Well... it's been a WHILE and I've learned a LOT - but unfortunately not been able to convert what I've learned into very much SKILL at welding :shock: I did get the job done. Just completed a few hours ago and I think it was "successful".. at least from a construction standpoint - with ab...

I have a Miller Dialarc HF, now some 30 years old (and about as HEAVY as my race car). It works just fine, but has a water cooled torch that is also HEAVY. I don't like the weight and hassle of trying to get it (the torch) into (and KEEP IT THERE) the right position. The Miller is also missing a lot...

OK.. while we are on the subject of exhaust and ss, I've read about 'cooking your stainless', but nothing was ever said about the result of doing that. I doubt if I will be good enough to NOT "cook my stainless", but wonder if there are long term effects on the base material.. or is it OK ...

you need to have purge gas running well before welding. depending on volume. the other trick i've seen done is to use an old valved tig torch. you can fit an old gas lens in it. but mainly having the on/off valve helps save a bit of gas if your having to stop and start. OK.. how can I determine whe...

cj737 wrote:...
I use Quik Connectors on my purge hose. When I’m ready to weld, I plug it in. Stop welding, disconnect. Gas won’t flow until the connector is connected.
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Thanks - I hadn't thought of using quik connects for that line. I'll get some on order.
Steve

Richard, Yes.. I'm purging with the line that goes to the torch from the machine. Splitting the flow at that point from the welder. I am using a long PREflow to give enough time for the argon to get to the work piece. That gives the line some 10 seconds or so to fill the work piece before I strike a...

After I hit the SUBMIT button, it occurred to me that I DO have some pix of the repairs that need to be made. This is a shot of the damaged collector. You can see the rolled edge right at the center where the input tube is pushed back into the clamshell. The result of that was that the collector out...

Thanks, Richard. NO.. no pix since I've been working on other things lately. I'm welding (planning to weld) on a stainless exhaust system for my race car (Sports Car Club of America). The collector was damaged in a relatively minor accident at my last race and I've decided to try and repair it mysel...

I have searched all over the internet for the answer to this. It's probably as simple as the nose on my face, but I just can't quite see it :mrgreen: . WHY is it that no one (seems) uses the torch gas output to siphon off enough gas (Argon) to use for backpurging? All the setups I've been able to fi...