MIG WELDING

MIG WELDING

1. POWER SOURCE

   • POSITIVE TORCH
   • TRANSFORMER
   • ALWAYS DC POWER SOURCE
     • VOLTAGE
   • CURRENT ALTERED BY WIRE SPEED
     • AMPERAGE

2. TORCH

   • STANDARD GOOSE NECK
   • PUSH/PULL
   • SPOOL ON TORCH

3. EQUIPMENT

   • RETURN CABLE
   • GAS CYLINDER
   • REGULATOR
   • WIRE FEED UNIT
   • POWER SOURCE
   • FLOWMETER
     • LPM

4. WELDING ARC

   • FILLER WIRE
   • CONTACT TIP
   • GAS SHIELD
   • BASE METAL

5. SAFETY CHECKS

   • GAS CONNECTIONS
   • ELECTRICAL CONNECTIONS
   • INSULATION DAMAGED
   • CONDITION OF HEAD SHIELD
   • WELD CURTAINS
   • FIRE EXTINGUISHERS

6. SHIELDING GAS

   • ARGON + CO2
   • CO2
   • AR+HE+CO2+02
     • ARGON + CO2+ 02

7. HARMFUL FUMES

   • CARBON MONOXIDE
   • OZONE
   • NITROUS OXIDE
   • NITROGEN DIOXIDE

8. VARIABLE SETTINGS

   • GAS FLOW
   • WIRE SPEED
   • ARC VOLTAGE
   • TRAVEL SPEED
   • GAS PRESSURE

9. CONTROLLING DISTORTION

   • CLAMPING
   • JIGS
   • PRE-SETTING
   • TACK WELDING