#21
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Wow - I love this place: did not know how much the angle affected the weld. Thanks Nate & Mark!
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#22
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one thing to remember when grinding tips-they are all radioactive so try not to inhale dust!basically none given off during welding but dust from grinding to be avoided.
regarding pointed tips etc -my welds much neater with a rounded point.grind them up as per normal but just take the sharp point off the end and with aluminium i use a well blunt rounded end-especially if the weld to be visible and left as is instead of being finished.
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Ferguson |
#23
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You are absolutely correct in that thoriated tungstens, long the standard of many shops because of its all-around performance, is radioactive and that the dust from grinding should be avoided. http://www.pro-fusiononline.com/tung...ioactivity.htm However, it is the only radioactive welding tungsten, and there are several safe alternatives. Long ago I switched to ceriated tungsten as my all around choice. Here's a partial rundown from Miller, not complete because some electrodes like the ceriated ones, come in different % of cerium, each for a slightly different application. http://www.millerwelds.com/resources...lectrode-guide The list above also doesn't include the new kid on the block, the E3 or so-called "purple" tungsten because of its purple color indicator. http://www.e3tungsten.com/ Everything I have read about the all-around performance of the new E3 tungsten has been good, and it's on my list for the next trip to the welding supply. Hope this helps.
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Mark from Illinois Last edited by weldtoride; 09-06-2013 at 09:18 AM. |
#24
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Where I am I can only find thoriated (red) and straight (white) tungstens - is there enough difference in performance on the ceriated/zirconiated etc to warrant me trying to import some?
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#25
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#26
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Jim Russell |
#27
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As a shop teacher, I had to count my shop budget to the penny, and this supplier is hands-down the cheapest I have found so far for all welding consumables. Admittedly they are half a world away from you, so getting products to you may be too costly. Anyway, here's their tungsten page for example: https://weldingsupply.com/cgi-bin/ei...F:OR:terms::PN My experience with weldingsupply.com is that they have genuine Weldcraft for less than my local my local gas supplier has knock-off generic consumables. My local gas supplier is a national chain, but prices over the counter in store are not good, sometimes not even reasonable. After some bad knock-off gas lenses as well as cheap tungstens, both of which caused no end of consternation to diagnose where my problem was coming from, I refuse to buy anything but name brand. Especially when it can come as cheap or even cheaper than the knock-offs thru this supplier. weldingsupply.com is actually an old brick-and-mortar, not a new comer to the playing field, but they do internet sales in a huge way. So big, in fact, that if you are in the area (west Chicago, basically) you have to call your order in ahead of time, they discourage walk-ins. No big deal, when I walk in, my order is waiting for me. I know exactly what it costs ahead of time, I plunk the presidents down and leave. Small orders I have shipped. Again, I am in the same shipping zone, not a continent and a hemisphere away. A caveat: shipping cut rods is too expensive even for me, due to their length. All my dealings with them so far have been more than satisfactory, due to their price structure and friendly service.
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Mark from Illinois Last edited by weldtoride; 09-07-2013 at 05:39 PM. |
#28
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#29
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Thingsthatfly2, I love that you are sharing the learning process with us. I fight some of the same TIG and welding issues you do, just doing it at home though not trying to make a business. I follow Troy's work at RadRides and I follow along on a lot of pro builds on lateral-g.net, and that is the one thing that continues to flummox me - after they show the panel nicely welded, the next photo always shows it fully metal finished and you can't even tell it isn't one piece of metal.
My work is like yours right now, even after all sanding, grinding and bumping, you can always see the voids and remains of the valley etc. Easily covered with the barest of mud, but nothing like the seamless sheet metal the best of the best are creating. |
#30
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lots of good info being posted.
I had fun today. I finaly bought some aluminum and stainless steel! first made a cube... and then added this front panel. had to fix a few small holes water still leaked through. going to make a cap next and polish.
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Brent Click |
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