a pneumatic/hydraulic bender (similar to what is used in automotive shops to bend exhaust pipe).....I believe the key is to make sure that the tubing you are bending is in a soft state (annealed)....usually the outside bend area is supported and a mandrel is slowly pushed into the bend area....gotta lube the parts to reduce the friction....If manually bending...then the sand method or an awfully large bend radius is required. |