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Hey guys, I have a Woodward fab manual tube bender and as I get to about 70 degrees the tube starts to “flatten” and come detached from the die. I did realize afterwards that the screw to tighten onto the tube was loose and the tube was sliding in the collar. Could this be the cause? Don’t want to continue wasting material. Tube is 1.75- .095 wall
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That type bender is usually fine for bends - however, if the wrong die set is used the tube isn't correctly supported and WILL deform- are you using the correct size for the pipe?
I don't know if the loose clamp would have any affect - only one way to find out, pending above comment.
Yes they are 1.75 dies, they fit pretty snug. However I have read you shouldn’t lube the round die, just the follower die. I lubricated both. Could that be a reason?
TBH, I never lubricated either, that I recall, so I have no idea.
Anyone?
I think I was sent either pipe dies, or just faulty tube dies. As you can see a gap around the tube.
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That would do it! What size is stated on the dies, and what is the actual measurement of the pipe - there is definitely a mis-spec' somewhere. The edge of the dies should be snug to the wall of the tube.
Tubes are measured on the outside diameter, pipes are measure on the inside - which sounds simple, but there is a huge range for wall thicknesses. That's why the dies should match the outside diameter.
Been a while, got it sorted?
Yes I was sent a new die and everything works perfectly now. First die was machined out of specs
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Dear Alex
It seems that the first dies sent to you are for pipes and you are using round tubes to bend. Sometimes we call the round profile tubes (pipes) which technically wrong because the round tubes sizes are measured by OD and the wall thickness. But the pipes measured by ID.
Regards
Ebrahim
Hi there everyone, just jumping on here to get some advice. Wanting to tube front my civic clubman which has been in a previous accident and I have my own hydraulic pipe bender (not a tube bender). Any material suitable I could use for this as I have ½ inch increment pipe dies only ½ to 2 inch.
PS. New to this, budget build haha