Bruce Judson

Nov 04 at 06:06 PM

Yes Please!

Reply

Nov 04 at 01:56 PM

Thank for the video Brad. I've made some practice cubes using thinner material, 0.065". I struggle tacking the corners on such thin stock. I like to tack the corners since it is nice to start and stop on a solid tack. When I tack the corners, the arc-start seems to melt the three surfaces back a bit, then I have to quickly add some filler, this works but I end up with a bigger and inconsistent tack. 

Any guidance to get more consistency?  

Aug 12 at 03:51 PM

Hey Brad, just saw your post on IG about a stainless steel replacement tank project. I'm curious if you can provide some details like the thickness of the material, basic settings and if you back purged. I'm been trying stainless without back purging, and have gotten some decent result by using lower amperage so that I don't get full penetration. I don't believe full penetration  is needed for strength on a tank. I was hoping to get some confirmation or good advise for stainless steel tank welding. 

Dec 24 at 08:53 AM

Thanks JD! Your Mop Tub video came out right after my post and was very helpful. Makes sense to purge the whole thing. Thanks again.

Dec 22 at 10:51 AM

Francisco SotoI too use a #5 stubby with 3/32 tungsten. I find extending the tungsten a bit more than the 5/16" recommendation helps with visibility and gives a bit more room for feeding the filler. Since the tee traps the argon, the gas coverage is good with the normal setting of between 5 and 10 CFH.

Posted

Dec 21 at 02:20 PM

I'm interested in welding some stainless tanks/containers using 0.048" (#18) sheet. I've seen folks do this on YouTube, without back purge. I tried a couple of test pieces, and the back is not good, 'sugared' I believe is the term, exactly like the videos show on WelderSkills. I watched Roy's video using aluminum foil to contain the purge gas, but as the tank is sealed up, that becomes difficult. 

What do people do, or are the final welds always crappy on the inside? 

2

Dec 21 at 02:09 PM

I recently had my first bottle of bad Argon. I was welding round aluminum tubing and had the setting and techniques pretty dialed in. I changed the bottle and part of the weld was terrible but part was reasonable...so confusing. I have two bottles so I switched them out, which resulted in nice consistency.  I brought the 'bad' bottle back to AirGas and they swapped it out, no charge or problem. When I used this bottle, everything was good. 

To answer your question, the only way I know is to switch bottles...

Commented on 0.023 stainless

Oct 31 at 05:15 PM

Very interested. If or how you purged the back side would be helpful. I’m guessing if you didn’t purge the back, maybe you set for less than full penetration welds. Discussion of this your be helpful to me, thank you.