Once you’ve determined the proper flow rate for your specific weld, you’ll want to use a Welding Flow Meter to ensure the proper flow rate, and a Shield Gas Flow Tester to measure the actual gas flow at the torch.
You also want to make sure your equipment is in good working order. Check all your gas connections and supply hoses.
Remove the back cap from your TIG Torch and check the o-rings. They can easily dry out and crack, creating an entry port for oxygen. Besides it’s a dollar repair–well worth the trouble.
Also, check the torch insulator while you’re at it, and make sure all the parts are well seated and fit properly.
Note: Arc-Zone.com has all the replacement parts you’ll need for your TIG Torch, and handy graphics (like the one below) so you’ll know exactly what you need:
Welders who are new to Titanium welding may not realize that the recommended gas hose set up is not a rubber hose, but rather a vinyl one. Arc-Zone will be launching a specially manufactured hose for high purity TIG welding (you can read about it over on CarmenElectrode.com). You can special order one by calling Arc-Zone at 800-944-2243.
In the meantime, use your vinyl hose. Rubber can absorb moisture and oxygen and deliver it to the weld zone.
ADDITIONAL RESOURCES:
“The Right TIG Torch Hose for your High Purity Welding application”
“Know your TIG torch: advice and maintenance practices to ensure quality”
“A shielding gas primer for GTAW: gas selection and optimization”