Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Fabrication

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 03-31-2020, 05:24 PM
threepiece threepiece is offline
Elite Member
 
Join Date: Jul 2011
Location: Suburban Detroit Mi
Posts: 1,409
Default You Don’t Need a Sheet Metal Brake

Unless you are bending on a regular basis I would agree that a heavy steel table is much more useful/versatile than a metal break in most metal shops. I bought a 48” leaf break some 25 years ago. I don’t think I have used it ten times since then. In fact it is hiding in my storage room and I haven’t seen it in several years.

This steel sheet is .082” (2mm) thick and 30” long. The table it is clamped to is some sort of tooling plate I bought from the scrap yard. It is Blanchard ground and weighs 1800 lbs.

The 2x4 wood block and 8 pound hammer were also used to make this bend.
Attached Thumbnails
Click image for larger version

Name:	DAB433D7-5B53-4E83-AB1A-AB03DFBD9A37.jpg
Views:	223
Size:	196.8 KB
ID:	155355  
__________________
It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

Aren't energy consumption and computers supposed to make life less stressful?

If you are not having fun then you are doing it wrong.
Reply With Quote
  #2  
Old 03-31-2020, 09:01 PM
GWIZ's Avatar
GWIZ GWIZ is offline
SFT Historian
 
Join Date: Feb 2006
Location: USA
Posts: 7,046
Default

Nice.
If there is a will there is a way.
__________________
*
*
The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment. ~Warren G. Bennis
Reply With Quote
  #3  
Old 04-01-2020, 06:05 AM
digger doug's Avatar
digger doug digger doug is offline
Not to be used as a Flotation Device
 
Join Date: Jan 2008
Location: NW Pa
Posts: 12,346
Default

Quote:
Originally Posted by threepiece View Post
Unless you are bending on a regular basis I would agree that a heavy steel table is much more useful/versatile than a metal break in most metal shops. I bought a 48” leaf break some 25 years ago. I don’t think I have used it ten times since then. In fact it is hiding in my storage room and I haven’t seen it in several years.

This steel sheet is .082” (2mm) thick and 30” long. The table it is clamped to is some sort of tooling plate I bought from the scrap yard. It is Blanchard ground and weighs 1800 lbs.

The 2x4 wood block and 8 pound hammer were also used to make this bend.
So you own a perfectly good brake, but decided to bash it with an 8lb hammer instead...."Classy"....
Reply With Quote
  #4  
Old 04-01-2020, 06:47 AM
threepiece threepiece is offline
Elite Member
 
Join Date: Jul 2011
Location: Suburban Detroit Mi
Posts: 1,409
Default

Quote:
Originally Posted by digger doug View Post
So you own a perfectly good brake, but decided to bash it with an 8lb hammer instead...."Classy"....
What do you expect from a man who doesn’t have a properly functioning toilet and shits on the printed faces of good looking well adjusted people?
__________________
It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

Aren't energy consumption and computers supposed to make life less stressful?

If you are not having fun then you are doing it wrong.
Reply With Quote
  #5  
Old 04-01-2020, 07:25 AM
threepiece threepiece is offline
Elite Member
 
Join Date: Jul 2011
Location: Suburban Detroit Mi
Posts: 1,409
Default

Some tips for doing something like this:

1- Like the anvil the bigger the better. Having more mass underneath will transmit more energy into the work rather than it being absorbed.

2- Preloading is important when you have a long stick-out leg like the set up shown in the picture. I like to add as much force to the bend as I can without causing any permanent bending. In the picture you can see about 100 lbs. of steel blocks clamped to the outer edge. As the bend progressed downward the weight was less affective so I added a chain hooked to the C clamp under the table and a turnbuckle on top. This not only makes the hammering process much easier, it also prevents the long leg from deforming because of the inertia it possesses.

3-Choose the right hammer and corking tool. Hammer size depends on the mass of the structure it is hitting and the width of the corking tool. As a rule the higher the mass underneath and the wider the corking tool the bigger the hammer should be.

I have bent up to 1/4” plate steel using these techniques. That process involved a 16 pound hammer and a special made corking tool on a three foot rod held by another person.
Attached Thumbnails
Click image for larger version

Name:	4B4C05A3-5981-4EAE-B0D6-382858083536.jpg
Views:	102
Size:	195.5 KB
ID:	155359  
__________________
It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

Aren't energy consumption and computers supposed to make life less stressful?

If you are not having fun then you are doing it wrong.
Reply With Quote
  #6  
Old 04-01-2020, 07:29 AM
threepiece threepiece is offline
Elite Member
 
Join Date: Jul 2011
Location: Suburban Detroit Mi
Posts: 1,409
Default

The finished bend.
Attached Thumbnails
Click image for larger version

Name:	8F5F2CE9-1707-4BFF-A73F-7C97EDFEB0FC.jpg
Views:	119
Size:	196.8 KB
ID:	155360  
__________________
It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

Aren't energy consumption and computers supposed to make life less stressful?

If you are not having fun then you are doing it wrong.
Reply With Quote
  #7  
Old 04-01-2020, 09:39 AM
Ironman's Avatar
Ironman Ironman is offline
Iron Modification Investigator
 
Join Date: Feb 2008
Location: Warburg, Alberta, Canada
Posts: 14,664
Default

I like your table, nice find.
__________________
Gerry
You got freedom of speech, if you don't say too much.
Aaron Neville.

The virtue is always a cover for the sin. That's the key to understanding the modern left. Whatever they're accusing you of doing, they are doing themselves but more enthusiastically. And that's definitely the story of Justin Trudeau. Tucker Carlson
Reply With Quote
Reply

Thread Tools
Display Modes

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

Web Search:

All times are GMT -5. The time now is 10:23 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.