
Hi Tito!
Please give us more info regarding your project such as; Grade of Ti, Thickness of material, current, type of tungsten, are you using a gas lens and as big of ceramic cup that you can get your hands on? What is the CFH of your shielding gas and is it a ultra high (around 10 to 40 parts per million max. of oxygen in the argon) purity grade of argon? The same goes for your trailing (are you using some type of trailing shield while welding?) and purging gas - need to know the Cubic Feet Per Hour flow rate coming out of your flowmeters.
Can you describe specifically what type of enclosure (collapseable or vaccum type?) you were using previously? What are you using to clean and prep the Ti prior to welding? Cleanliness is the key with Ti and so is the avoidance of ANY cross-contamination!!! In the enclosure, were you checking (O2 analyzer) the amount of oxygen in the enclosure's atmosphere?
Are you using a suitably matching or recommended filler metal?
If you can give us most of the info I noted, there's a strong possibility that amongst all of us that frequent this forum, enough suggestions and appropriate recommendations will be given to answer your questions...
BTW Rodtester, Ti is NOT THAT DIFFICULT to weld at all!!! It only requires a whole lot more preparation, awareness and understanding.
I look foward to hearing your responses Tito!
Respectfully,
SSBN727
Run Silent... Run Deep!!!