Practical Considerations for Welding Aluminium - Flipbook - Page 11
Equipment & Consumables
▪ TIG welding power source
▪ Alternating Current (AC) output
▪ High frequency arc starting (only)
▪ Adjustable wave balance
▪ % Cleaning vs % Penetration
▪ Pre-weld purge and crater fill (slope down)
▪ DC+ with 100% helium can be used
▪ arc striking problems
▪ Very rapid progression
▪ Amperage capacity and duty cycle needs to be sufficient
▪ High thermal conductivity of aluminium
