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Old 02-24-2023, 01:36 PM
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Bigfoot Bigfoot is offline
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Default Come on Baby, Let's Do The Twist

I had this perfectly straight, don't know what I did wrong, but it twisted. Would you cut it apart and start over or? I tried setting it up on 3 corners and pressing down on the 4th with the forklift blade but, didn't seem to work too good. Any ideas? Thanks! It's a gate for my upstairs guard rail.
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Old 02-24-2023, 03:13 PM
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toprecycler toprecycler is offline
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I know what you did wrong. You welded it!

Don’t take it too hard. Every weld will pull, warp, or do something funky, no matter what you do. The best you can do is to try to minimize it, and that comes from experience.

So, it is a gate. So how particular are you going to be about it? Can you make it work as is, or does it have to be perfect.

As far as when you were welding it up. Did you have it clamped to something solid, so as you welded the joints, they would be held in place as the weld cooled off? Did you skip around welding different joints so you didn’t put a lot of heat into any one joint at a time. Lots of variables here.

Depending on where the warp/ bow is, I have had luck with heat straightening. But it takes a bit of patience and thinking.

Basic idea is, if you heat a spot up to at least red hot, when it cools back down, the spot will end up shrinking smaller than it was originally. That’s what the welds do as they cool down. And it pulls the weakest part of metal that way.


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Old 02-24-2023, 03:29 PM
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I wouldn't cut it apart, I would try using heat, remember it will get worse before it will get better.
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Old 02-24-2023, 04:41 PM
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Thanks guys!
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Old 02-24-2023, 07:04 PM
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If that's a big ass forklift in the second pic, there is no way that gate is going to stay bent. I wouldn't waste my time with heat.

YMMV.
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Old 04-04-2023, 12:05 PM
threepiece threepiece is offline
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Quote:
Originally Posted by arizonian View Post
If that's a big ass forklift in the second pic, there is no way that gate is going to stay bent. I wouldn't waste my time with heat.

YMMV.
Indeed, I straighten things like this often enough. Set it up on the floor with blocks to prevent over bending. Subtract the blocks a bit at a time until you have overbent it very slightly. Then re set-up to bend in opposite direction but this time use your body weight and perhaps jumping a bit.

This slight back bending in the opposite direction will relieve some of the internal stress that can cause it to deform again later when in use.
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