Go Back OFN Forums > Shop and Tool Talk > Benders and Bending

Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...


Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...

Reply
 
Thread Tools
  #1  
Old 10-16-2016, 12:27 AM
Scrambled's Avatar
Scrambled Scrambled is offline
Master Fabricator
 
Join Date: Jan 2010
Location: KY
Posts: 396
need bending help

I am needing to bend these steps for a ladder I need to build.

I am needing to plasma cut these out of diamond plate and then bend them.

Would it be easier to cut the parts and then weld the parts together instead of bending?


I have never made these before, so I need a good starting point.


Here are some pictures

Steve

http://i1113.photobucket.com/albums/...adder-step.jpg
http://i1113.photobucket.com/albums/...dder-Model.jpg

Last edited by Scrambled; 10-16-2016 at 12:32 AM.
Reply With Quote
  #2  
Old 10-16-2016, 10:13 AM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 337
Aluminum? What grade? Different grads have different bending characteristics aka bend radius. I make parts from cardboard then simulate the bending process to verify it's doable with my brake. Yes often it's easier to cut minimal parts and weld them.
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #3  
Old 10-16-2016, 03:14 PM
Scrambled's Avatar
Scrambled Scrambled is offline
Master Fabricator
 
Join Date: Jan 2010
Location: KY
Posts: 396
R.DesJardin-

Sorry about that. It is steel diamond plate. The whole ladder is made from mild steel.

Steel
Reply With Quote
  #4  
Old 10-17-2016, 07:45 AM
Graham08's Avatar
Graham08 Graham08 is offline
Master Fabricator
 
Join Date: May 2006
Location: Denver, NC
Posts: 1,700
You have an ironworker with a small press brake, right? You could do them in one piece if the flanges are wide enough to span the lower vee you need for the gauge of material you're working with. The last little tip on the flange might be a little tricky, but I think you could bend the vertical part of it first, then make the horizontal brakes. You would have a short horizontal weld where it meets the main step, and short vertical welds at the other two corners.

If the flange isn't wide enough, I would cut the vertical flange out of smooth steel the same gauge as your tread plate, bend them up separately, and weld on to the main step.

I always try to make stuff in as few pieces, with as little welding as possible...if it doesn't put the degree of difficulty over the top vs. cutting and welding.
Reply With Quote
  #5  
Old 10-18-2016, 09:22 PM
deaner's Avatar
deaner deaner is offline
Master Fabricator
 
Join Date: Jan 2013
Location: Northern Ohio
Posts: 435
If the flange is not wide enough to span the lower vee, you can place a larger/thinner piece that spans the vee, under the piece you want to bend, then bend the part. You will make a lot of scrap though, one piece of scrap for each small flange bend.
Reply With Quote
  #6  
Old 10-19-2016, 12:00 PM
12husky's Avatar
12husky 12husky is offline
Fabricator
 
Join Date: May 2006
Location: ES, Maryland
Posts: 84
On some pieces with complicated bend geometry, we will slot the bend line on the laser so it can be hand bent and then welded. This saves set up on the press versus true bends and saves jigging time versus cutting it all out individually.
Reply With Quote
  #7  
Old 10-19-2016, 06:02 PM
CarterKraft's Avatar
CarterKraft CarterKraft is offline
Master Fabricator
 
Join Date: Oct 2009
Location: DFW
Posts: 840
Quote:
Originally Posted by 12husky View Post
On some pieces with complicated bend geometry, we will slot the bend line on the laser so it can be hand bent and then welded. This saves set up on the press versus true bends and saves jigging time versus cutting it all out individually.
That's what I was thinking. Hand fitting all those loose pieces would suck.
You could make a simple bender with 1/2" plate jaws and a handle to stand the flanges up then buzz in the gaps with the hot glue gun.
Reply With Quote
  #8  
Old 10-19-2016, 10:12 PM
bullnerd's Avatar
bullnerd bullnerd is offline
Master Fabricator
 
Join Date: Apr 2008
Location: Jersey
Posts: 704
Can you share why you need a ships ladder?

Those things really complicate a simple task in my opinion.

Look at all those extra parts.
Reply With Quote
  #9  
Old 10-20-2016, 08:45 PM
Scrambled's Avatar
Scrambled Scrambled is offline
Master Fabricator
 
Join Date: Jan 2010
Location: KY
Posts: 396
I spent a few hours and tried the bending route. Gave up after a pile of scrap. I could not get them all the same. oops.

Did it the hard way. Cut all the shapes out on the plasma table, built a jig on the table and welded them together. It took about 4-5 hours.

Bullnerd- Simple-- it is what they wanted. Give them what they want, not what they need.


Steve
Reply With Quote
  #10  
Old 10-21-2016, 08:53 AM
bullnerd's Avatar
bullnerd bullnerd is offline
Master Fabricator
 
Join Date: Apr 2008
Location: Jersey
Posts: 704
That is true.
Reply With Quote
  #11  
Old 10-26-2016, 06:12 PM
Scrambled's Avatar
Scrambled Scrambled is offline
Master Fabricator
 
Join Date: Jan 2010
Location: KY
Posts: 396
Well here it is.

I get to install it next week.

Steve

Reply With Quote
  #12  
Old 10-27-2016, 07:23 AM
Graham08's Avatar
Graham08 Graham08 is offline
Master Fabricator
 
Join Date: May 2006
Location: Denver, NC
Posts: 1,700
Final piece looks good! That's much bigger in real life than the drawing made it look.
Reply With Quote
  #13  
Old 10-27-2016, 08:56 AM
bullnerd's Avatar
bullnerd bullnerd is offline
Master Fabricator
 
Join Date: Apr 2008
Location: Jersey
Posts: 704
WOW! Very nice Steve.

I love coming here and seeing the stuff you guys can do!
Reply With Quote
  #14  
Old 10-27-2016, 09:18 AM
CarterKraft's Avatar
CarterKraft CarterKraft is offline
Master Fabricator
 
Join Date: Oct 2009
Location: DFW
Posts: 840
Nailed it!
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:54 PM.

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Template-Modifications by TMS
Copyright 2012, Offroad Fabrication Network