carlos420uk
In the garage....
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Just thought I'd post a few pics of my lastest practise session with the Mig.
So first up, and one of the reasons I decided to learn how to weld were some small holes in the floor pan of my Civic Type R track car project that needed plating up. The floor pan itself is 0.8mm and flimsy as you get. So I bought some 1mm sheet to make patches to be butt welded in place using the thin metal technique. Some of them were straight forward flat squares, whereas some were contoured and needed a shaped plate to fill them in properly.
I used my dremmel and a bench grinder to carefully cut and shape the patches to fit the squares I had cut in the floor, rounding off the corners to hopefully stop them from blowing away.
Initially did the first patch on min 2 with a wire speed of around 7 and blew a couple of holes due to it being just a little too hot. I was starting the arc just on the thicker 1mm side and then flicked over onto the floor pan which seemed to work ok. After a quick grind down I managed to repair the mistakes. You can see in the top corner where the weld is a bit piled up
Went about welding up the next few patches, only this time with the welder set to min 1 with a wire speed of around 6.5. This went much better and only blew one tiny hole which was instantly re-filled, the 3rd one also went without an issue.
I would say that I got slightly less penetration on the lower setting with the 2nd and 3rd patch and the weld could be a little flatter and neater that's for sure; but it was such a fine line between really good penetration and a high risk of blowing out, or adequate penetration with a low risk of blowing so I choose the easy option.
I still have 3 more to do which are all cut, bent, and shaped ready to be welded in, hopefully get them done later.
A few weeks ago I bought in a load of steel for practise and projects. Some box section, angle, flat bar, 1.5,2, and 3mm sheet. I Cut myself a load of 100x50mm pieces out of the 1.5mm sheet to practise with and found it way easier than the 1mm stuff I had been using. Did a few practise runs, some butt welds, T-fillets, lap joints and also simply laid a few beads on a sheet to set the welder up.
Anyway enough rambling, here's some pics. Any pointers or advice welcome.
So first up, and one of the reasons I decided to learn how to weld were some small holes in the floor pan of my Civic Type R track car project that needed plating up. The floor pan itself is 0.8mm and flimsy as you get. So I bought some 1mm sheet to make patches to be butt welded in place using the thin metal technique. Some of them were straight forward flat squares, whereas some were contoured and needed a shaped plate to fill them in properly.
I used my dremmel and a bench grinder to carefully cut and shape the patches to fit the squares I had cut in the floor, rounding off the corners to hopefully stop them from blowing away.
Initially did the first patch on min 2 with a wire speed of around 7 and blew a couple of holes due to it being just a little too hot. I was starting the arc just on the thicker 1mm side and then flicked over onto the floor pan which seemed to work ok. After a quick grind down I managed to repair the mistakes. You can see in the top corner where the weld is a bit piled up
Went about welding up the next few patches, only this time with the welder set to min 1 with a wire speed of around 6.5. This went much better and only blew one tiny hole which was instantly re-filled, the 3rd one also went without an issue.
I would say that I got slightly less penetration on the lower setting with the 2nd and 3rd patch and the weld could be a little flatter and neater that's for sure; but it was such a fine line between really good penetration and a high risk of blowing out, or adequate penetration with a low risk of blowing so I choose the easy option.
I still have 3 more to do which are all cut, bent, and shaped ready to be welded in, hopefully get them done later.
A few weeks ago I bought in a load of steel for practise and projects. Some box section, angle, flat bar, 1.5,2, and 3mm sheet. I Cut myself a load of 100x50mm pieces out of the 1.5mm sheet to practise with and found it way easier than the 1mm stuff I had been using. Did a few practise runs, some butt welds, T-fillets, lap joints and also simply laid a few beads on a sheet to set the welder up.
Anyway enough rambling, here's some pics. Any pointers or advice welcome.
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