TIG WELDING

TIG WELDING

1. TUNGSTEN ELECTRODES

   • THORIATED
   • ZIRCONIATED
   • CERIATED

2. METHODS OF STARTING

   • SCRATCH START
   • HIGH FREQUENCY START
   • LIFT STRIKE

3. 5 ADVANTAGES

   • CLEANER WELD
   • WELDING IS MORE ACCURATE
   • TIG CAN BE USED ON DIFFERENT TYPES OF STEEL
   • MORE CONCENTRATED ARC GIVING DEEPER PENETRATION
   • PENETRAT6ION CONTROL IS BETTER, ALLOWING WELDER TO ACHIEVE MORE CONSISTANT ROOT BEAD PROFILE.

4. TIG TORCH PARTS

   • CERAMIC NOZZLE
   • TUNGSTEN
   • GAS LENS
   • TRIGGER
   • BACK CAP
   • SPLIT COLLET

5. TYPES OF CURRENT

   • AC
     • THE DIRECTION OF THE FLOW OF ELECTRONS IN AN AC CIRCUIT IS AUTOMATICALLY REVERSED AT REGULAR INTERVALS
   • DC
     • THE FLOW OF ELECTRONS IN A DIRECT CURRENT CIRCUIT ARE IN ONE DIRECTION ONLY
       • THREE PHASE CIRCUIT

6. SHIELDING GASES

   • ARGON
   • HELIUM
   • ARGON HELIUM MIX
   • HYDROGEN ON CERTAIN APPLICATIONS
   • ARGON HYDROGEN MIX
   • ARGON NITROGEN MIX

7. FILLER WIRE

   • HAS TO BE THE SAME MATERIAL AS WHATEVER YOUR WELDING ON
   • STAINLESS STEEL
   • ALUMINIUM
   • MILD STEEL

8. PPE

   • WELD MASK
   • FIRE RESISTANT TIG GAUNTLETS
   • FIRE RESISTANT OVERALLS
   • STEEL TOE CAP BOOTS
   • SAFETY GLASSES
   • EAR PLUGS

9. TECHNIQUES

   • WEAVED BEAD
   • STRAIGHT BEAD