CO2 WELDER
Name of Sector Fabrication Name of Module CO2 Welder
Minimum Age 18 Years Duration of Course 3 Months
ADU Code FAB 703

Degree in Mechanical Engineering with one year Experience

(OR)

Diploma in Mechanical Engineering with two year Experience

(OR)

NTC/ NAC in Welder Trade Group with three years of Experience



MAG/CO2 welding in all positions

Repair components/parts used in household & industrial appliances by CO2 Welding process.



Practical Competencies Underpinning Knowledge (Theory)
  • Use of protective safety devices on shop floor.
  • Safe working practice to be observed during welding.
  • Introduction to safety equipment and their uses.
  • Identification of tools and accessories used for MAG/CO2 Arc welding.
  • Setting up of MAG/CO2 Welding machine and depositing Straight line beads on MS plate by CO2 welding.
  • Produce Lap on MS plate in down hand position.
  • Produce Corner joint on MS plate in down hand position.
  • Produce Single "V" butt joint in down hand position.
  • Produce “T” joint on MS plate in horizontal position by CO2 welding.
  • Produce “T” joint on MS plate in horizontal position by CO2 welding.
  • Produce Lap, “T” & corner joint on MS sheet 3 mm thick in vertical down ward position by CO2 welding.
  • Produce Lap, “T” & corner joint on MS sheet 3 mm thick in horizontal position by CO2 welding.
  • Produce Lap, “T” & corner joint on MS sheet 3 mm thick in vertical down ward position by CO2 welding.
  • Produce Lap, “T” & corner joint on MS sheet 3 mm thick in vertical overhead position by CO2 welding.
  • Identification of defects on CO2 welded joints by Visual inspection & correction of defects.
  • Measurement of weld using gauges
  • Introduction of MES scheme
  • Job /employment opportunity
  • Introduction to welding.
  • Safety precautions and necessity of using protective equipments such as shields, goggles, hand glows, sleeves, aprons safety shoes etc.
  • Types of welding processes and application.
  • Metals and weldability.
  • Linear measurement metric and inches
  • Angular measurement.
  • Marking practice using Steel rule using metric and inches scale
  • Nomenclature of Fillet and groove welds
  • Welding terms and definitions
  • Weld symbol and reading of fabrication drawing
  • Distortion and methods of control
  • Introduction to MAG/ CO2 welding Power source & accessories Wire Feed unit Welding Gun & its parts. Modes of metal transfers - Dip, Globular and Spray transfer
  • Welding wire types and specification Types of shielding gases & its importance
  • Principles & applications of Flux cored arc welding
  • Trouble shooting in MAG/CO2 welding
  • Data and Tables related to CO2 welding
  • Types of weld defects in CO2 Welding, causes and remedy
  • Inspection & testing of weldments