Welding titanium (tig). Any tricks to it?

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Hi, just wondering if you have welded titanium with a tig and if so how did it go? Any tricks to it? Thanks so much in advance for the replies!  Rev
Reply:At welding temps Ti is extremely reactive and will form brittle compounds with most elements (oxides, nitrides, carbides etc) and is prone to hydrogen porosity so everything needs to be REALLY clean and blanketed with argon. Take care of those issues and it's very nice to weld although you need to be accurate with the filler wire- catch the edges of the puddle and the wire will stick (as though it's magnetic) which if/when it catches you out can result in a messWill need to be purged (just as you would stainless or nickel alloys),  but ideally needs a trailing cup (third gas line to provide gas coverage behind the torch cup) to prevent the hot weld from oxidising if an inert purge chamber isn't practical. If neither is practical then can often get away with using a large gas lens and #12 or larger ceramic but may have to limit weld run out length in order to provide sufficient gas coverage. Keep the filler wire within the gas shield at all times or it'll oxidise- if wire is discoloured after finishing a weld run then not doing it right (snip the end of the wire and keep practicing)Search the forum for 'titanium', plenty of threads on the subject and the millerwelds site has at least one article on the subject (with more detail and pics of trailing shileds). Probably articles on 'welding tips and tricks' and 'the fabricator' too
Reply:Give this webpage a look he welds it about everyday.  http://www.strongframes.com/ and hear is what  i have seen on miller http://www.millerwelds.com/resources...anium-welding/
Reply:Thanks a bunch!