- Thread starter lornemalvo
- Start date
so is gas brazing , but if you compare it to tig its not too bad , the nice thing is that oxy acet kit is practically free these days , and once you have the gas set up it has many many uses.True,but mig brazing,costly
premmington
Member
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- Norfolk
premmington
Member
- Messages
- 7,096
- Location
- Norfolk
The only downside of using 0.6mm wire I found is:
At higher feed speeds if you get the torch angle wrong (or you got no choice over torch angle under a car). You can get burn backs into the torch nozzle when you stop welding. You can clear these - but it does involve stripping the torch nozzle.
I got two MIG's threaded up in my car repair workshop.
1. Low amp with 0.6mm A18 wire with pure Co2.
2. Higher amp with 0.8mm or 1.0mm with mixed gas.
I also use a DC MMA welder more than you would think - repairing cars - 312 rods for bolt extraction/welding things to rounded nuts. Yesterday I put three blobs of 312 on a rounded/corroded suspension nut @120degrees - hammered one of those Irwin bolt grip extractors on it - extractor got hold of the three blobs of weld (plus the heat from heat from weld helped). Moved it with breaker bar - drowned it in WD40 - then gunned it off with a battery gun.
At higher feed speeds if you get the torch angle wrong (or you got no choice over torch angle under a car). You can get burn backs into the torch nozzle when you stop welding. You can clear these - but it does involve stripping the torch nozzle.
I got two MIG's threaded up in my car repair workshop.
1. Low amp with 0.6mm A18 wire with pure Co2.
2. Higher amp with 0.8mm or 1.0mm with mixed gas.
I also use a DC MMA welder more than you would think - repairing cars - 312 rods for bolt extraction/welding things to rounded nuts. Yesterday I put three blobs of 312 on a rounded/corroded suspension nut @120degrees - hammered one of those Irwin bolt grip extractors on it - extractor got hold of the three blobs of weld (plus the heat from heat from weld helped). Moved it with breaker bar - drowned it in WD40 - then gunned it off with a battery gun.
Maxakarudy
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- Alpha Centauri
That's been my experience too, I also suggest that transformer welders struggle on thin stuff or at least leave a bigger weld that needs more grinding, they're ok at plug welding but doing butt welding, you need low amps obviously, but a stable arc, people think 0.6mm is the only answer on thin stuff, but with the right welder using 1mm wire you can easily weld 1mm steel
I had a friend who's son (a carpenter) was rebuilding a car for the first time, he asked me to give him some guidance, as he was struggling with his mini mig from
Machine Mart, I couldn't get it to weld anything thin, wire was dipping of the tip, burning holes for fun, I did try for a good 15mins, so IMO if you want weld thin stuff an inverter is the place to start.
Btw if you do have got a transformer welder that you can really get comparable results from, pls demonstrate it, telling me what you can do is pointless, let
the weld do the talking.
