How To Clean Titanium Before Welding. You dont want to hard roll before welding. To remove the last remaining organic compounds just before welding use a lint-free glove and methyl alcohol acetone or other chlorine-free solvent.
Remember that the cleaner the titanium will be the stronger your created weld will be. Before welding make sure you break down the oxide layer on titanium. Clean the filler rod.
To remove the contaminants you can use a steam cleaner or a diluted solution of sodium hydroxide.
Any cracked or contaminated tack welds must be removed before final welding. The tube and hole had better be very clean when they go. Sandblasted using 50 µm silicon dioxide SiO2 straps at 25 psi to create dull surfaces to reduce laser beam reflection during laser welding. To remove the last remaining organic compounds just before welding use a lint-free glove and methyl alcohol acetone or other chlorine-free solvent.