|
Posted by Bob La Londe on July 15, 2008, 11:53 am
Please log in for more thread options
Ok... there are obviously sheet metal brakes out there to do this, but the
price gets up there pretty quickly. I was wondering if it would be
practical bend some small pieces of aluminum in my hydraulic press by
positioning them between a couple pieces of steel angle iron or perhaps
making some "special" angle with a sharp inner corner or rounded outer
corner to better match the two pieces and get a more uniform bend. Not a
lot of work this way. Just some simple one off stuff.
The second part of my wondering, and hence the cross post, is would this
result in to much contamination of the aluminum for good quality welding?
Bob La Londe
http://www.YumaBassMan.com
|
|
Posted by Jon Elson on July 15, 2008, 12:04 pm
Please log in for more thread options
Bob La Londe wrote:
> Ok... there are obviously sheet metal brakes out there to do this, but
> the price gets up there pretty quickly. I was wondering if it would be
> practical bend some small pieces of aluminum in my hydraulic press by
> positioning them between a couple pieces of steel angle iron or perhaps
> making some "special" angle with a sharp inner corner or rounded outer
> corner to better match the two pieces and get a more uniform bend. Not
> a lot of work this way. Just some simple one off stuff.
This is called a press brake, and is quite common.
> The second part of my wondering, and hence the cross post, is would this
> result in to much contamination of the aluminum for good quality welding?
If the surfaces of the angle are clean and smooth, it shouldn't
be any problem. Of course, only certain alloys weld well.
Don't try to bend 2024, either, without annealing first, or it
just breaks.
Jon
|
|
Posted by Ed Huntress on July 15, 2008, 12:24 pm
Please log in for more thread options
> Ok... there are obviously sheet metal brakes out there to do this, but
> the price gets up there pretty quickly. I was wondering if it would be
> practical bend some small pieces of aluminum in my hydraulic press by
> positioning them between a couple pieces of steel angle iron or perhaps
> making some "special" angle with a sharp inner corner or rounded outer
> corner to better match the two pieces and get a more uniform bend. Not a
> lot of work this way. Just some simple one off stuff.
This is the way most high-volume bending is done in production -- albeit
with fancier tools. The female tool is usually positioned with the angle at
the bottom, making a V-shape as you look at it from the side of the press.
The male tool -- the mating V -- is positioned on the ram.
>
> The second part of my wondering, and hence the cross post, is would this
> result in to much contamination of the aluminum for good quality welding?
>
> Bob La Londe
> http://www.YumaBassMan.com
>
>
>
|
|
Posted by Jim Wilkins on July 15, 2008, 1:01 pm
Please log in for more thread options > ...I was wondering if it would be
> practical bend some small pieces of aluminum in my hydraulic press by
> positioning them between a couple pieces of steel angle iron or perhaps
> making some "special" angle with a sharp inner corner or rounded outer
> corner to better match the two pieces and get a more uniform bend. =A0 ..=
.
> Bob La Londehttp://www.YumaBassMan.com
Unless you reinforce the angles they will bow and the bend in the
aluminum will be uneven.
For a few thin pieces a better way is to screw one angle to the edge
of a heavy plank and clamp the aluminum against it with another angle,
then make the bend with a rubber hammer.
|
|
Posted by Jim Wilkins on July 16, 2008, 10:37 am
Please log in for more thread options > ...
> For a few thin pieces a better way is to screw one angle to the edge
> of a heavy plank and clamp the aluminum against it with another angle,
> then make the bend with a rubber hammer.
I have a lot of aluminum to bend so I made some hinges to join the
angle and channel stock I had been hammering on. The grey color is
epoxy paint to protect the finish on the siding. The hinges are on
short bolt-on sections, allowing the brake to be shortened for heavier
stock.
http://picasaweb.google.com/KB1DAL/HomeMadeMachines/photo#52138956323582764=
34
I showed it to a neighbor who then told me he had a Tapco siding brake
I could borrow.
Jim Wilkins
|
| Similar Threads | Posted | | Another metal bending crosspost | July 16, 2008, 1:27 am |
| OT tube bending | April 23, 2006, 6:55 am |
| BENDING TUBING | September 18, 2008, 12:06 am |
| Expanded metal | June 18, 2008, 12:48 pm |
| ANYONE EVER FOAMED THEIR METAL BUILDING THEMSELVES? | March 16, 2007, 8:50 pm |
| Welding zinc pot metal | March 24, 2007, 9:08 am |
| metal video group | October 11, 2007, 6:00 am |
| Slight metal content | March 21, 2008, 2:35 am |
| Filler Metal Education | March 24, 2008, 11:07 pm |
| Base Metal (Dilution) | May 5, 2006, 11:16 am |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
> the price gets up there pretty quickly. I was wondering if it would be
> practical bend some small pieces of aluminum in my hydraulic press by
> positioning them between a couple pieces of steel angle iron or perhaps
> making some "special" angle with a sharp inner corner or rounded outer
> corner to better match the two pieces and get a more uniform bend. Not
> a lot of work this way. Just some simple one off stuff.