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Looking to get into a TIG machine
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<blockquote data-quote="fl-krawler" data-source="post: 391910" data-attributes="member: 884"><p>Is there a reason you are using 5356 filler? IIRC that is more for cast aluminum. Try a 4043 filler and see if you like it better</p><p><a href="http://www.millerwelds.com/resources/communities/mboard/forum/welding-discussions/21164-tig-rod-4043-or-5356?20663-Tig-rod-4043-or-5356=" target="_blank">http://www.millerwelds.com/resources/communities/mboard/forum/welding-discussions/21164-tig-rod-4043-or-5356?20663-Tig-rod-4043-or-5356=</a></p><p></p><p>The little nodule is what is refered to as balling. When I weld aluminum I do a technique called chasing the puddle. Put just enough heat into it so the it is about to blow though. Dab the filler to fill the hole that is starting, move forward and repeat</p><p></p><p>As far as contamination, I keep a designated set of gloves just for the tig, or if I am barehand, I wash my hands before I start welding. I also wash everything down, including my filler with some acetone. If I am in a jam, I will adjust the welder to a higher a/c balance percentage, and do a dry low voltage run over the aluminum. It leaves it that white color that is usually along the outside edge of the weld and usually cleans the aluminum good enough to get minimal contaminates. ***Edit** now looking back at your pics, you need more a/c balance, even in normal welding. The aluminum should have a small white area right along the edge of the weld from the cleaning action as the arc switches direction during a/c operation. Try turning it up to 70% and bump the heat a little to compensate and give it a try</p></blockquote><p></p>
[QUOTE="fl-krawler, post: 391910, member: 884"] Is there a reason you are using 5356 filler? IIRC that is more for cast aluminum. Try a 4043 filler and see if you like it better [url=http://www.millerwelds.com/resources/communities/mboard/forum/welding-discussions/21164-tig-rod-4043-or-5356?20663-Tig-rod-4043-or-5356=]http://www.millerwelds.com/resources/communities/mboard/forum/welding-discussions/21164-tig-rod-4043-or-5356?20663-Tig-rod-4043-or-5356=[/url] The little nodule is what is refered to as balling. When I weld aluminum I do a technique called chasing the puddle. Put just enough heat into it so the it is about to blow though. Dab the filler to fill the hole that is starting, move forward and repeat As far as contamination, I keep a designated set of gloves just for the tig, or if I am barehand, I wash my hands before I start welding. I also wash everything down, including my filler with some acetone. If I am in a jam, I will adjust the welder to a higher a/c balance percentage, and do a dry low voltage run over the aluminum. It leaves it that white color that is usually along the outside edge of the weld and usually cleans the aluminum good enough to get minimal contaminates. ***Edit** now looking back at your pics, you need more a/c balance, even in normal welding. The aluminum should have a small white area right along the edge of the weld from the cleaning action as the arc switches direction during a/c operation. Try turning it up to 70% and bump the heat a little to compensate and give it a try [/QUOTE]
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