Help Welding Titainium

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Figured this is a good place to start, for information on welding Ti.Never made an attempt to date, someone brought in a silencer for an MX bike I told him I would look into welding it for him. So any infor would greatly appreciated.Filler rod, preheat back gas, ?!Thanks,Karl
Reply:Since posting found a brief, but what seems to be a good article  from The Fabricator dated march of 1999. Still open to input!
Reply:Check out WeldingTipsAndTricks.com and type "Titanium" into the search box. There are quite a few results along with some videos that should give you the information you seek. Here's just one of the results.http://www.weldingtipsandtricks.com/...-titanium.htmlBrad GeorgeCurrent Equipment:AIRCO Heliwelder IV 300Amp Model - Total Awesomeness!Old 120v Hobart Handler MIGVarious grinders, cutting tools, hammers, clamps, ect..."I'm an amateur welder with lots left to learn..."
Reply:Welding titanium?Use titanium filler of the appropriate alloy to match or be compatible with the base alloy, if indeed the base alloy is a weldable one (not all titanium alloys are weldable).  Titanium has to be clean-clean-clean, before being welded.  Titanium really-really-really has to be protected from oxidation when it is being welded, that often means something like a 'glove-box' inert chamber, or careful back purging and trailing shields on the 'front' side.  The best laid schemes ... Gang oft agley ...