Kindafearless
Well-Known Member
- Thread starter
- #301
Had some fun with the track bar bracket
This one is clearly my fault for not welding at a high enough temperature.
Start of the story:
- Before the trip I had saw some metal stress in the bracket. I cleaned and re-welded the bracket. My welds looked clean and I didn't see any signs of contamination.
- During the Rubicon I periodically checked to make sure everything is ok. Welds looked good for the whole trip.
- After the Rubicon, we had about 3 hours of road driving to get to hotels and back to the trailer.
The roads around Tahoe are pretty bad, and part way through I started feeling a little wobbling... which quickly turned into death wobble. The first occurrence was BAD, clearly something had come loose.
I stopped and check, and sure enough, while my welds looked like they were still holding, I hadn't gotten deep enough. So where I touched the other mild steel components, the weld was still solid, but it was bending. Where I was fusing to the axle housing itself though, my welds were coming loose.
Drove slow and careful, and got back to the trailer.
At our next destination (Silverton), I found a local blacksmith who had a welding truck. Literally nicest guy in the world. He let me use his truck and set me up with all the equipment I needed to clean and prep everything.
This time, I nearly doubled the amperage and got a really solid weld. It held the remainder of the trip.
Some tech details:
The original welds were TIG welds done at around 140-150 amps. Which was probably the right temperature for just the metal on the track bar mount. I picked that temp since I could see solid welds being formed between the different mild steel parts.
New welds were with stick between 200-230 amps. They aren't pretty, but they definitely penetrated and are holding solid.
As part of my post trip maintenance I intend to take the axle off, take it apart, and re-weld with a new bracket.
Good learning experience and I bought some really beautiful metal art from the Blacksmith whole helped me out
It was also fun to use a big fancy welder, I haven't used a machine with that high of a top end amperage before.
Start of the story:
- Before the trip I had saw some metal stress in the bracket. I cleaned and re-welded the bracket. My welds looked clean and I didn't see any signs of contamination.
- During the Rubicon I periodically checked to make sure everything is ok. Welds looked good for the whole trip.
- After the Rubicon, we had about 3 hours of road driving to get to hotels and back to the trailer.
The roads around Tahoe are pretty bad, and part way through I started feeling a little wobbling... which quickly turned into death wobble. The first occurrence was BAD, clearly something had come loose.
I stopped and check, and sure enough, while my welds looked like they were still holding, I hadn't gotten deep enough. So where I touched the other mild steel components, the weld was still solid, but it was bending. Where I was fusing to the axle housing itself though, my welds were coming loose.
Drove slow and careful, and got back to the trailer.
At our next destination (Silverton), I found a local blacksmith who had a welding truck. Literally nicest guy in the world. He let me use his truck and set me up with all the equipment I needed to clean and prep everything.
This time, I nearly doubled the amperage and got a really solid weld. It held the remainder of the trip.
Some tech details:
The original welds were TIG welds done at around 140-150 amps. Which was probably the right temperature for just the metal on the track bar mount. I picked that temp since I could see solid welds being formed between the different mild steel parts.
New welds were with stick between 200-230 amps. They aren't pretty, but they definitely penetrated and are holding solid.
As part of my post trip maintenance I intend to take the axle off, take it apart, and re-weld with a new bracket.
Good learning experience and I bought some really beautiful metal art from the Blacksmith whole helped me out
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