So I have been wondering about adding HF to one of these cheap little stick/tig welders that are everywhere. Other than spending 5 times the cost of the welder...
Don: I think that you have just addressed a number of the elements which make for the major price difference between the HF or equivalent units and a real TIG...
I lived thru the HF welders a while ago, they aren't that good. If you want a real welder, one that Tim "The Tool Man" Taylor would be proud of, get a Lincoln ...
Cool. Forward bias of 600v and 350 amp capacity. $37.00. Next question, will HF pass through a diode? And thinking about it, wouldn't HF run back into the...
... Nope, you need a choke in the high current line and a capacitor in the HF line. Ideally the HF will be blocked by the choke and the DC will be blocked by...
Don donmcdonald@... wrote:> So I have been wondering about adding HF to one of these cheap little stick/tig welders that are everywhere. ... Don; Here's a CC...
Hmm, I hope he does the drawing. I have built Tesla coils, easy to do and great to make your hair stand straight up, or fire up a light bulb from 5 feet away (...
Hi all, I weld steel with my TIG and I often have problems with small vulcanos or blisters forming in the weld. That leave craters or holes in the weld seam or...
Hail Welding Guru, I have a question how to check the purity of liquid CO2 (Food grade) before entering the CO2 storage tank. Any easy way except trusting ...
My company has requested me to make some kind of qualification for our welders. Current practice, we only qualify the welder based on visual welding result...
Hi Ben, I have not seen this, but it sounds like a contamination problem. Are you actually grinding the scale off of the angle iron. You should be following...
Ben, One more thought. Is it possible that your burning through some of the material, and getting contamination from the back side of the metal into your weld...
I'm looking for a small adjustable propane regulator that goes up to about 60psi. Turbotorch makes model r-lp which screws into a regular refilable propane...
Hello all, thankx for that. I have this exact problem on almost everything I weld with the TIG. ontamination makes sense but why does it not burn away and stop...
I was wondering if your gas might be contaminated. Are you using a C02 mix? Maybe try straight Argon. Take the metal you are welding to another welder and see...
... Do you have a really neutral flame? Excess oxygen or fuel may combine with the contaminants. How big and hot is the HAZ? TIG can get hotter than...
Hi all, Thanks for trying to help me out here! Firstly, it is pure Argon that I use and it is from BOC. Very expensive... I am now on the 3rd cylinder and it...
Check aws.org, asnt.org, asme.org. What type of welds do they need to be qualified for. What country are you trying for. I see from you other post that...
Ben, Have you looked at any of the mig wire made for auto work. I have been told that there are easy grind wire made for the auto body repair business. Ken...
That wire may work. Do they make an easy grind core wire? Because..I have had way better experience using core wire on contaminated steel than with the solid...
Hi all, Ken, maybe the wire will work but I don't have a MIG welder :-( The instructor at my panelbeating class said that there is no way to get the same soft...
Hi Ben, I was reading in one of the Miler books on GTAW. They mentioned something about "Killed Steel" Apparently this type of steel contains more oxygen after...
Darn...forgot to paste the web site URL...hate it what that happens... http://www.weldingweb.com/showthread.php?t=977 Just do a search for: killed steel...
Hi, Hmmm... (scratch head) Tha prousity post sounds very interesting. What does this look like when it happen? The killed steel is possible but the question...
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