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spindowner
09-17-2014, 11:04 PM
I have to bend 1" wide strips of 1/8" steel flat stock to various lengths. I usually take my material to be bent to the barn and my oxy-acetylene setup. I heat the stock to red and proceed to make a bend with the metal held parallel to the horizontal axis of the jaws. Problems occur when you have to make several pieces and the bends have to be the same length. I have been trying to come up with a fixture that would fit on the vise jaws and would define the length of the bend. I've considered magnet stops but feel they would be unreliable. I could put pins in the faces of the vise jaws but don't want to compromise the vises integrity. I could use a piece of the 1/8" steel between the jaws to define the bend length but haven't come up with a reliable device. So thought I would ask for your help in solving my problem. Thanks Paul

boslab
09-17-2014, 11:51 PM
These might work
http://www.axminster.co.uk/adjustable-vice-jaw-benders
Mark

astroracer
09-18-2014, 07:05 AM
Cold bending to layout lines is going to be your best method. If you do a lot of this type of work a good hydraulic press and a Swag bender would be good investments. I do this kind of fab work for vehicle builds all the time and wouldn't even concider trying to do repetitive bends with the hot wrench.
These are some radiator mounts I bent up out of 2" x 3/16" strip stock. You can see the layout lines used for bending.
http://images45.fotki.com/v153/photos/5/904975/11214596/100_5306-vi.jpg
Here they are mocked up prior to welding. You can see they all had to be fairly similar to work well.
http://images107.fotki.com/v70/photos/5/904975/11217552/100_5343-vi.jpg
Mark

Tony Ennis
09-18-2014, 07:46 AM
There are a few tools out there made for bending strap stock. One is little more than steel dowels set into a steel plate. The other is similar to a sheet metal bender. Why are you using your vise?

olcop
09-18-2014, 09:02 AM
There are a few tools out there made for bending strap stock. One is little more than steel dowels set into a steel plate. The other is similar to a sheet metal bender. Why are you using your vise?

Tony,
Could you furnish name brands and/or sources for these? Would be much appreciated.
olcop

Rosco-P
09-18-2014, 09:06 AM
Look as the chinee copy of the Hossfeld bender sold by Horror Freight (and others). Will allow repetitive bends of flat, round, tubular material. Like all low cost chinee stuff, will require a little tuning.

vpt
09-18-2014, 09:39 AM
Someone posted this quick make it yourself tool awhile ago and I made one for myself. Comes in super handy for things like this.

http://imageshack.us/a/img341/1650/coot021.jpg

http://imageshack.us/a/img152/623/coot023.jpg

http://imageshack.us/a/img208/7634/coot024.jpg


http://weldingweb.com/showthread.php?172321-Metal-bender-first-try/page2

garyhlucas
09-18-2014, 07:19 PM
I bought a Harbor Freight bender about two weeks ago because we needed a bender to make hangers for stuff in the shop. It is not badly made, but has few drawbacks. One is that there isn't a wide assortment of bending dies like you can find for a Hossfeld. Also the round bending dies that come with it are a poor choice for accurate bending because they rotate. However we fixed that problem by drilling and tapping for a 1/2" bolt on center near one end. In use you let the bolt head rest against the metal on the side you want to hold a dimension on. Then when you bend the metal being wrapped will come from the other end. It also does not have the pointed dog tool, offset pins, long pivot pin, and pivot pins that are turned down. Those tools are hugely useful for bending hooks and such, so we have made the parts. It also comes with just one square bending block, and you really need two.

I'm still going to get a Hossfeld when one comes up at the right price and selection of dies. I would say I have probably bent over 20,000 pieces on one of the 3 hossfelds I have owned in the past.

spindowner
09-18-2014, 11:23 PM
There are a few tools out there made for bending strap stock. One is little more than steel dowels set into a steel plate. The other is similar to a sheet metal bender. Why are you using your vise?

I'm using a vise because its the only mounted adjustable clamping device I have. Thanks for the suggestions and information. I'm going to lookup that specialty vise that was discussed. Paul